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Wang L, Jin S, Wang P, Li X, Liu C, Sun S, Zhang G, Chang J, Yin Q, Zhang H, Zhu Q. Fermented total mixed ration enhances nutrient digestibility and modulates the milk components and fecal microbial community in lactating Holstein dairy cows. Front Vet Sci 2024; 11:1408348. [PMID: 39205803 PMCID: PMC11350115 DOI: 10.3389/fvets.2024.1408348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 07/15/2024] [Indexed: 09/04/2024] Open
Abstract
Fermented total mixed ration (FTMR) is an effective method of preserving high-moisture byproducts with higher aerobic stability after fermentation. FTMR has the potential to fulfill the daily nutritional requirements of cattle and enhance their production performance. The objective of this research was to examine the influence of FTMR on lactation performance, total tract apparent digestibility, fecal microbiota communities, and fermentation profiles in lactating dairy cows. A total of 12 cows were randomly assigned into two groups: the TMR group and the FTMR group. The TMR group was fed a total mixed ration (TMR) diet, and the FTMR group was fed an FTMR diet. The FTMR did not impact milk yield in dairy cows despite a decrease in dry matter intake, which increased the efficiency of the feed. In contrast to that in the TMR group, the milk fat content in the FTMR group was greater. The FTMR group showed greater digestibility of neutral detergent fiber (NDF), organic matter (OM), dry matter (DM), crude protein (CP), and acid detergent fiber (ADF) in the total digestive tract than did the TMR group. The FTMR increased the concentration of butyrate in the fecal matter and reduced the pH of the feces. The Chao1, ACE, and Shannon indices of the archaeal community in dairy cow feces were significantly higher in cow fed the FTMR compared to those fed the TMR. LefSe analysis revealed higher levels of Oscillospira, Lactobacillus, Prevotella, and Dehalobacterium in the feces of dairy cows fed the FTMR than in those fed the TMR. However, the abundances of Roseburia, rc4-4, Bulleidia and Sharpea exhibited the opposite trend. The abundances of Halobacteria, Halobacteriales, and Halobacteriaceae, which are biomarkers for distinguishing fecal archaea in the TMR from the FTMR, were substantially greater in the feces of dairy cows that consumed the TMR than in those that consumed the FTMR. Therefore, FTMR can improve the milk fat content, total tract apparent feed digestibility efficiency, and diversity of archaea in the feces. Additionally, this work provides a theoretical basis for the feasibility of FTMR feeding for dairy cows.
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Affiliation(s)
- Lijun Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Sanjun Jin
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Ping Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Xinxin Li
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Chaoqi Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Siying Sun
- Institute of International Education, Henan Agricultural University, Zhengzhou, China
| | - Guangning Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Juan Chang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Qingqiang Yin
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Haiyang Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Qun Zhu
- Henan Delin Biological Products Co., Ltd., Xinxiang, China
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Yang J, Zhao S, Lin B. Effect of commercial fibrolytic enzymes application to normal- and slightly lower energy diets on lactational performance, digestibility and plasma nutrients in high-producing dairy cows. Front Vet Sci 2024; 11:1302034. [PMID: 38764855 PMCID: PMC11099995 DOI: 10.3389/fvets.2024.1302034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 03/28/2024] [Indexed: 05/21/2024] Open
Abstract
The inclusion of fibrolytic enzymes in the diet is believed to have positive effects on animal production. Hence, the objective of this study was to investigate the impact of supplementing diets with a commercial fibrolytic enzyme preparation (Vistamax; mixture of xylanase and cellulase) derived from Trichoderma reesei on lactational performance, digestibility, and plasma nutrient levels in high-producing dairy cows. Two dietary energy levels were considered: a normal energy diet (metabolizable energy = 2.68 Mcal/kg) and a slightly lower energy diet (metabolizable energy = 2.55 Mcal/kg). A total of 120 lactating Holstein cows (parity = 2; Days in Milk = 113 ± 23) were randomly assigned to four treatment groups using a 2 * 2 factorial arrangement. The dietary treatments consisted of: (1) normal energy diet without enzyme supplementation (NL); (2) normal energy diet with enzyme supplementation (NLE); (3) slightly lower energy diet without enzyme supplementation (SL); and (4) slightly lower energy diet with enzyme supplementation (SLE). The amount of enzyme added to the diets was determined based on previous in vitro studies and supplier recommendations. The enzyme and premix were mixed prior to the preparation of the total mixed ration, and the trial lasted for a duration of 42 days. The results indicated that the application of the fibrolytic enzyme did not have a significant effect on dry matter intake (DMI), but it did enhance the digestibility of dry matter (DM), neutral detergent fiber (NDF), potentially digestible NDF (pdNDF), organic matter (OM), milk production, milk urea nitrogen (MUN), and blood urea nitrogen (BUN). On the other hand, the slightly lower energy diet resulted in a decrease in DMI, milk production, milk protein yield, plasma free amino acids (FAA), and an increase in plasma B-hydroxybutyrate (BHBA). In conclusion, the inclusion of the fibrolytic enzyme in the diets of dairy cows led to improvements in the digestibility of DM, NDF, pdNDF, OM, milk production, and feed efficiency. Furthermore, the application of the enzyme to the slightly lower energy diet resulted in milk production levels comparable to those observed in cows fed the untreated normal energy diet.
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Affiliation(s)
- Jiahua Yang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Shengguo Zhao
- Key Laboratory of Quality & Safety Control for Milk and Dairy Products of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bo Lin
- College of Animal Science and Technology, Guangxi University, Nanning, China
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Zhao P, Liu X, Feng L, Jiang WD, Wu P, Liu Y, Ren HM, Jin XW, Yang J, Zhou XQ. New perspective on mechanism in muscle toxicity of ochratoxin A: Model of juvenile grass carp (Ctenopharyngodon idella). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 263:106701. [PMID: 37776711 DOI: 10.1016/j.aquatox.2023.106701] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/13/2023] [Accepted: 09/18/2023] [Indexed: 10/02/2023]
Abstract
Ochratoxin A (OTA) is a common fungal toxin that pollutes raw materials of aquatic feeds (such as corn, soybean meal, and wheat). This study explored the effects of OTA through diet on muscle toxicity in juvenile grass carp (Ctenopharyngodon idella). The following results were obtained for the muscle. (1) With an increase in dietary OTA, the residue of OTA in muscle increased, muscle fiber diameter and density decreased, and even muscle fiber breakage. (2) OTA caused oxidative stress by downregulating GPx1 (a, b) and Trx via inhibited the PGC1-α/Nrf2 signaling pathway. (3) OTA exacerbated endoplasmic reticulum stress in the muscle by causing endoplasmic reticulum expansion (results of transmission electron microscopy) and upregulating the expression of GRP78, eIF2α, ATF6, PERK, and CHOP. (4) OTA reduced muscle fiber diameter by inhibiting protein synthesis (AKT, TOR, and S6K1) and promoting the mRNA expression of protein degradation-related genes (MURF1, MAFBX, and FoxO3a), as well as by reducing AKT and promoting the immunofluorescence expression of FoxO3. (5) OTA inhibits collagen deposition by downregulating TGF-β1, TGF-βR1, Smad2, Smad3, Smad4, CTGF, TIMP, PHD, and LOX mRNA expressions as well as the CTGF immunofluorescence expression. Moreover, based on the GSH and collagen content contents, the upper safe dose for OTA-induced toxicity was 963.6 and 1129.6 μg/kg diet, respectively. Using the example of OTA, our research has provided new insights that raise concerns about the quality of aquatic products by exploring muscle toxicity caused by mycotoxins.
