1
|
Jeon K, Song M, Lee J, Oh H, Song D, Chang S, An J, Cho H, Park S, Kim H, Cho J. Effects of single and complex probiotics in growing-finishing pigs and swine compost. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2024; 66:763-780. [PMID: 39165745 PMCID: PMC11331375 DOI: 10.5187/jast.2024.e88] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/02/2023] [Accepted: 08/11/2023] [Indexed: 08/22/2024]
Abstract
This study was conducted to supplement single and complex probiotics to investigate the effect on growing-finishing pigs and compost. In experiment 1, the 64 crossbred ([Landrace × Yorkshire] × Duroc) pigs with an initial body weight of 18.75 ± 0.33 kg and a birth of 63 days were assigned to a completely randomized four treatment groups based on the initial body weight (4 pigs in a pen with 4 replicate pens for each treatment). For 13 weeks, the dietary treatments were provided: 1) Control (CON; basal diet), 2) T1 (CON + 0.2% Bacillus subtilis), 3) T2 (CON + 0.2% Saccharomyces cerevisiae), 4) T3 (CON + 0.2% Bacillus subtilis + 0.2% Saccharomyces cerevisiae). In experiment 2, the pig manure was obtained from Chungbuk National University (Cheongju, Korea) swine farm. For 12 weeks, the supplementary treatments were provided: 1) CON, non-additive compost; 2) T1, spray Bacillus subtilis 10 g per 3.306 m2; 3) T2, spray Bacillus subtilis 40 g per 3.306 m2; 4) T3, spray Saccharomyces cerevisiae 10 g per 3.306 m2; 5) T4: spray Saccharomyces cerevisiae 40 g per 3.306 m2; 6) T5, spray Bacillus subtilis 5 g + Saccharomyces cerevisiae 5 g per 3.306 m2; 7) T6, spray Saccharomyces subtilis 20 g + S. cerevisiae 20 g per 3.306 m2 and there were 6 replicates each treatment. In experiment 1, During the overall experimental period, T3 showed significantly improved (p < 0.05) feed conversion ratio and average daily gain compared to other groups. In average maturity score, T3 showed significantly higher (p < 0.05) than other groups. Supplementing complex probiotics group improved (p < 0.05) H2S emissions and fecal microflora compared to the non-supplementing group. In experiment 2, additive probiotics groups had no effect (p > 0.05) on moisture content than the non-additive group at 9 and 12 weeks. T6 showed a significantly improved (p < 0.05) average maturity score at all periods and ammonia emissions at 1 week and 4 weeks compared to other groups. In summary, supplementation complex probiotics induced positive effects on both pigs and compost.
Collapse
Affiliation(s)
- Kyeongho Jeon
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Minho Song
- Department of Animal Science and
Biotechnology, Chungnam National University, Daejeon 34134,
Korea
| | - Jihwan Lee
- Department of Poultry Science, University
of Georgia (UGA), Athens, GA 30602, USA
| | - Hanjin Oh
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Dongcheol Song
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Seyeon Chang
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Jaewoo An
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Hyunah Cho
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Sehyun Park
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| | - Hyeunbum Kim
- Department of Animal Resource and Science,
Dankook University, Cheonan 31116, Korea
| | - Jinho Cho
- Department of Animal Science, Chungbuk
National University, Cheongju 28644, Korea
| |
Collapse
|
2
|
Liu Y, Wang X, Li G, Gong S, Yang Y, Wang C, Wang H, He D. The impact of replacing corn with elephant grass ( Pennisetum purpureum) on growth performance, serum parameters, carcass traits, and nutrient digestibility in geese. Heliyon 2024; 10:e29784. [PMID: 38681589 PMCID: PMC11053276 DOI: 10.1016/j.heliyon.2024.e29784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 04/01/2024] [Accepted: 04/15/2024] [Indexed: 05/01/2024] Open
Abstract
This study investigated the effects of partially replacing corn with elephant grass dry matter (air drass) on growth performance, serum parameters, carcass traits, and nutrient digestibility in geese. A total of 360 one-day-old Hortobágyi geese were randomly divided into three groups: control (basic diet), 12 % elephant grass, and 24 % elephant grass. The geese were raised for 70 days. The results showed that compared to the control, 12 % elephant grass had no adverse effects on final body weight, feed/gain ratio, mortality, serum liver and kidney function markers. However, 24 % elephant grass significantly reduced the final body weight (P < 0.001) and feed/gain ratio (P = 0.026) compared to the control group. Both experiment groups had decreased serum aspartate aminotransferase (P < 0.001), alanine aminotransferase (P < 0.001), alkaline phosphatase (P < 0.001), triglycerides (P < 0.001), and total cholesterol (P < 0.001). The addition of 12 % and 24 % elephant grass reduced abdominal fat (P = 0.002), but it had no significant effect on slaughter rate, half-bore rate, full-bore rate, breast muscle rate and leg muscle rate. For nutrient digestibility, 12 % elephant grass improved neutral detergent fiber digestibility compared to the control group (P = 0.026). The 24 % grass group had reduced Ca absorption (P = 0.020). Overall, the findings suggest that partially replacing corn with 12 % elephant grass in goose diet can maintain growth performance and carcass traits.It also has no negative effect on nutrient digestibility while improving serum parameters.
