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Gholami M, Shirzadi H, Taherpour K, Rahmatnejad E, Shokri A, Khatibjoo A. Effect of emulsifier on growth performance, nutrient digestibility, intestinal morphology, faecal microbiology and blood biochemistry of broiler chickens fed low-energy diets. Vet Med Sci 2024; 10:e1437. [PMID: 38555574 PMCID: PMC10981915 DOI: 10.1002/vms3.1437] [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: 01/04/2024] [Revised: 02/24/2024] [Accepted: 03/10/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND This study hypothesizes that a natural multicomponent emulsifier (Lipidol) could improve production performance in broiler chickens by aiding lipid digestion and addressing digestive system limitations. OBJECTIVES The study aimed to investigate the effects of dietary emulsifier inclusion on the growth performance, nutrient digestibility, intestinal morphology, faecal microbiology, blood biochemistry and liver enzyme activities of broiler chickens fed low-energy diets. METHODS The experiment involved 144 one-day-old male broiler chickens split into 4 treatments. Four diets were used: standard metabolizable energy (ME) as a control diet and three low-ME diets, reducing by 100 kcal/kg by adding 0.5, 1 and 1.5 g/kg of exogenous emulsifier (Em). RESULTS No significant differences were observed in body weight gain and feed intake. However, during the finisher period (25-42 days), supplementation emulsifier to low-ME diets notably improved feed efficiency. Although crude protein, organic matter and ash digestibility remained unaffected, dry matter (DM) digestibility significantly increased in broilers fed low-ME diets with emulsifier. Broilers receiving 0.5 g/kg of emulsifier showed the highest villus width and surface area values. Moreover, including 1.5 g/kg of emulsifier led to the highest villus height to crypt depth ratio. Faecal microbiota, blood biochemistry and liver enzyme activities showed no significant differences. CONCLUSIONS Emulsifier supplementation compensated for the energy reduction and enhanced performance, DM digestibility and some intestinal morphology parameters in broiler chickens fed low-ME diet. Using 0.5 g/kg of emulsifier per 100 kcal of ME reduction in broiler diets is suggested.
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Affiliation(s)
| | - Hassan Shirzadi
- Department of Animal ScienceFaculty of AgricultureIlam UniversityIlamIran
| | - Kamran Taherpour
- Department of Animal ScienceFaculty of AgricultureIlam UniversityIlamIran
| | - Enayat Rahmatnejad
- Department of Animal ScienceFaculty of Agriculture and Natural ResourcesPersian Gulf UniversityBushehrIran
| | - Alinaghi Shokri
- Department of Animal ScienceFaculty of AgricultureIlam UniversityIlamIran
| | - Ali Khatibjoo
- Department of Animal ScienceFaculty of AgricultureIlam UniversityIlamIran
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Saleh AA, Mousa A, Amber K, Badwi N, Shoukry M, Khairy M, Nusairat B, Odetallah N, Lin YMA, Selim S. Effect of endo-1,4-beta-xylanase supplementation to low-energy diets on performance, blood constituents, nutrient digestibility, and gene expressions related growth of broiler chickens. J Anim Physiol Anim Nutr (Berl) 2024; 108:99-110. [PMID: 37587735 DOI: 10.1111/jpn.13870] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/17/2023] [Accepted: 08/03/2023] [Indexed: 08/18/2023]
Abstract
The presence of soluble and insoluble non-starch polysaccharides (NSP) was reported to reduce nutrient utilisation, and adversely impact the broilers' growth performance; accordingly, NSP-degrading enzymes are essential supplements to cereal-based diets. Therefore, the current trial was conducted to characterise the impacts of supplemental xylanase (Xyl) to diets with low-ME levels on performance, carcass traits, blood parameters, nutrient digestibility and some genes expressions in broiler chickens. A total of 600 1-day-old Ross 308 male broiler chicks were randomly assigned to 6 treatments with 10 replications of 10 birds each per group in a completely randomised design. The 6 treatments were as follow: (1) basal diets with balanced ME content served as control (positive control, PC), (2) low-energy diet (negative control 1 [NC1]; ME content reduced by 70 kcal/kg compared with PC), (3) low-energy diet (negative control 2 [NC2]; ME content reduced by 140 kcal/kg compared with PC), (4) NC1 + 100 g/ton xylanase (NC1 + 100Xyl), (5) NC2 + 100 g/ton xylanase (NC2 + 100Xyl), and (6) NC1 + 50 g/ton xylanase (NC1 + 50Xyl). At the end of the experiment (35 days of age), the reduction of energy in the NC diets yielded lower live body weight (BW) and total body weight gain (BWG) (p ˂ 0.001); however, it significantly increased feed intake (p ˂ 0.05), leading to worst feed conversion ratio (FCR) and European production efficiency factor (EPEF) (p ˂ 0.01) than PC. There was non-significant variation in final BW, BWG, FCR, or EPEF between the PC group and the NC groups supplemented with Xyl. Carcass yield, gizzard, liver and, muscle relative weights were not influenced by dietary treatments; while broilers fed diet with low-energy diets with or without Xyl addition had lower abdominal fat (p ˂ 0.01) than PC. Furthermore, broilers fed on low-ME diets supplemented with Xyl showed a reduction in plasma total cholesterol (p ˂ 0.05) and low density lipoprotein (p ˂ 0.01) levels. Greater antibody titre against Newcastle disease (p ˂ 0.05) was recorded in the NC1 + 100Xyl and NC2 + 100Xyl groups. The addition of Xyl to low-energy diets significantly improved (p ˂ 0.05) fibre digestibility compared to the PC group. Moreover, enzyme supplementation increased muscle total lipids content and decreased muscle thiobarbituric acid retroactive substance content. In addition, enzyme supplementation increased gene expression related to growth and gene expression related to fatty acid synthesis. It was concluded that a low-ME diet might diminish broiler performance, whereas Xyl supplementation to low-ME diets beneficially affected growth performance, abdominal fat percentage, nutrient digestibility and immunity for broilers, and gene expressions related to growth and fatty acid synthesis in broiler chickens fed low-energy diets.
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Affiliation(s)
- Ahmed Ali Saleh
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Ahmed Mousa
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Khairy Amber
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Nemat Badwi
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Mostafa Shoukry
- Department of Physiology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | | | - Basheer Nusairat
- Department of Animal Production, College of Agriculture, Jordan University of Science and Technology, Irbid, Jordan
| | | | - Yun-Mei Amy Lin
- BioResource International, Inc., Durham, North Carolina, USA
| | - Shaimaa Selim
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, University of Menoufia, Shibin El-Kom, Egypt
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Oketch EO, Wickramasuriya SS, Oh S, Choi JS, Heo JM. Physiology of lipid digestion and absorption in poultry: An updated review on the supplementation of exogenous emulsifiers in broiler diets. J Anim Physiol Anim Nutr (Berl) 2023; 107:1429-1443. [PMID: 37435748 DOI: 10.1111/jpn.13859] [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: 12/22/2022] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/13/2023]
Abstract
Lipids are a concentrated source of energy with at least twice as much energy as the same amount of carbohydrates and protein. Dietary lipids provide a practical alternative toward increasing the dietary energy density of feeds for high-performing modern broilers. However, the digestion and absorption of dietary lipids are much more complex than that of the other macronutrients. In addition, young birds are physiologically limited in their capacity to utilise dietary fats and oils effectively. The use of dietary emulsifiers as one of the strategies aimed at improving fat utilisation has been reported to elicit several physiological responses including improved fat digestibility and growth performance. In practical terms, this allows for the incorporation of lipids into lower-energy diets without compromising broiler performance. Such an approach may potentially lower feed costs and raise revenue gains. The current review revisits lipids and the different roles that they perform in diets and whole-body metabolism. Additional information on the process of dietary lipid digestion and absorption in poultry; and the physiological limitation brought about by age on lipid utilisation in the avian gastrointestinal tract have been discussed. Subsequently, the physiological responses resulting from the dietary supplementation of exogenous emulsifiers as a strategy for improved lipid utilisation in broiler nutrition are appraised. Suggestions of nascent areas for a better understanding of exogenous emulsifiers have been highlighted.