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Affiliation(s)
- Piao Zhao
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Xin Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Lin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China
| | - Wei-Dan Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China
| | - Pei Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China
| | - Yang Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China
| | - Hong-Mei Ren
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China
| | - Xiao-Wan Jin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China
| | - Juan Yang
- Tongwei Co., Ltd., Chengdu, China, Healthy Aquaculture Key Laboratory of Sichuan Province, Sichuan 610041, China
| | - Xiao-Qiu Zhou
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Key Laboratory of Sichuan Province, Ministry of Education, Ministry of Agriculture and Rural Affairs, Sichuan 611130, China.
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He T, Long S, Yi G, Wang X, Li J, Wu Z, Guo Y, Sun F, Liu J, Chen Z. Heating Drinking Water in Cold Season Improves Growth Performance via Enhancing Antioxidant Capacity and Rumen Fermentation Function of Beef Cattle. Antioxidants (Basel) 2023; 12:1492. [PMID: 37627487 PMCID: PMC10451963 DOI: 10.3390/antiox12081492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/22/2023] [Accepted: 07/23/2023] [Indexed: 08/27/2023] Open
Abstract
The research aimed to investigate the suitable drinking water temperature in winter and its effect on the growth performance, antioxidant capacity, and rumen fermentation function of beef cattle. A total of 40 beef cattle (640 ± 19.2 kg) were randomly divided into five treatments with eight cattle in each treatment raised in one pen according to initial body weight. Each treatment differed only in the temperature of drinking water, including the room-temperature water and four different heat water groups named RTW, HW_1, HW_2, HW_3, and HW_4. The measured water temperatures were 4.39 ± 2.546 °C, 10.6 ± 1.29 °C, 18.6 ± 1.52 °C, 26.3 ± 1.70 °C, and 32.5 ± 2.62 °C, respectively. The average daily gain (ADG) showed a significant linear increase during d 0 to 60 and a quadratic increase during d 31 to 60 with rising water temperature (p < 0.05), and the highest ADG of 1.1911 kg/d was calculated at a water temperature of 23.98 °C (R2 = 0.898). The average rectal temperature on d 30 (p = 0.01) and neutral detergent fiber digestibility (p < 0.01) increased linearly with increasing water temperature. Additionally, HW_2 reduced serum triiodothyronine, thyroxine, and malondialdehyde (p < 0.05), and increased serum total antioxidant capacity (p < 0.05) compared with RTW. Compared with HW_2, RTW had unfavorable effects on ruminal propionate, total volatile fatty acids, and cellulase concentrations (p < 0.05), and lower relative mRNA expression levels of claudin-4 (p < 0.01), occludin (p = 0.02), and zonula occludens-1 (p = 0.01) in the ruminal epithelium. Furthermore, RTW had a higher abundance of Prevotella (p = 0.04), Succinivibrionaceae_UCG-002 (p = 0.03), and Lachnospiraceae_UCG-004 (p = 0.03), and a lower abundance of Bifidobacteriaceae (p < 0.01) and Marinilabiliaceae (p = 0.05) in rumen compared to HW_2. Taken together, heated drinking water in cold climates could positively impact the growth performance, nutrient digestibility, antioxidant capacity, and rumen fermentation function of beef cattle. The optimal water temperature for maximizing ADG was calculated to be 23.98 °C under our conditions. Ruminal propionate and its producing bacteria including Prevotella, Succinivibrionaceae, and Lachnospiraceae might be important regulators of rumen fermentation of beef cattle drinking RTW under cold conditions.
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Affiliation(s)
- Tengfei He
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Shenfei Long
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Guang Yi
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Xilin Wang
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Jiangong Li
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Zhenlong Wu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Yao Guo
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Fang Sun
- Institute of Animal Huabandry, Hei Longjiang Academy of Agricultural Sciences, Harbin 150086, China;
| | - Jijun Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
| | - Zhaohui Chen
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (T.H.); (S.L.); (G.Y.); (X.W.); (J.L.); (Z.W.); (Y.G.); (J.L.)
- State Key Laboratory of Animal Nutrition and Feeding, Beijing 100193, China
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Zhang Y, Zhou XQ, Jiang WD, Wu P, Liu Y, Ren HM, Jin XW, Feng L. Vitamin D Promotes Mucosal Barrier System of Fish Skin Infected with Aeromonas hydrophila through Multiple Modulation of Physical and Immune Protective Capacity. Int J Mol Sci 2023; 24:11243. [PMID: 37511003 PMCID: PMC10379486 DOI: 10.3390/ijms241411243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/14/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
The vertebrate mucosal barrier comprises physical and immune elements, as well as bioactive molecules, that protect organisms from pathogens. Vitamin D is a vital nutrient for animals and is involved in immune responses against invading pathogens. However, the effect of vitamin D on the mucosal barrier system of fish, particularly in the skin, remains unclear. Here, we elucidated the effect of vitamin D supplementation (15.2, 364.3, 782.5, 1167.9, 1573.8, and 1980.1 IU/kg) on the mucosal barrier system in the skin of grass carp (Ctenopharyngodon idella) challenged with Aeromonas hydrophila. Dietary vitamin D supplementation (1) alleviated A. hydrophila-induced skin lesions and inhibited oxidative damage by reducing levels of reactive oxygen species, malondialdehyde, and protein carbonyl; (2) improved the activities and transcription levels of antioxidant-related parameters and nuclear factor erythroid 2-related factor 2 signaling; (3) attenuated cell apoptosis by decreasing the mRNA and protein levels of apoptosis factors involved death receptor and mitochondrial pathway processes related to p38 mitogen-activated protein kinase and c-Jun N-terminal kinase signaling; (4) improved tight junction protein expression by inhibiting myosin light-chain kinase signaling; and (5) enhanced immune barrier function by promoting antibacterial compound and immunoglobulin production, downregulating pro-inflammatory cytokine expression, and upregulating anti-inflammatory cytokines expression, which was correlated with nuclear factor kappa B and the target of rapamycin signaling pathways. Vitamin D intervention for mucosal barrier via multiple signaling correlated with vitamin D receptor a. Overall, these results indicate that vitamin D supplementation enhanced the skin mucosal barrier system against pathogen infection, improving the physical and immune barriers in fish. This finding highlights the viability of vitamin D in supporting sustainable aquaculture.