Collapse
Affiliation(s)
| | | | - Guangquan Li
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Shaoming Gong
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yunzhou Yang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Cui Wang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Huiying Wang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Daqian He
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| |
Collapse
|
3
|
Zhang D, Ji H, Wang S, Liu Y, Chen M, Liu H. Lactobacillus-driven feed fermentation regulates microbiota metabolism and reduces odor emission from the feces of pigs. mSystems 2023; 8:e0098823. [PMID: 38032191 PMCID: PMC10734501 DOI: 10.1128/msystems.00988-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 09/21/2023] [Indexed: 12/01/2023] Open
Abstract
IMPORTANCE Our present study showed that dietary supplementation with feed fermented by Lactobacillus could promote the growth performance of pigs, regulate the microbiota, and inhibit the growth of harmful bacteria. It could prevent the accumulation of toxic substances and reduce odor emission from pig feces, thereby reducing environmental pollution. In addition, one key triumph of the present study was the isolation of Weissella cibaria ZWC030, and the strain could inhibit the production of skatole in vitro in our present results.
Collapse
Affiliation(s)
- Dongyan Zhang
- Institute of Animal Science and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Haifeng Ji
- Institute of Animal Science and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Sixin Wang
- Institute of Animal Science and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yajuan Liu
- Mountainous Area Research Institute of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Meixia Chen
- Institute of Animal Science and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hui Liu
- Institute of Animal Science and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| |
Collapse
|
4
|
Hwang O, Yun YM, Trabue S. Impact of Bacillus subtilis on manure solids, odor, and microbiome. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 333:117390. [PMID: 36758400 DOI: 10.1016/j.jenvman.2023.117390] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/13/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
A study was conducted to determine the effectiveness of supplementing swine manure with Bacillus subtilis (BS) to improve digestion of manure solids and lower odor emission. Large bioreactors (400 L) with manure (100 L) were treated with commercially available BS at a rate of 1% manure volume by either directly pouring or surface spraying the manure with inoculum. Manure physicochemical properties, gas emissions, and microbiome were monitored. Manures treated multiple times with BS or surface sprayed had significantly (P < 0.05) lower electrical conductivity, volatile solids, and chemical oxygen demand, by 3-5% compared to non-treated control manures. Volatile sulfur compound emissions (VSCs) were reduced by 20-30% in both experiments, while ammonia and volatile organic compounds were reduced by 40% and 15%, respectively, in surface spray experiment only. The manure indigenous microbiome remained relatively stable following treatment and BS were never detected in the raw or treated manure following multiple treatments. The reduction in manure organic carbon and VSCs emissions were a result of physical mixing during manure treatment and biological material in the microbial inoculum stimulating microbial activity and not growth of BS.
Collapse
Affiliation(s)
- Okhwa Hwang
- National Institute of Animal Science, Rural Development Administration, 1500, Kongjwipatjwi-Ro, Iseo-Myeon, Wanju-Gun, Jeollabuk-Do, 55365, Republic of Korea
| | - Yeo-Myeong Yun
- Department of Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, 28644, Republic of Korea
| | - Steven Trabue
- USDA-Agriculture Research Service, National Laboratory for Agriculture and the Environment, 1015N. University Boulevard, Ames, IA, 50011, United States.