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Affiliation(s)
- Elijah O Oketch
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, South Korea
| | - Samiru S Wickramasuriya
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, South Korea
| | - Sungtaek Oh
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, John Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Jun Seung Choi
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, South Korea
| | - Jung Min Heo
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon, South Korea
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Saleh AA, Hafez A, Amber K, Abdelhady AY, Salem HM, Fathy M, Kamal MA, Alagawany M, Alzawqari MH. Drug-independent control strategy of clostridial infection in broiler chickens using anti-toxin environmentally friendly multienzymes. Sci Rep 2023; 13:5614. [PMID: 37024623 PMCID: PMC10079847 DOI: 10.1038/s41598-023-32685-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
The study investigated the effect of enzymes as a toxin detoxifier (DETOXIZYME) dietary supplementation on performance during growth, blood chemistry, and immunity under clostridia infection in chickens. A total of 480, day-old male chicks were randomly distributed to four groups, with six replicates of 20 birds each. The first control negative treatment (A) fed the basal formula as commercial feed prepared following the strain's needs, the second control positive group (B) fed the basal formula challenged with Clostridium perfringens (C. perfringens) type A, the third group (C) fed the basal formula with 100 g DETOXIZYME/ton of feed and challenged with clostridia, and the fourth group (D) fed the control basal formula with 100 g DETOXIZYME/ton of feed. DETOXIZYME dietary supplementation significantly boosted body weight (BW), body weight gain (BWG), feed intake (FI), and European production efficiency factor (EPEF) and improved the feed conversion rate (FCR) of the broilers. The dietary supplementation of DETOXIZYME significantly increased carcass trait and spleen. However, liver and abdominal fat weight significantly decreased compared with clostridia-challenged groups. The values of alanine aminotransferase (ALT), aspartate aminotransferase (AST), uric acid, creatinine, and Malondialdehyde (MDA) were decreased. While calcium, phosphate, zinc, and glutathione peroxidase (GPx) levels were improved in birds that took basal formulas fortified with DETOXIZYME contrary to the other treatment groups during 35 days of age. Plasma total cholesterol, triglyceride, and low-density lipoprotein (LDL) values were reduced versus the other treatment groups. Dietary supplementation of DETOXIZYME increased total protein, albumin, globulin, and Newcastle Disease (ND) immunity titer levels in the overall period compared to other groups. Dietary DETOXIZYME supplementation decreased clostridia and E. coli bacteria counts and improved gut morphometry. In conclusion, dietary supplementation of DETOXIZYME had a positive impact on performance, blood biochemistry, immunity, and bacterial counts and improved the gut morphology in broilers under clostridia infection.
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Affiliation(s)
- Ahmed A Saleh
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, 333516, Egypt.
| | - Abdelhaleem Hafez
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, 333516, Egypt
| | - Khairy Amber
- Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, 333516, Egypt
| | - AbdelRahman Y Abdelhady
- Poultry Production Department, Faculty of Agriculture, Ain Shams University, Hadayek Shoubra, Cairo, 11241, Egypt
| | - Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - M Fathy
- Department of Animal and Poultry Health, Desert Research Centre, Cairo, 11753, Egypt
| | - M A Kamal
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mahmoud Alagawany
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt.