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Affiliation(s)
- Yao Zhang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
| | - Xiao-Qiu Zhou
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
| | - Wei-Dan Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
| | - Pei Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
| | - Yang Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
| | - Hong-Mei Ren
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
| | - Xiao-Wan Jin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
| | - Lin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611100, China
- Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611100, China
- Key Laboratory for Animal Disease-Resistant Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611100, China
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Dong L, Zhao L, Li B, Gao Y, Yan T, Lund P, Liu Z, Diao Q. Dietary supplementation with xylooligosaccharides and exogenous enzyme improves milk production, energy utilization efficiency and reduces enteric methane emissions of Jersey cows. J Anim Sci Biotechnol 2023; 14:71. [PMID: 37303054 DOI: 10.1186/s40104-023-00873-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/02/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND Sustainable strategies for enteric methane (CH4) mitigation of dairy cows have been extensively explored to improve production performance and alleviate environmental pressure. The present study aimed to investigate the effects of dietary xylooligosaccharides (XOS) and exogenous enzyme (EXE) supplementation on milk production, nutrient digestibility, enteric CH4 emissions, energy utilization efficiency of lactating Jersey dairy cows. Forty-eight lactating cows were randomly assigned to one of 4 treatments: (1) control diet (CON), (2) CON with 25 g/d XOS (XOS), (3) CON with 15 g/d EXE (EXE), and (4) CON with 25 g/d XOS and 15 g/d EXE (XOS + EXE). The 60-d experimental period consisted of a 14-d adaptation period and a 46-d sampling period. The enteric CO2 and CH4 emissions and O2 consumption were measured using two GreenFeed units, which were further used to determine the energy utilization efficiency of cows. RESULTS Compared with CON, cows fed XOS, EXE or XOS + EXE significantly (P < 0.05) increased milk yield, true protein and fat concentration, and energy-corrected milk yield (ECM)/DM intake, which could be reflected by the significant improvement (P < 0.05) of dietary NDF and ADF digestibility. The results showed that dietary supplementation of XOS, EXE or XOS + EXE significantly (P < 0.05) reduced CH4 emission, CH4/milk yield, and CH4/ECM. Furthermore, cows fed XOS demonstrated highest (P < 0.05) metabolizable energy intake, milk energy output but lowest (P < 0.05) of CH4 energy output and CH4 energy output as a proportion of gross energy intake compared with the remaining treatments. CONCLUSIONS Dietary supplementary of XOS, EXE or combination of XOS and EXE contributed to the improvement of lactation performance, nutrient digestibility, and energy utilization efficiency, as well as reduction of enteric CH4 emissions of lactating Jersey cows. This promising mitigation method may need further research to validate its long-term effect and mode of action for dairy cows.
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Affiliation(s)
- Lifeng Dong
- Institute of Feed Research/Sino-US Joint Lab On Nutrition and Metabolism of Ruminant, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Lei Zhao
- Institute of Feed Research/Sino-US Joint Lab On Nutrition and Metabolism of Ruminant, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- School of Agriculture, Ningxia University, Yinchuan, 750000, China
| | - Bowei Li
- College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China
| | - Yanhua Gao
- College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China
| | - Tianhai Yan
- Agri-Food and Biosciences Institute, Hillsborough, Co. Down BT 26 6DR, UK
| | - Peter Lund
- Department of Animal Science, Aarhus University, AU Foulum, PO Box 50, 8830, Tjele, Denmark
| | - Zhuofan Liu
- Institute of Feed Research/Sino-US Joint Lab On Nutrition and Metabolism of Ruminant, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qiyu Diao
- Institute of Feed Research/Sino-US Joint Lab On Nutrition and Metabolism of Ruminant, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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Yi Q, Wang P, Tang H, Yu M, Zhao T, Sheng Z, Luo H. Fermentation Quality, In Vitro Digestibility, and Aerobic Stability of Ensiling Spent Mushroom Substrate with Microbial Additives. Animals (Basel) 2023; 13:ani13050920. [PMID: 36899777 PMCID: PMC10000080 DOI: 10.3390/ani13050920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/31/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
This experiment investigated the effects of lactic acid bacteria and cellulase on the fermentation quality, in vitro digestibility, and aerobic stability of Flammulina velutipes spent mushroom substrate silage (F-silage) and Pleurotus eryngii spent mushroom substrate silage (P-silage). Silage treatments included groups without any additives (control), with lactic acid bacteria (L), with cellulase (E), and with lactic acid bacteria and cellulase (M). Data analysis was performed using independent sample t-test and analysis of variance. After 45 days of ensiling, the pH in F-silage and P-silage from the L, E, and M groups were lower than those in the control group (p < 0.05). The pH, acetic acid (AA), and propionic acid (PA) levels in P-silage were lower than those in F-silage, and the LA content in P-silage was higher than that in F-silage (p < 0.05). Compared with the control, the E treatment increased in vitro neutral detergent fibre digestibility (IVNDFD) and in vitro acid detergent fibre digestibility (IVADFD) in F-silage and P-silage (p < 0.05). The aerobic stability of F-silage inoculated with L increased (p < 0.05) by 24 h compared to the control. The aerobic stability of P-silage inoculated with M increased (p < 0.05) by 6 h compared to the control. The improvement in fermentation quality and aerobic stability is extremely large in terms of applying M in F-silage and P-silage. The E is effective in improving the in vitro digestibility of P-silage. The research results provide a theoretical basis for the production of high-quality spent mushroom substrate fermented feed.