| |
Collapse
|
5
|
Kim JH, Ko GP, Son KH, Ku BH, Bang MA, Kang MJ, Park HY. Arazyme in combination with dietary carbohydrolases influences odor emission and gut microbiome in growing-finishing pigs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157735. [PMID: 35926625 DOI: 10.1016/j.scitotenv.2022.157735] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/13/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
This study evaluated the effects of supplementing feed with arazyme and dietary carbohydrolases derived from invertebrate gut-associated symbionts on the noxious gas emissions, gut microbiota, and host-microbiome interactions of pigs. Here, 270 and 260 growing pigs were assigned to control and treatment groups, respectively. The tested feed additives contained a mixture of arazyme (2,500,000 Unit/kg) and synergetic enzymes, xylanase (200,000 Unit/kg) and mannanase (200,000 Unit/kg), derived from insect gut-associated symbionts in a 7.5:1:1 ratio. The control group was fed a basal diet and the treatment group was fed the basal diet supplemented with 0.1 % enzyme mixture (v/v) for 2 months. Odorous gases were monitored in ventilated air from tested houses. Fecal samples were collected from steel plate under the cage at the completion of the experiment to determine chemical composition, odor emissions, and bacterial communities. There was a significant decrease in the concentration of NH3 (22.5 vs. 11.2 ppm; P < 0.05), H2S (7.35 vs. 3.74 ppm; P < 0.05), trimethylamine (TMA) (0.066 vs. 0.001 ppm; P < 0.05), and p-cresol (0.004 ppm vs. 0 ppm; P < 0.05) at 56 d in treatment group compared with the control group. Moreover, fecal analysis results showed that exogenous enzyme supplementation caused a reduction in VFAs and indole content with approximately >60 % and 72.7 %, respectively. The result of gas emission analysis showed that NH3 (9.9 vs. 5.3 ppm; P < 0.05) and H2S (5.8 vs. 4.1 ppm; P < 0.05) were significantly reduced in the treatment group compared to the control group. The gut microbiota of the treatment group differed significantly from that of the control group, and the treatment group altered predicted metabolic pathways, including sulfur and nitrogen related metabolism, urea degradation. The results demonstrated that supplementing feed with arazyme with dietary carbohydrolases effectively controls noxious gas emissions and improves health and meat quality of pigs.
Collapse
Affiliation(s)
- Jong-Hoon Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Gwang-Pyo Ko
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Kwang-Hee Son
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Bon-Hwan Ku
- Insect Biotech Co. Ltd., Daejeon 34054, Republic of Korea
| | - Mi-Ae Bang
- Department of Animal Science, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Man-Jong Kang
- Department of Food Industry Research Center, Jeonnam Bioindustry Foundation, Naju 58275, Republic of Korea.
| | - Ho-Yong Park
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
| |
Collapse
|
6
|
Muhizi S, Kim I. Microbial agent spraying in pig housing and slurry can potentially
reduce harmful gas emissions – a preliminary study. JOURNAL OF ANIMAL AND FEED SCIENCES 2022. [DOI: 10.22358/jafs/154037/2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
7
|
Sureshkumar S, Park JH, Kim IH. A preliminary evaluation on mixed probiotics as an antimicrobial spraying agent in growing pig barn. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:1035-1045. [PMID: 36812037 PMCID: PMC9890338 DOI: 10.5187/jast.2022.e69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/19/2022] [Accepted: 08/21/2022] [Indexed: 11/07/2022]
Abstract
The purpose of this study is to examine whether spraying an anti-microbial agent into the slurry pit will reduce the noxious odor substances from piggery barns. For this, a total of 200 crossbred ([Landrace × Yorkshire] × Duroc) growing pigs with an initial average body weight (BW) of 23.58 ± 1.47 kg were selected and housed in two different rooms, i.e. control (CON) and treatment (TRT). Each room has 100 pigs (60 gilts and 40 borrows). For a period of 42 days, all pigs were fed with corn-soybean meal-based basal diet. Later the noxious odor substances were measured by the following methods. First, fecal samples were randomly collected and stored in sealed and unsealed containers, and sprayed with the non-anti-microbial agent (NAMA) (saline water) and multi-bacterial spraying (MBS) agent (200 :1, mixing ratio-fecal sample : probiotic), Second, the slurry pit of CON and TRT rooms were directly sprayed with NAMA and MBS, respectively. The fecal sample that was stored in sealed and un-sealed containers and sprayed with MBS significantly reduced NH3 and CO2 concentration at the end of day 7. However, at the end of day 42, the fecal sample showed a lower H2S, methyl mercaptans, acetic acid, and CO2 concentration compared to the unsealed container. Moreover, at the end of days 7, 14, 21, 28, 35, and 42 compared to the CON room and TRT room slurry pit emits lower concentrations of NH3, acetic acid, H2S, and methyl mercaptans, and CO2 into the atmosphere. Based on the current findings, we infer that spraying anti-microbial agents on pig dung would be one of the better approaches to suppress the odor emission from the barn in the future.