| | - Mohammed H Alzawqari
- Department of Animal Production, Faculty of Agriculture and Food Sciences, Ibb University, 70270, Ibb, Yemen
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Fat digestion and metabolism: effect of different fat sources and fat mobilisers in broilers diet on growth performance and physiological parameters – a review. ANNALS OF ANIMAL SCIENCE 2023. [DOI: 10.2478/aoas-2022-0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
Commercial broilers have a short production cycle and a high requirement for energy (3000 kcal/kg in starter phase and 3200 kcal/kg in finisher phase). Therefore, the need to add energy rich lipids to their diet is inevitable. Digestibility of fat depends on its multiple properties: chain length, the composition of fatty acids, ratio of saturated/unsaturated fatty acids and free fatty acids. The high cost of vegetable oils and less availability due to their consumption in human diet are the main reasons for searching cheaper alternative fat sources. Animal oils like poultry and fish oil are the by-product of rendering plants and after refining, they are used in poultry diets as an energy source. Due to presence of impurities and free fatty acids, the digestibility of animal fat is less. There is a limited amount of bile acids and lipase available during early age and when birds are reared on high energy diet (finisher phase). Supplementation of emusifier or lipase in broilers diet increase fat utilisation. Emulsifiers increase fat digestibility by increasing active surface area of lipid droplets. Lysolecithin and Lysophospholipids are produced from hydrolyses of lecithin and phospholipids by phopholipase A2. The bile acids mainly compose of cholic acid, hyodeoxycholic acid and chenodeoxycholic acid and have strong emulsification properties. Triacylglyceryl acylase (lipase) is an enzyme involved in catalysis and the hydrolysis of lipids. It can be concluded that use of emulsifier and lipase in broilers diet improves growth performance, nutrient digestibility and intestinal histology in broilers.
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Weng M, Zhang W, Zhang Z, Tang Y, Lai W, Dan Z, Liu Y, Zheng J, Gao S, Mai K, Ai Q. Effects of dietary lysolecithin on growth performance, serum biochemical indexes, antioxidant capacity, lipid metabolism and inflammation-related genes expression of juvenile large yellow croaker (Larimichthys crocea). FISH & SHELLFISH IMMUNOLOGY 2022; 128:50-59. [PMID: 35843522 DOI: 10.1016/j.fsi.2022.07.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/06/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
A 70-day feeding trial was conducted to investigate effects of dietary lysolecithin on growth performance, serum biochemical indexes, antioxidant capacity, lipid metabolism and inflammation-related genes expression of juvenile large yellow croaker (Larimichthys crocea) with initial weight of 6.04 ± 0.08 g. A formulated diet containing approximately 42% crude protein and 12.5% crude lipid was used as the control diet (CON). The other three experimental diets were formulated with supplementation of 0.2%, 0.4% and 0.6% lysolecithin based on the control diet, respectively. Results showed that weight gain rate (WGR) and specific growth rate (SGR) significantly increased in fish fed diets with lysolecithin compared with those in the control diet (P < 0.05). Fish fed diets with 0.4% and 0.6% lysolecithin had notably higher lipid content in muscle than that in the control diet (P < 0.05). When fish were fed diets with lysolecithin, serum high-density lipoprotein cholesterol (HDL-c) content was notably higher than that in the control diet (P < 0.05), while fish fed the diet with 0.6% lysolecithin had a significant lower serum low-density lipoprotein cholesterol (LDL-c) content than that in the control diet (P < 0.05). Meanwhile, serum aspartate transaminase (AST) and alanine transaminase (ALT) activities in fish fed diets with lysolecithin were remarkably lower than those in the control diet (P < 0.05). With the increase of dietary lysolecithin from 0.2% to 0.6%, mRNA expression of stearoyl-coenzyme A desaturase 1 (scd1), diacylglycerol acyltransferase 2 (dgat2) and sterol-regulatory element binding protein 1 (srebp1) showed decreasing trends. Furthermore, mRNA expression of carnitine palmitoyl transferase 1 (cpt1) and lipoprotein lipase (lpl) among each dietary lysolecithin treatment were significantly higher than those in the control diet (P < 0.05). In terms of inflammation, mRNA expression of tumor necrosis factor α (tnf-α) and interleukin-1 β (il-1β) were significantly down-regulated in fish fed diets with lysolecithin compared with those in the control diet (P < 0.05), while the mRNA expression of interleukin-10 (il-10) was significantly higher than that in the control diet (P < 0.05). In conclusion, dietary lysolecithin could promote the growth performance, improve hepatic lipid metabolism and regulate inflammation response in juvenile large yellow croaker, and the optimal supplement level of lysolecithin was approximately 0.4% in this study.
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Affiliation(s)
- Miao Weng
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Wencong Zhang
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Zhou Zhang
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Yuhang Tang
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Wencong Lai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Zhijie Dan
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Yongtao Liu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Jichang Zheng
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Shengnan Gao
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China
| | - Kangsen Mai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao, Shandong, 266237, PR China
| | - Qinghui Ai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, Qingdao, Shandong, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao, Shandong, 266237, PR China.