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Affiliation(s)
- Qixuan Yi
- Department of Animal Science, Jilin University, Changchun 130062, China
| | - Peng Wang
- Department of Animal Science, Jilin University, Changchun 130062, China
- Correspondence:
| | - Hongyu Tang
- Department of Animal Science, Jilin University, Changchun 130062, China
| | - Meng Yu
- Department of Animal Science, Jilin University, Changchun 130062, China
| | - Tianyue Zhao
- Department of Animal Science, Jilin University, Changchun 130062, China
| | - Ziyang Sheng
- Sanya Institute of China Agricultural University, Sanya 572025, China
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Hailing Luo
- Sanya Institute of China Agricultural University, Sanya 572025, China
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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Yang J, Refat B, Guevara-Oquendo VH, Yu P. Lactational performance, feeding behavior, ruminal fermentation and nutrient digestibility in dairy cows fed whole-plant faba bean silage-based diet with fibrolytic enzyme. Animal 2022; 16:100606. [PMID: 35970105 DOI: 10.1016/j.animal.2022.100606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/02/2022] [Accepted: 07/11/2022] [Indexed: 11/26/2022] Open
Abstract
Whole-plant faba bean silage has a high content in indigestible fiber. Improvement of fiber digestibility of faba bean silage would benefit animal production. However, there is no study on pretreating fibrolytic enzyme in whole-plant faba bean silage-based diet for dairy cows on animal performance. The objectives of this study were to evaluate the effects of pretreating whole-plant faba bean silage-baseddiet with fibrolytic enzyme (a mixture of xylanase and cellulase; AB Vista, UK) derived from Trichoderma reesei(FETR) on lactational performance, digestibility, ruminal fermentation characteristics, and feeding behavior of dairy cows. The animal trial was conducted using eight lactating Holstein cows (BW = 710 ± 44 kg and Days in Milk (DIM) = 121 ± 17 days) with four levels of FETR (0, 0.5, 0.75, and 1.0 mL of FETR/kg DM of silage) in a replicated Latin square design. These enzyme treatments were selected based on the previous in situ and in vitro findings that showed positive responses to the whole-plant faba bean silage. The enzyme treatments were directly applied on the silage prior to mixing process. The total mixed rations contained 31% of faba bean silage, 14% of grass hay, 3.5% of straw, 30% of barley and corn grain and 21.5% of concentrate. There was no significant difference of applying FETR on nutrient intake (P > 0.05) except for CP intake, which was reduced in FETR group compared to control (P < 0.01, 4.4 vs 4.54 kg/d). There was a linear effect found in NDF digestibility when treated with FETR, where maximum improvement was achieved with 0.5 mL of FETR application. The milk fat yield, percentage of milk fat and fat-corrected milk were linearly affected by the increasing level of enzyme. The cows fed a diet supplemented with enzymes tended to have a lower milk fat. Feed efficiency linearly responded to incremental levels of FETR. There was no enzyme effect on feeding behavior and nitrogen balance and utilization. Results from this study indicated that supplementing fibrolytic enzyme on whole-plant faba bean silage diets for dairy cows improved lactational performance, intake and digestibility with 0.5 mL of FETR application. However, adding higher enzyme level resulted in negative effects on animal performance.
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Affiliation(s)
- Jenchieh Yang
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Basim Refat
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Victor H Guevara-Oquendo
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Peiqiang Yu
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada.
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Liu ZK, Li Y, Zhao CC, Liu ZJ, Wang LM, Li XY, Pellikaan WF, Yao JH, Cao YC. Effects of a combination of fibrolytic and amylolytic enzymes on ruminal enzyme activities, bacterial diversity, blood profile and milk production in dairy cows. Animal 2022; 16:100595. [PMID: 35907385 DOI: 10.1016/j.animal.2022.100595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 11/20/2022] Open
Abstract
We hypothesised that adding a combination of fibrolytic and amylolytic enzymes to the diet of early-lactation dairy cows would improve rumen enzyme activity and bacterial diversity, promote energy metabolism, and benefit milk production in cows. Twenty multiparous early-lactation (90 ± 5 d) Holstein cows with similar body conditions were randomly allocated to control (CON, n = 10) and experimental (EXP, n = 10) groups in a completely randomised single-factor design. The CON was fed only a basal total mixed ration diet, and the diet of the EXP was supplemented with a combination of fibrolytic and amylolytic enzymes at 70 g/cow/d (cellulase 3 500 CU/g, xylanase 2 000 XU/g, β-glucanase 17 500 GU/g, and amylase 37 000 AU/g). The experiment lasted 28 days, with 21 days for adaptation and 7 days for sampling. Enzyme addition increased the activity levels of α-amylase and xylanase, and the ammonia-N concentration (P < 0.05) tended to increase the activity of β-glucanase (P = 0.08) in rumen fluid. However, there was no significant difference in the rumen bacterial richness and diversity, phylum (richness > 0.1%) or genus (richness > 1%) composition between the CON and EXP groups (P > 0.05). A tendency of difference was found between CON and EXP (R = 0.22, P = 0.098) in principal component analysis. Ten genera showed different abundances across the CON and EXP groups (linear discriminant analysis effect size, linear discriminant analysis > 2). EXP increased the ratio of albumin to globulin and the concentrations of total cholesterol and low-density lipoprotein cholesterol (P < 0.05) and tended to increase triglycerides (P = 0.09) in blood. Milk yield, 3.5% fat-corrected milk yield and energy-corrected milk yield increased with enzyme supplementation (P < 0.05). The production levels of milk fat and lactose increased, but the percentage of solids, not fat and protein, decreased in EXP (P < 0.05). Although the DM intake was not affected, the feed efficiency tended to increase (P = 0.07) in EXP. In conclusion, dietary supplementation with a mixture of fibrolytic and amylolytic enzymes on multiparous early-lactation dairy cows increased α-amylase and xylanase activity levels in rumen fluid, enhanced milk performance and tended to improve the feed efficiency in cows.
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Affiliation(s)
- Z K Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Y Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - C C Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Z J Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - L M Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - X Y Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - W F Pellikaan
- Animal Nutrition Group, Wageningen University & Research, Wageningen, the Netherlands
| | - J H Yao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Y C Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China.
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10
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Martins LF, Oh J, Harper M, Melgar A, Räisänen SE, Chen X, Nedelkov K, Karnezos TP, Hristov AN. Effects of an exogenous enzyme preparation extracted from a mixed culture of Aspergillus spp. on lactational performance, metabolism, and digestibility in primiparous and multiparous cows. J Dairy Sci 2022; 105:7344-7353. [PMID: 35879158 DOI: 10.3168/jds.2022-21990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/04/2022] [Indexed: 11/19/2022]
Abstract
The objective of this study was to investigate the effects of an exogenous enzyme preparation from Aspergillus oryzae and Aspergillus niger on lactational performance of dairy cows. Forty-eight Holstein cows (32 primiparous and 16 multiparous) averaging (± SD) 36.3 ± 8.7 kg/d milk yield and 141 ± 52 d in milk were enrolled in a 10-wk randomized complete block design experiment (total of 24 blocks) and assigned to 1 of 2 treatments: basal diet, no enzyme supplementation (CON) or the basal diet supplemented with 4.2 g/kg dry matter intake (DMI) of an exogenous enzyme preparation containing amylolytic and fibrolytic activities (ENZ). After a 2-wk covariate period, premixes with the enzyme preparation or control were top-dressed daily by mixing with approximately 500 g of total mixed ration. Production data were collected daily and averaged by week. Milk samples were collected every other week, and milk composition was averaged by week. Blood, fecal, and urine samples were collected over 2 consecutive days at 0, 4, 8, 12, and 36 h after feeding during the last week of the experiment. Compared with CON, cows fed ENZ tended to increase DMI and had increased milk concentrations of true protein, lactose, and other solids. Milk fat content tended to be higher in CON cows. A treatment × parity interaction was found for some of the production variables. Primiparous cows receiving ENZ had greater yields of milk, energy-corrected milk, milk true protein, and lactose compared with CON primiparous cows; these production variables did not differ between treatments for multiparous cows. Intake and total-tract digestibility of nutrients did not differ between treatments. Concentrations of blood glucose and total fatty acids were not affected by ENZ supplementation, but β-hydroxybutyrate concentration tended to be greater in ENZ cows. Overall, the exogenous enzyme preparation used in this study increased milk protein and lactose concentrations in all cows, and milk production in primiparous but not multiparous cows. The differential production response between primiparous and multiparous cows was likely a result of a greater increase in DMI with ENZ supplementation in the younger animals.