Collapse
Affiliation(s)
| | - Jae Hong Park
- Department of Animal Resource and Science,
Dankook University, Cheonan 31116, Korea
| | - In Ho Kim
- Department of Animal Resource and Science,
Dankook University, Cheonan 31116, Korea,Corresponding author: In Ho Kim,
Department of Animal Resource and Science, Dankook University, Cheonan 31116,
Korea. Tel: +82-41-550-3652, E-mail:
| |
Collapse
|
8
|
Jang YN, Hwang O, Jung MW, Ahn BK, Kim H, Jo G, Yun YM. Comprehensive analysis of microbial dynamics linked with the reduction of odorous compounds in a full-scale swine manure pit recharge system with recirculation of aerobically treated liquid fertilizer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:146122. [PMID: 33689889 DOI: 10.1016/j.scitotenv.2021.146122] [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] [Received: 12/13/2020] [Revised: 01/29/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
It is believed that the generation of odorous materials in manure-slurry pits during the storage can be reduced by recirculating aerobically treated liquid fertilizer (ATLF) to a manure-pit recharge system (PRS). However, the biological mechanisms for reduction of those problematic compounds remain poorly understood. In this study, the links between microbial evolution and changes in chemical composition and odorous compounds were analyzed where swine-manure slurry was stored in a full-scale PRS. Some beneficial microorganisms were successfully established in the PRS. This resulted in the accumulation of fewer undesirable chemical components and lower amounts of odorous compounds compared to those in a conventional swine-manure slurry pit (the control). Decrease in the volatile fatty acids (1387-8478 mg/L → 306-1258 mg/L) and NH3 (3387-4300 mg/L → 85-200 mg/L) in the PRS was mainly due to the development of a key community that included a mix of aerobic, anaerobic fermentative, nitrifying (0.1-0.6%) and denitrifying (1.7-3.5%), and methanogenic microorganisms (2.1-4.2%). Meanwhile, the generation of greater amounts of H2S (12-290 mg/L → 61-1754 mg/L) was found in the PRS, which condition was supported by the increased proportion of sulfate-reducing bacteria (0.5-3%). To the authors' best knowledge this is the first study comprehensively analyzing microbial dynamics linked with the reduction of odorous compounds in the full-scale PRS in response to recirculation of ATLF.
Collapse
Affiliation(s)
- Yu-Na Jang
- Animal Environment Division, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Okhwa Hwang
- Animal Environment Division, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Min-Woong Jung
- Animal Environment Division, National Institute of Animal Science, 1500 Kongjwipatjwi-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Byung-Kyu Ahn
- Department of Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju 28644, Republic of Korea
| | - Huijin Kim
- Department of Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju 28644, Republic of Korea
| | - Gwanggon Jo
- Monitoring and Analysis Division, Geum River Basin Environment Office, 417 Daehak-ro, Yuseong-Gu, Daejeon 34142, Republic of Korea
| | - Yeo-Myeong Yun
- Department of Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju 28644, Republic of Korea.
| |
Collapse
|
9
|
Recharla N, Balasubramanian B, Song M, Puligundla P, Kim SK, Jeong JY, Park S. Dietary turmeric ( Curcuma longa L.) supplementation improves growth performance, short-chain fatty acid production, and modulates bacterial composition of weaned piglets. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:575-592. [PMID: 34189506 PMCID: PMC8204000 DOI: 10.5187/jast.2021.e55] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/03/2021] [Accepted: 03/10/2021] [Indexed: 12/15/2022]
Abstract
In livestock nutrition, natural feed additives are gaining increased attention as
alternatives to antibiotic growth promoters to improve animal performance. This
study investigated the effects of dietary turmeric supplementation on the growth
performance and gut health of weaned piglets. A total of 48 weaned piglets
(Duroc × [Landrace × Yorkshire]) were used in a 6-week feeding
trial. All piglets were allotted to two dietary treatments: corn-soybean meal
basal diet without turmeric (control) and with 1% weight per weight (w/w)
turmeric powder (turmeric). The results showed that dietary inclusion of
turmeric with the basal diet improved final body weight and total average daily
gain (p < 0.05). The concentrations of short-chain fatty
acids in the fecal samples, including acetic, butyric, and propionic acids, were
higher in the turmeric group (p < 0.05). The villus
height-to-crypt depth ratio was higher in the ileum of turmeric-fed piglets
(p = 0.04). The 16S rRNA gene sequencing of fecal
microbiota indicated that, at the phylum level, Firmicutes and
Bacteroidetes were the most predominant taxa in all fecal
samples. Bacteroidetes were significantly decreased in the
turmeric group compared to the control group (p = 0.021). At
the genus level, turmeric showed a decreased abundance of
Prevotella (p = 0.021) and an increasing
trend of Lactobacillus (p = 0.083). Among the
total detected species, nine bacterial species showed significant differences
between the two groups. The results of this study indicated that turmeric
altered the gut microbiota and short-chain fatty acid production. This suggests
that turmeric could be used as a potential alternative growth promoter for
piglets.