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Jiang Q, Wu W, Wan Y, Wei Y, Kawamura Y, Li J, Guo Y, Ban Z, Zhang B. Energy values evaluation and improvement of soybean meal in broiler chickens through supplemental mutienzyme. Poult Sci 2022; 101:101978. [PMID: 35793599 PMCID: PMC9260631 DOI: 10.1016/j.psj.2022.101978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/03/2022] [Accepted: 05/13/2022] [Indexed: 11/25/2022] Open
Abstract
This study measured the metabolizable energy of soybean meal (SBM) and evaluated effects of soybean meal specific enzymes supplementation in corn-soybean diets on growth performance, intestinal digestion properties and energy values of 28-day-old broilers. A total of 336 one-day-old male AA broiler chickens were distributed to 7 groups in a completely random design. The birds were given 7 diets containing 6 diets with different combined soybean meals and a fasting treatment, 8 replicates per treatment and 6 birds per replicate (Trial 1). A total of 672 one-day-old male AA broiler chickens were randomly allocated to 7 dietary treatments including a control diet and 6 diets supplemented with 300 mg/kg α-galactosidase, 200 mg/kg β-mannanase, and 300 mg/kg protease individually or in combination (Trial 2). Apparent metabolizable energy (AME) of broilers was measured from d 25 to 27 in both trial 1 and trial 2. The results showed that AME values of combined soybean meals averaged 2,894 kcal/kg. Dietary β-mannanase and protease supplementation increased body weight gain (P < 0.05) during d 0 to 14, whereas did not affect the growth performance (P > 0.05) during d 14 to 28. Addition of β-mannanase in combination with other enzymes significantly increased lipase and trypsin content (P < 0.05) in ileum. In addition, dietary β-mannanase and protease supplementation individually or in combination enhanced trypsin enzyme content in jejunum (P < 0.05). The β-mannanase enzyme enhanced villus height and villus height to crypt depth ratio (P < 0.05) of ileum compared with control diet. Moreover, supplementation of enzyme except for protease enhanced raffinose and stachyose degradation ratio (P < 0.05). Dietary β-mannanase supplementation individually or in combination enhanced AME and AMEn values (P < 0.05). This study demonstrated that dietary enzyme supplementation especially β-mannanase improved intestinal digestion properties and contributed to high energy values.
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Affiliation(s)
- Qiuyu Jiang
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China
| | - Wei Wu
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China
| | - Yan Wan
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China
| | - Yi Wei
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China
| | | | - Junyou Li
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, 319-0206, Japan
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China
| | - Zhibin Ban
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China; Laboratory of Animal Nutrition Metabolism, Jilin Academy of Agricultural Sciences, Gongzhuling, Jilin 136100, China
| | - Bingkun Zhang
- State Key Laboratory of Animal Nutrition, China Agricultural University, Beijing, 100193, China.
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Yaqoob MU, Yousaf M, Khan MI, Wang M. Effect of β-Mannanase Supplementation on Growth Performance, Ileal Digestibility, Carcass Traits, Intestinal Morphology, and Meat Quality in Broilers Fed Low-ME Diets. Animals (Basel) 2022; 12:1126. [PMID: 35565553 PMCID: PMC9104386 DOI: 10.3390/ani12091126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/15/2022] [Accepted: 04/18/2022] [Indexed: 11/16/2022] Open
Abstract
Experiment was designed to analyze the effect of low caloric diets, supplemented with β-mannanase on growth performance, carcass characteristics, nutrient digestibility, and other parameters in broilers. In this study, 400 broiler chicks were randomly divided into four treatments (Cont: without β-mannanase; LM-30, MM-60, and HM-90: supplemented with 200, 400, and 600 mg/kg β-mannanase, respectively). Dietary metabolizable energy (ME) in Cont was standard (starter diet 3100 kcal/kg; finisher diet 3200 kcal/kg) and reduced by 30, 60, and 90 kcal/kg, correspondingly in β-mannanase-supplemented treatments. The results exhibited that growth performance was not affected by reducing dietary energy levels with supplementation of β-mannanase. Ileal digestibility of DM and CF was improved (p < 0.01) by supplementation of β-mannanase at low dietary ME levels. Concerning carcass traits, the relative weight of breast meat, drumstick, and abdominal fat increased (p < 0.05) with β-mannanase supplementation in low-ME diets. Treatment HM-90 showed significantly (p < 0.05) better results regarding villus height and VH:CD. It could be concluded from the present results that supplementation of β-mannanase could improve the nutrient digestibility so that it is possible to reduce the dietary energy level without compromising production performance, carcass trails, and meat quality in broilers.