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Affiliation(s)
- L F Martins
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802
| | - J Oh
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802; Cargill Animal Nutrition, Seongnam, South Korea 13630.
| | - M Harper
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802; CSA Animal Nutrition, Mill Creek, PA 17060
| | - A Melgar
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802; Agricultural Innovation Institute of Panama (IDIAP), City of Knowledge, Panama 07144
| | - S E Räisänen
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802; Department of Agricultural Sciences, University of Helsinki, PO Box 28, FI-00014, Finland
| | - X Chen
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802; Livestock Production Science Branch, Agri-Food Biosciences Institute, Hillsborough, Co. Down, BT26 6DR, United Kingdom
| | - K Nedelkov
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802; Faculty of Veterinary Medicine, Trakia University, Stara Zagora, Bulgaria 6000
| | | | - A N Hristov
- Department of Animal Sciences, The Pennsylvania State University, University Park 16802.
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Callegaro S, Niero G, Penasa M, Finocchiaro R, Invernizzi G, Cassandro M. Greenhouse gas emissions, dry matter intake and feed efficiency of young Holstein bulls. ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2071178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Simone Callegaro
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, Università di Padova, Italy
| | - Giovanni Niero
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, Università di Padova, Italy
| | - Mauro Penasa
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, Università di Padova, Italy
| | - Raffaella Finocchiaro
- Associazione Nazionale Allevatori della Razza Frisona, Bruna e Jersey Italiana, Cremona, Italy
| | - Guido Invernizzi
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare “Carlo Cantoni”, Università di Milano, Milano, Italy
| | - Martino Cassandro
- Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente, Università di Padova, Italy
- Associazione Nazionale Allevatori della Razza Frisona, Bruna e Jersey Italiana, Cremona, Italy
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Strong PJ, Self R, Allikian K, Szewczyk E, Speight R, O'Hara I, Harrison MD. Filamentous fungi for future functional food and feed. Curr Opin Biotechnol 2022; 76:102729. [PMID: 35525176 DOI: 10.1016/j.copbio.2022.102729] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/16/2022] [Accepted: 03/29/2022] [Indexed: 11/19/2022]
Abstract
In this review, we offer our opinion of current and expected trends regarding the use of mushrooms and mycelia in food and feed. Mushrooms have provided food for millennia and production methods and species diversity have recently expanded. Beyond mushrooms, cultured fungal mycelia are now harvested as a primary product for food. Mushrooms and mycelia provide dietary protein, lipids and fatty acids, vitamins, fibre, and flavour, and can improve the organoleptic properties of processed foods (including meat analogues). Further, they are often key ingredients in nutritional or therapeutic supplements because of diverse specialised metabolites. Mycelia can also improve feed conversion efficiency, gut health, and wellbeing in livestock. New molecular tools, coupled with quality genetic data, are improving production technologies, enabling the synthesis of specialised metabolites, and creating new processing and valorisation opportunities. Production systems for submerged culture are capital intensive, but investment is required considering the scale of the protein market.
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Affiliation(s)
- Peter James Strong
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; School of Biology and Environmental Sciences, Faculty of Science, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, Queensland 4000, Australia.
| | - Rachel Self
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; School of Biology and Environmental Sciences, Faculty of Science, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia
| | - Kathrine Allikian
- Nourish Ingredients, Unit 2, 6 Pelle Street, Mitchell, Canberra, Australian Capital Territory 2911, Australia
| | - Edyta Szewczyk
- Bolt Threads, 5858 Horton St, Suite 400, Emeryville, CA 94608, United States
| | - Robert Speight
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; School of Biology and Environmental Sciences, Faculty of Science, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, Queensland 4000, Australia
| | - Ian O'Hara
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, Queensland 4000, Australia; School of Mechanical, Medical and Process Engineering, Faculty of Engineering, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia
| | - Mark D Harrison
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia; School of Biology and Environmental Sciences, Faculty of Science, Queensland University of Technology, 2 George Street, Brisbane, Queensland 4001, Australia
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13
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Effects of Exogenous Fibrolytic Enzyme Derived from Trichoderma reesei on Rumen Degradation Characteristics and Degradability of Low-Tannin Whole Plant Faba Bean Silage in Dairy Cows. DAIRY 2022. [DOI: 10.3390/dairy3020023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The objectives of this study were to (1) determine the effect of exogenous fibrolytic enzyme derived from Trichoderma reesei on dry matter (DM) and neutral detergent fibre (NDF) degradability of whole plant faba bean silage (Snowbird), (2) evaluate the effects of fibrolytic enzyme (FETR) on DM and NDF degradation kinetics of whole plant faba bean silage, and (3) compare the difference between in the vitro approach (DaisyII incubation method) and the in situ assay-biological approach (nylon bag technique) in the determination of degradability of dry matter (DMD) and neutral detergent fibre (NDFD). The fibrolytic enzyme from Trichoderma reesei was a mixture of xylanase and cellulase. The whole plant faba bean silage was treated with seven doses of fibrolytic enzyme, with 0 as a control and 0.25, 0.5, 0.75, 1, 1.25 and 1.5 mL of FETR/kg DM of silage. The results obtained from the in situ method show that fibrolytic enzyme cubically (p < 0.05) affected DMD and quadratically (p < 0.01) affected NDFD with increasing level of enzyme application. In vitro DM and NDF degradability were quadratically and cubically (p < 0.01) affected by the increasing dosage of enzyme. Correlation analysis between the in situ assay-biological approach and the In vitro DaisyII approach showed a strong correlation (r = 0.98, p < 0.01) on overall DMD and also a satisfactory relationship (r = 0.84, p < 0.01) was found on overall NDFD. The enzyme application showed a great impact on NDF rumen degradation kinetics by decreasing the undegradable fraction and increasing the potential degradable fraction and the effective degradable content of fiber. The washable (W) and potential degradation fraction (D) were linearly (p = 0.05) increased by the enzyme treatments. Therefore, the undegradable fraction was linearly decreased (p = 0.05) with increasing dosage of enzyme. Both bypass (BNDF) and effective degradable NDF (EDNDF) were cubically (p = 0.05) affected by fibrolytic enzyme. In conclusion, the exogenous fibrolytic enzyme derived from Trichoderma reesei highly impacted rumen degradation characteristics and degradability of whole plant faba bean silage and could be used to improve fibre digestion of whole plant faba silage in dairy cows.