Collapse
Affiliation(s)
- Neeraja Recharla
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Korea
| | | | - Minho Song
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Korea
| | - Pradeep Puligundla
- Department of Food Science and Biotechnology, Gachon University, Seongnam 13120, Korea
| | - Soo-Ki Kim
- Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea
| | - Jin Young Jeong
- National Institute of Animal Science, RDA, Wanju 55365, Korea
| | - Sungkwon Park
- Department of Food Science and Biotechnology, Sejong University, Seoul 05006, Korea
| |
Collapse
|
10
|
Sampath V, Han K, Kim IH. Influence of yeast hydrolysate supplement on growth performance, nutrient digestibility, microflora, gas emission, blood profile, and meat quality in broilers. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021; 63:563-574. [PMID: 34189505 PMCID: PMC8203994 DOI: 10.5187/jast.2021.e61] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/05/2021] [Accepted: 03/26/2021] [Indexed: 01/14/2023]
Abstract
A total of 1512 Ross 308 broilers (one - day - old) were assigned (random blocks)
to 1of 3 dietary treatments with 28 replicates of 18 chicks/cage. The dietary
treatments were Corn-soybean-meal based basal diet supplemented with 0%, 0.1%,
and 0.2% of commercial yeast hydrolysate (YH [Saccharomyces
cerevisiae]). The graded level of YH supplementation has linearly
increased broilers body weight gain on d 21, 35, and overall (p
= 0.044, 0.029, and 0.036, respectively) experimental period. In addition, the
increased level of YH supplementation has linearly reduced feed conversation
ratio of broilers on d 21, 35, and overall trial period (p =
0.041, 0.052, and 0.032, respectively). However, the feed intake and mortality
of broilers were not affected by the graded level of YH supplementation. Though
nutrient digestibility of dry matter (p = 0.012) and nitrogen
(p = 0.021) was linearly increased in broilers fed YH
supplementation, at the end of the trial it fails to affect the total track
digestible energy. Dietary inclusion of YH supplementation showed a beneficial
effect on the microbial population as linearly improved
lactobacillus (p = 0.011) and reduced
Escherichiacoli counts (p = 0.042). An increasing level
of YH supplementation has tended to decrease NH3 (p
= 0.069) and linearly decrease H2S (p = 0.027) of
noxious gas emission in broilers. Moreover, dietary YH supplements trend to
increase the glucose (p = 0.066) and reduced cholesterol
(p = 0.069) level. At the end of the test, YH
supplementation elicited a linear reduction in drip loss on days 5 and 7,
respectively (p = 0.045, and 0.021). Furthermore, dietary
inclusion of YH supplementation had linearly increased villus height
(p = 0.051) but fails to affect crypt depth. Therefore, in
terms of positive effects on the broiler’s overall performance, we
suggest that dietary supplements containing graded YH levels in the broilers
diet could serve as a potential alternative for growth promoters.
Collapse
Affiliation(s)
- Vetriselvi Sampath
- Department of Animal Resource and Science, Dankook University, Cheonan 31116, Korea
| | - Kyudong Han
- Department of Microbiology, College of Science & Technology, Dankook University, Cheonan 31116, Korea.,Center for Bio Medical Engineering Core Facility, Dankook University, Cheonan 31116, Korea
| | - In Ho Kim
- Department of Animal Resource and Science, Dankook University, Cheonan 31116, Korea
| |
Collapse
|