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Affiliation(s)
- Muhammad Umar Yaqoob
- Key Laboratory of Animal Nutrition and Feed Science (Eastern China), Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou 310058, China;
| | - Muhammad Yousaf
- Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad 38000, Pakistan;
| | - Muhammad Issa Khan
- National Institute of Food Science and Technology, University of Agriculture, Faisalabad 38000, Pakistan;
| | - Minqi Wang
- Key Laboratory of Animal Nutrition and Feed Science (Eastern China), Ministry of Agriculture, College of Animal Science, Zhejiang University, Hangzhou 310058, China;
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Wickramasuriya SS, Macelline SP, Kim E, Shin TK, Cho HM, Jayasena DD, Heo JM. Exogenous emulsifiers and multi-enzyme combination improves growth performance of the young broiler chickens fed low energy diets containing vegetable oil. Anim Biosci 2022; 35:1585-1591. [PMID: 35468275 PMCID: PMC9449380 DOI: 10.5713/ab.22.0024] [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: 01/14/2022] [Accepted: 03/03/2022] [Indexed: 11/29/2022] Open
Abstract
Objective The present study examined the effects of exogenous emulsifiers and multi-enzyme supplementation into a low energy density diet on growth performance, visceral organ parameters, blood metabolites, ileal morphology, and nutrient digestibility in broiler chickens from hatch to 21 days. Methods One hundred and sixty-eight one-day-old Ross 308 broiler chickens were allocated in a completely randomized design to 24 pens and each pen was assigned to one of four dietary treatments to give six replications with seven chickens in a cage. Dietary treatments were: i) positive control with standard energy level (PC); ii) negative control with 100 kcal/kg lower energy of the standard level (NC); iii) NC diet supplemented 0.05% calcium stearoyl-2 lactylate as an emulsifier (NC+E); and iv) NC diet supplemented with both 0.05% calcium stearoyl-2 lactylate and 0.05% multi-enzyme (NC+E+M). Corn and soybean meal-based control diets containing vegetable oil were formulated to meet the Ross 308 nutrition specification. Chickens were fed ad-libitum with the treatment diets and sampling was conducted on day 21. Results Our results revealed that emulsifier and multi-enzyme supplementation into NC diets improved (p<0.05) feed efficiency of the broiler chickens compared to the broiler chickens fed NC diets from hatch to 21 days. Supplementation of emulsifier and multi-enzyme into NC diet improved (p<0.05) nutrient digestibility of the broiler chickens. However, emulsifier and multi-enzymesupplementation into diet did not influence (p>0.05) visceral organ weight, blood metabolites, and intestinal morphology in broiler chickens fed NC diets. Conclusion Supplementation of emulsifier and multi-enzyme in the NC diet would support improving growth performance in young broiler chickens with improved feed efficiency and increased nutrient digestibility thereby curtailing the negative impact of energy reduction in the diets.