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Savela MFB, Noschang JP, Barbosa AA, Feijó JDO, Rabassa VR, Schmitt E, Pino FABD, Corrêa MN, Brauner CC. Supplementation of a dried, fungal fermentation product with fibrolytic enzymatic activity in the diet of dairy cows on feeding behavior, metabolic profile, milk yield, and milk composition. Livest Sci 2022. [DOI: 10.1016/j.livsci.2022.104945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Santos GCDL, Gonzaga Neto S, Bezerra LR, de Medeiros AN, de Carvalho FFR, de Oliveira JS. Intake and apparent digestibility of dry matter, milk production, and composition of cows fed with diets containing oilseed cakes: A meta-analysis. Anim Sci J 2022; 93:e13758. [PMID: 35932203 DOI: 10.1111/asj.13758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 04/11/2022] [Accepted: 05/09/2022] [Indexed: 11/26/2022]
Abstract
Oilseed cakes can partially replace corn or soy used in the diet without losing animal performance. The objective was to carry out a meta-analysis and principal component analysis to evaluate the effects of cakes on the intake and apparent digestibility coefficient (ADC) of dry matter (DM) and milk production and composition in lactating dairy cows. The data set used in the meta-analysis came from 51 studies published between 2009 and 2019, which resulted in 119 studies with 18 types of cakes evaluated in 1350 cows. Cows fed with cakes increased dry matter intake (DMI) by 0.366 kg d-1 (P < 0.001) and DMI as a function of the animal's body weight by 0.103% (P < 0.0001) compared with the diet without cake. The milk protein content decreased by 0.050% (P < 0.010). The contents of neutral detergent fiber (NDF) (26%-%) and ether extract (EE) (3%-7%) of the cake diets did not affect ADCDM. Cakes with contents between 10% and 30% can replace corn or soy in the diet without affecting milk production, components (fat, protein, and lactose), and contents (fat and lactose), but it can reduce the milk protein content of milk.
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16
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Palm oil cake in milk production and quality of dairy cows: Systematic review, meta-analysis and principal component analysis. Livest Sci 2021. [DOI: 10.1016/j.livsci.2021.104760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Refat B, Christensen DA, Ismael A, Feng X, Rodríguez-Espinosa ME, Guevara-Oquendo VH, Yang J, AlZahal O, Yu P. Evaluating the effects of fibrolytic enzymes on rumen fermentation, omasal nutrient flow, and production performance in dairy cows during early lactation. CANADIAN JOURNAL OF ANIMAL SCIENCE 2021. [DOI: 10.1139/cjas-2020-0062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was performed to evaluate the effects of pre-treating a barley-silage-based diet with an exogenous fibrolytic enzyme derived from Trichoderma reesei (FETR, a mixture of xylanase and cellulase) on lactation performance, omasal nutrient flow and digestibility, rumen fermentation characteristics, and rumen pH profile in Holstein dairy cows during early lactation. The dairy trial was conducted using nine Holstein dairy cows (averaging 46 ± 24 days in milk and 697 ± 69 kg body weight, six cows were fitted with a rumen cannula, and three were non-cannulated). Two groups of cows were randomly assigned to each of the dietary treatments in a crossover design: control (without FETR supplementation) and supplemented [with 0.75 mL of FETR·kg−1 dry matter (DM) of the diet based on our previous study]. The application of FETR tended to decrease the DM intake compared with control. There were no effects of FETR (P > 0. 10) on omasal nutrient flow and digestibility, rumen fermentation characteristics, and rumen pH profile. In conclusion, this study lacks evidence that the fibrolytic enzyme (at a level of 0.75 mL of FETR·kg−1 DM) can affect nutrient digestibility, ruminal fermentation, and the performance of early-lactation cows. Further study with larger animal trials are needed.
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Affiliation(s)
- Basim Refat
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - David A. Christensen
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Aya Ismael
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Xin Feng
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - María E. Rodríguez-Espinosa
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Victor H. Guevara-Oquendo
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | - Jenchieh Yang
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
| | | | - Peiqiang Yu
- Department of Animal and Poultry Science, College of Agricultural and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, SK S7N 5A8, Canada
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Lunsin R, Pilajun R, Cherdthong A, Wanapat M, Duanyai S, Sombatsri P. Influence of fibrolytic enzymes in total mixed ration containing urea-molasses-treated sugarcane bagasse on the performance of lactating Holstein-Friesian crossbred cows. Anim Sci J 2021; 92:e13652. [PMID: 34717034 DOI: 10.1111/asj.13652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/16/2021] [Accepted: 09/23/2021] [Indexed: 11/28/2022]
Abstract
The aim of this study was to determine the effect of different levels of fibrolytic enzyme on nutrient utilization and milk production in dairy cows. Four multiparous early-to-mid-lactation Holstein-Friesian crossbred cows were randomly allocated in a 4 × 4 Latin square design. Cows were fed a balanced total mixed ration (TMR) on a dry matter (DM) basis containing 0, 1.2, 2.4, and 3.6 g/kg DM of fibrolytic enzyme in TMR, where the TMR comprises 60% concentrate supplemented with a fibrolytic enzyme at 0, 2, 4, and 6 g/kg DM of concentrate, and 40% urea-molasses-treated sugarcane bagasse (UMSB) was used as a roughage source. Fibrolytic enzyme supplementation in TMR containing UMSB did not affect dry matter intake (DMI) of dairy cows (p > 0.05). There was a quadratic effect of fibrolytic enzyme levels on the digestibility of DM, organic matter (OM), neutral detergent fiber (NDF), and acid detergent fiber (ADF) (p < 0.05), and the maximal response was reached at 1.2-2.4 g/kg DM of fibrolytic enzyme added in the TMR. Furthermore, 3.5% fat-corrected milk, milk fat, total volatile fatty acids, and propionic acid were greater in a cow fed with 1.2-2.4 g/kg DM of fibrolytic enzyme, resulting in a lower ratio of acetic acid to propionic acid (p < 0.05). In conclusion, adding a fibrolytic enzyme in TMR containing UMSB improved nutrient utilization, rumen fermentation, and milk production of lactating dairy cows.
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Affiliation(s)
- Ratchataporn Lunsin
- Program in Animal Science, Faculty of Agriculture, Ubon Ratchathani Rajabhat University, Ubon Ratchathani, Thailand
| | - Ruangyote Pilajun
- Department of Animal Science, Faculty of Agriculture, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - Anusorn Cherdthong
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Metha Wanapat
- Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - Somporn Duanyai
- Program in Animal Science, Faculty of Agriculture, Ubon Ratchathani Rajabhat University, Ubon Ratchathani, Thailand
| | - Prapatsorn Sombatsri
- Program in Agriculture Science, Faculty of Agriculture, Ubon Ratchathani Rajabhat University, Ubon Ratchathani, Thailand
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Abstract
Enzymes are widely used in the food industry. Their use as a supplement to the raw material for animal feed is a current research topic. Although there are several studies on the application of enzyme additives in the animal feed industry, it is necessary to search for new enzymes, as well as to utilize bioinformatics tools for the design of specific enzymes that work in certain environmental conditions and substrates. This will allow the improvement of the productive parameters in animals, reducing costs and making the processes more efficient. Technological needs have considered these catalysts as essential in many industrial sectors and research is constantly being carried out to optimize their use in those processes. This review describes the enzymes used in animal nutrition, their mode of action, their production and new sources of production as well as studies on different animal models to evaluate their effect on the productive performance intended for the production of animal feed.
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Lei Y, Hannoufa A, Yu P. Overexpression of miR156 and Silencing SPL6RNAi and SPL13RNAi Genes in Medicago sativa on the Changes of Carbohydrate Physiochemical, Fermentation, and Nutritional Profiles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14540-14548. [PMID: 33232138 DOI: 10.1021/acs.jafc.0c02508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study aimed to explore the comparative effects of overexpressing miR156 with individually silencing SPL6RNAi and SPL13RNAi genes on carbohydrate physiochemical, fermentation, and nutritional profiles of alfalfa (Medicago sativa). Three sub-genotypes of miR156 overexpressed (miR156 OE), SPL6RNAi, and SPL13RNAi grown with the wild type (WT) in a greenhouse were harvested 3 times at an early vegetative stage. Samples were freeze-dried, ground, and analyzed for carbohydrate nutritional profiles in terms of chemical composition, CNCPS fractions, energetic values, in vitro degradation, and fermentation characteristics. Results showed that miR156 OE had lower fiber and higher energy compared to all other genotypes. Moreover, miR156 OE had higher starch compared to SPL13RNAi and higher DM degradation compared to WT and SPL13RNAi. In conclusion, overexpression of miR156 decreased the fiber content of alfalfa but increased energy and DM degradation. SPL6RNAi was more similar to miR156 OE alfalfa in chemical composition and degradation, indicating that the SPL6RNAi gene plays an important role in the miR156 overexpression event.
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Affiliation(s)
- Yaogeng Lei
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan S7N 5A8, Canada
| | - Abdelali Hannoufa
- London Research and Development Centre, Agriculture and Agri-Food Canada, 1391 Sandford Street, London, Ontario N5V 4T3, Canada
| | - Peiqiang Yu
- Department of Animal and Poultry Science, College of Agriculture and Bioresources, University of Saskatchewan, 51 Campus Drive, Saskatoon, Saskatchewan S7N 5A8, Canada
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Lactation performance, nitrogen utilization, and profitability in dairy cows fed fermented total mixed ration containing wet corn gluten feed and corn stover in combination replacing a portion of alfalfa hay. Anim Feed Sci Technol 2020. [DOI: 10.1016/j.anifeedsci.2020.114687] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bajaj P, Mahajan R. Cellulase and xylanase synergism in industrial biotechnology. Appl Microbiol Biotechnol 2019; 103:8711-8724. [DOI: 10.1007/s00253-019-10146-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/10/2019] [Accepted: 09/17/2019] [Indexed: 11/29/2022]
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El-Zaiat HM, Abdalla AL. Potentials of patchouli (Pogostemon cablin) essential oil on ruminal methanogenesis, feed degradability, and enzyme activities in vitro. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:30220-30228. [PMID: 31422537 DOI: 10.1007/s11356-019-06198-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
The effects of patchouli essential oil (PEO) as an alternative to antibiotics on ruminal methanogenesis, feed degradability, and enzyme activities were evaluated. The basal substrate was incubated without additives (control, CTL) and with monensin (MON, 6 μM/g DM) or patchouli essential oil (PEO, 90 μg/g DM) for 24 h. In three different runs, the gas production (GP) was recorded at 2, 4, 8, 12, and 24 h of incubation using a semi-automatic system. The results revealed that MON had decreased (P < 0.05) the net GP and CH4 production and digestible and metabolizable energy relative to PEO supplementation. The in vitro truly degraded organic matter was not influenced by PEO application, while was reduced (P = 0.027) with MON. Both PEO and MON had similar reducing effect on the activity of carboxymethylcellulase (P = 0.030), in vitro truly degraded neutral detergent fiber (P = 0.010), NH3-N concentrations (P = 0.012), acetate proportion (C2, P = 0.046), C2 to C3 ratio (P = 0.023), and total protozoal count (P = 0.017). Both additives recorded similar elevating potential on the α-amylase activity (P = 0.012), propionate (C3) proportion (P = 0.011), and microbial protein (P = 0.034) compared with CTL. Effects of MON and PEO on ruminal feed degradability, microbial enzyme activities, and total protozoa counts may be responsible for modifying rumen fermentation ecology. Addition of PEO may act as a desirable alternative rumen modifier for MON in ruminant diets.
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Affiliation(s)
- Hani M El-Zaiat
- Animal Production Department, Faculty of Agriculture, University of Alexandria, Aflaton St., El-Shatby, P.O Box 21545, Alexandria, Egypt.
| | - Adibe L Abdalla
- Laboratory of Animal Nutrition, Centre for Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário, 303, Piracicaba, SP, 13416-000, Brazil
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Wang D, Zhao C, Liu S, Zhang T, Yao J, Cao Y. Effects of Piromyces sp. CN6 CGMCC 14449 on fermentation quality, nutrient composition and the in vitro degradation rate of whole crop maize silage. AMB Express 2019; 9:121. [PMID: 31359220 PMCID: PMC6663944 DOI: 10.1186/s13568-019-0846-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/23/2019] [Indexed: 11/28/2022] Open
Abstract
This study investigated the effects of the rumen fungus Piromyces sp. CN6 CGMCC 14449 as a silage additive on the fermentation quality, nutrient composition and in vitro digestibility of whole crop maize silage. Whole crop maize served as the silage material and was vacuum packed in polyethylene bags. Three ensiling treatments were applied: a control (CK), addition of a fungus (FU) at 105 thallus-forming units per gram, and addition of compound enzyme (EN) at 0.033 mg/g (containing cellulase and xylanase at activities of 90 filter paper units and 6000 IU per gram, respectively). Compared with the CK, the FU and EN treatments decreased the pH after 30 days fermentation (P <0.05). Both FU and EN treatments increased the lactate, crude protein, and water-soluble carbohydrate contents (P <0.05), whereas reduced the acetate, ADF and NDF contents as well as the ammonia nitrogen to total nitrogen ratio in silage after 30 days of ensilaging (P <0.05), compared with those for the CK, while no changes were found in the dry matter and dry matter recovery (P > 0.05). The fungal inoculant increased the in vitro digestibility of dry matter, NDF and ADF in silage after 30 days fermentation (P <0.05). In conclusion, the rumen fungus Piromyces sp. CN6 CGMCC 14449 can improve the quality and nutrient composition of whole crop maize silage and increase the crude fibre digestibility.