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Affiliation(s)
| | - Shemil Priyan Macelline
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.,School of Life and Environmental Sciences, Faculty of Science, University of Sydney, Sydney 2006, Australia
| | - Eunjoo Kim
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.,School of Environmental and Rural Science, University of New England, Armidale, NSW, 2351, Australia
| | - Taeg Kyun Shin
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea
| | - Hyun Min Cho
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea
| | - Dinesh D Jayasena
- Department of Animal Science, Uva Wellassa University, Badulla 90000, Sri Lanka
| | - Jung Min Heo
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea
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10
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Ghazalah A, Abd-Elsamee M, Ibrahim M, Abdelgayed SS, Abdelkader M, Gonzalez-Sanchez D, Wealleans A. Effects of a Combination of Lysolecithin, Synthetic Emulsifier, and Monoglycerides on Growth Performance, Intestinal Morphology, and Selected Carcass Traits in Broilers Fed Low-Energy Diets. Animals (Basel) 2021; 11:ani11113037. [PMID: 34827770 PMCID: PMC8614300 DOI: 10.3390/ani11113037] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Lysolecithin is produced from the enzymatic conversion of lecithin, resulting in a smaller molecule better able to improve the process of digestion of fats and oils than its progenitor. In broiler production, lysolecithin can improve performance when added to nutritionally adequate diets, but also when diets are reformulated to provide lower levels of energy and amino acids. Low-energy diets may provide more ‘space’ for growth improvements, but there is a scarcity of data on the effect of lysolecithin when added to low-energy diets containing only intact fat from raw feed ingredients. Moreover, the ability of pure lysolecithin to improve energy digestion and absorption can be further improved by the addition of synthetic emulsifiers and monoglycerides. The present study aims to evaluate the effect of supplementing a combination of lysolecithin, synthetic emulsifier, and monoglycerides on growth performance, intestinal morphology, carcass traits, and meat characteristics in broilers fed commercially relevant low-energy diets without added oil. The results revealed that this combination could effectively improve growth performance, carcass characteristics, and intestinal morphology of broiler chickens. Abstract This study aimed to evaluate the effect of supplementing a combination of lysolecithin, synthetic emulsifier, and monoglycerides (LEX) on growth performance, intestinal morphology, and selected carcass traits in broilers fed low-energy diets without added oil. Three hundred one-day-old Arbor Acres (AA) broilers (40.3 ± 3.3 g) were assigned to two dietary treatments with six replicates of 25 birds each and were fed a control low-energy diet without added oil supplemented with 0 and 250 g/t of LEX for 30 days. Growth performance was measured and recorded throughout the study. At slaughter, 60 birds per treatment were used to assess the effect of LEX on the carcass traits. Final average body weight and feed conversion ratio were improved (p < 0.05) in LEX treated birds compared to control. LEX supplementation was linked to higher (p < 0.05) carcass weight and yield and to lower (p < 0.05) abdominal fat and liver weight. Moisture content was higher (p < 0.05) in ground deboned broilers from LEX treatment. Villus height was increased (p < 0.05), and crypt depth reduced (p < 0.05) in the jejunum of birds treated with LEX. This study demonstrates that supplementation of LEX to a low-energy diet without added oil improved performance, carcass weight and yield, reduced abdominal fat deposition, and improved intestinal morphology in broiler chickens.
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Affiliation(s)
- Abdallah Ghazalah
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; (A.G.); (M.A.-E.); (M.I.)
| | - Mamdouh Abd-Elsamee
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; (A.G.); (M.A.-E.); (M.I.)
| | - Moataz Ibrahim
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza 12613, Egypt; (A.G.); (M.A.-E.); (M.I.)
- R&D Department, Feed Division, Cairo Poultry Company, Giza 12613, Egypt
| | - Sherein S. Abdelgayed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Egypt;
| | - Mohamed Abdelkader
- Kemin Animal Nutrition and Health, 2200 Herentals, Belgium; (M.A.); (A.W.)
| | - David Gonzalez-Sanchez
- Kemin Animal Nutrition and Health, 2200 Herentals, Belgium; (M.A.); (A.W.)