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Sallam SMA, Abdelmalek MLR, Kholif AE, Zahran SM, Ahmed MH, Zeweil HS, Attia MFA, Matloup OH, Olafadehan OA. The effect of Saccharomyces cerevisiae live cells and Aspergillus oryzae fermentation extract on the lactational performance of dairy cows. Anim Biotechnol 2019; 31:491-497. [PMID: 31204579 DOI: 10.1080/10495398.2019.1625783] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Eighty multiparous lactating Holstein cows (635 ± 33 kg) were used to study the effect of feeding Saccharomyces cerevisiae and/or Aspergillus oryzae on lactational performance for 14 weeks. Cows were assigned in a completely randomized experimental design, with repeated measures into four treatments, and were fed a basal diet of concentrates and forage at a ratio of 592:408, respectively. The treatments were: (1) the basal diet with no additive (Control treatment); (2) the basal diet supplemented with 3.5 g of live S. cerevisiae/cow daily (SC treatment); (3) the basal diet supplemented with 3.5 g A. oryzae fermentation extract/cow daily (AO treatment); and (4) the basal diet supplemented with 3.5 g of live S. cerevisiae + 3.5 g A. oryzae fermentation extract/cow daily (AOSC treatment). The AO and AOSC treatments increased (p < .05) feed intake and daily milk production, with a low milk fat content for the AO treatment. Feeding SC treatment decreased (p = .002) serum glucose concentration, while the AOSC treatment increased serum glutamate-oxaloacetate transaminase concentration. It is concluded that S. cerevisiae supplementation did not enhance milk production; however, A. oryzae fermentation extract improved feed intake and milk production.
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Affiliation(s)
- Sobhy M A Sallam
- Faculty of Agriculture, Department of Animal and Fish Production, Alexandria University, Alexandria, Egypt
| | - Mina L R Abdelmalek
- Faculty of Agriculture (Saba Basha), Department of Animal and Fish Production, Alexandria University, Alexandria, Egypt
| | - Ahmed E Kholif
- Dairy Science Department, National Research Centre, Giza, Egypt
| | - Soliman M Zahran
- Faculty of Agriculture (Saba Basha), Department of Animal and Fish Production, Alexandria University, Alexandria, Egypt
| | - Mohamed H Ahmed
- Faculty of Agriculture (Saba Basha), Department of Animal and Fish Production, Alexandria University, Alexandria, Egypt
| | - Hassan S Zeweil
- Faculty of Agriculture (Saba Basha), Department of Animal and Fish Production, Alexandria University, Alexandria, Egypt
| | - Marwa F A Attia
- Animal Production Research Institute, Agricultural Research Center, Giza, Egypt
| | - Osama H Matloup
- Dairy Science Department, National Research Centre, Giza, Egypt
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26
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Wang N, Chen T, Yang X, Shen C, Li H, Wang S, Zhao J, Chen J, Chen Z, Li Y. A practicable strategy for enrichment and separation of four minor flavonoids including two isomers from barley seedlings by macroporous resin column chromatography, medium-pressure LC, and high-speed countercurrent chromatography. J Sep Sci 2019; 42:1717-1724. [PMID: 30811854 DOI: 10.1002/jssc.201801324] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/14/2019] [Accepted: 02/21/2019] [Indexed: 11/07/2022]
Abstract
Separation of minor compounds especially with similar polarities and structures from complex samples is a challenging work. In the present study, an efficient method was successfully established by macroporous resin column chromatography, medium-pressure liquid chromatography, and high-speed countercurrent chromatography for separation of four minor flavonoids from barley seedlings. Macroporous resin column chromatography and medium-pressure liquid chromatography were used for enrichment of these four flavonoids. High-pressure liquid chromatography analysis showed the total content of these four flavonoids increased from 2.2% in the crude extract to 95.3% in the medium-pressure liquid chromatography fraction. It was indicated that the combination of macroporous resin column chromatography and medium-pressure liquid chromatography could be a practicable strategy for enrichment of minor compounds from complex sample. Then, high-speed countercurrent chromatography was employed for separation of these four flavonoids using ethyl acetate/n-butanol/water (0.1% glacial acetic acid) (4:1:5, v/v/v) as solvent system. As a result, four flavonoids including two isomers with purities higher than 98% were obtained. Interestingly, two flavonoids existing in one high-pressure liquid chromatography peak were also successfully separated. All these indicated high-speed countercurrent chromatography had great potential for separation of compounds with similar structures and polarities. This study provides a reference for efficient enrichment and separation of minor compounds from complex sample.
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Affiliation(s)
- Nana Wang
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P. R. China
| | - Tao Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
| | - Xue Yang
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P. R. China
| | - Cheng Shen
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P. R. China
| | - Hongmei Li
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P. R. China
| | - Shuo Wang
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
| | - Jingyang Zhao
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
| | - Jilin Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
| | - Zhi Chen
- Qinghai Key Laboratory of Medicinal Plant and Animal Resources of Qinghai-Tibet Plateau, Qinghai Normal University, Xining, P. R. China
| | - Yulin Li
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, P. R. China
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Lin YS, Saputra F, Chen YC, Hu SY. Dietary administration of Bacillus amyloliquefaciens R8 reduces hepatic oxidative stress and enhances nutrient metabolism and immunity against Aeromonas hydrophila and Streptococcus agalactiae in zebrafish (Danio rerio). FISH & SHELLFISH IMMUNOLOGY 2019; 86:410-419. [PMID: 30471337 DOI: 10.1016/j.fsi.2018.11.047] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/12/2018] [Accepted: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Zebrafish (Danio rerio) are an excellent model for assessing the beneficial effects of probiotics before applying them in aquaculture. This study evaluated the effects on zebrafish of dietary supplementation with the probiotic Bacillus amyloliquefaciens R8, which heterologously expresses xylanase from rumen fungi. Nutrient metabolism, hepatic oxidative stress, and innate immunity against pathogen infections were investigated. Treated zebrafish received feed supplemented with B. amyloliquefaciens R8 for 30 days and then were compared to zebrafish that were fed a control diet. The treated fish showed significant increases in xylanase activity in the intestines. The livers of the treated fish showed increased mRNA expressions of glycolysis-related genes of hexokinase, glucokinase, glucose-6-phosphatase, and pyruvate kinase; and higher enzyme activities of 3-hydroxyacyl-coenzyme A dehydrogenase and citrate synthase which are associated with fatty acid β-oxidation and mitochondrial integrity. The livers of treated fish also showed decreased mRNA expressions of oxidative stress-related genes (SOD, Gpx, NOS2, and Hsp70) and an apoptotic gene (tp53), as well as increased expression of an anti-apoptotic gene (bcl-2). The probiotics-treated fish had increased expression of innate immune-related genes (IL-1β, IL-6, IL-21, TNF-α, and TLR-1, -3, and -4). Following challenge with Aeromonas hydrophila and Streptococcus agalactiae, treated fish showed increased a higher survival rate than control fish. Overall, results showed that the administration of xylanase-expressing B. amyloliquefaciens R8 can potentially improve nutrient metabolism and hepatic stress tolerance, and enhance immunity and disease resistance against A. hydrophila and S. agalactiae in zebrafish.
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Affiliation(s)
- Yu-Sheng Lin
- Department of Marine Environment and Engineering, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Febriyansyah Saputra
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan; Department of Aquaculture, Faculty of Fisheries and Marine Science, University of Brawijaya, Malang, Indonesia
| | - Yo-Chia Chen
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan.
| | - Shao-Yang Hu
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan; Research Center for Animal Biologics, National Pingtung University of Science and Technology, Pingtung, 912, Taiwan.
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