- Correspondence:
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11
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Enhancing Growth Performance, Organ Development, Meat Quality, and Bone Mineralisation of Broiler Chickens through Multi-Enzyme Super-Dosing in Reduced Energy Diets. Animals (Basel) 2021; 11:ani11102791. [PMID: 34679813 PMCID: PMC8532949 DOI: 10.3390/ani11102791] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 11/17/2022] Open
Abstract
Simple Summary The global population is expected to rise from 7.2 billion as of 2019 to 9.7 billion in 2050, putting pressure on farmers to increase production capacity to ensure food security whilst simultaneously improving food sustainability. Poultry is an important meat, as chickens have high feed efficiencies and short production cycles, making it an affordable, nutritious source of protein. Strategies to improve the production performance of broilers will require significant research; one nutritional strategy is improving the efficiency of feed utilization via the addition of exogenous enzymes into diets. This study aimed to identify the optimal multienzyme, Natuzyme, dose rate at three energy levels based on production performance, organ development, meat quality, and bone mineralization in broiler chickens. Results revealed that all dose rates of Natuzyme were able to mitigate the negative effect of energy reductions. Organ development and meat quality remained consistent across treatment groups, except for the gizzard and meat moisture content, which were affected by super-dosing Natuzyme. Bone mineralization was restored with the inclusion of Natuzyme. In conclusion, super-dosing Natuzyme in reduced energy diets at a dose rate of 700 g/t can improve performance parameters and thus profitability for producers and can improve the sustainability of production. Abstract This study identified the optimal multi-enzyme dose rate at three energy levels based on the production performance of broiler chickens. A 42-day grow out trial was conducted using 576 day-old mixed-sex ROSS308 broiler chickens in a 3 × 4 factorial arrangement in a completely randomized design. Diets consisting of three metabolizable energy (ME) levels: standard energy (STD), 150 kcal/kg energy reduction (STD-150), and 200 kcal/kg energy reduction (STD-200), were cross factored with four multi-enzyme inclusion levels (0, 350, 700, and 1000 g/ton). The average daily feed intake and feed conversion ratio increased linearly (p < 0.001) as the dietary ME was reduced, and the multi-enzyme addition improved the feed conversion ratio (p < 0.05) and mitigated the negative effect of the reduced energy diets (RED) on feed intake and feed conversion ratios. Carcass composition, organ weights, and meat quality were not affected by the experimental diets. The RED decreased abdominal fat weight (p < 0.05). Total ash, calcium, and phosphorous contents of the tibia bone were improved (p < 0.04) when the RED were supplemented with the multi-enzyme. Super-dosing multi-enzymes in RED mitigates the negative effect of ME reduction on growth performance while maintaining organ development and meat quality and improving bone mineral content.
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12
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Supplementation of Bile Acids and Lipase in Broiler Diets for Better Nutrient Utilization and Performance: Potential Effects and Future Implications – A Review. ANNALS OF ANIMAL SCIENCE 2021. [DOI: 10.2478/aoas-2020-0099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Abstract
Bile acids are used for better emulsification, digestion and absorption of dietary fat in chicken, especially in early life. Similarly, exogenous lipases have also been used for the improvement of physiological limitation of the chicken digestive system. Owing to potential of both bile acids and lipases, their use has been increased in recent years, for better emulsification of dietary fat and improvement of growth performance in broilers. In the past, pancreatic lipases were used for supplementation, but recently, microbial lipase is getting attention in poultry industry as a hydrolysis catalyst. Bile acids strengthen the defence mechanism of body against bacterial endotoxins and also play a key role in lipid regulation and sugar metabolism as signaling molecules. It has been demonstrated that bile acids and lipases may improve feed efficiency by enhancing digestive enzyme activity and ultimately leading to better fat digestion and absorption. Wide supplemental range of bile acids (0.004% to 0.25%) and lipases (0.01% to 0.1%) has been used in broiler diets for improvement of fat digestibility and their performance. Combinations of different bile acids have shown more potential to improve feed efficiency (by 7.14%) even at low (0.008%) levels as compared to any individual bile acid. Lipases at a lower level of 0.03% have exhibited more promising potential to improve fat digestibility and feed efficiency. However, contradicting results have been published in literature, which needs further investigations to elucidate various nutritional aspects of bile acids and lipase supplementation in broiler diet. This review focuses on providing insight on the mechanism of action and potential application of bile acids and lipases in broiler diets. Moreover, future implications of these additives in poultry nutrition for enhancing nutrient utilization and absorption are also discussed.
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13
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Shahid I, Sharif M, Yousaf M, Ahmad F, Virk MR, Bilal MQ, Anwar U, Ali A, Hussain M, Chishti MFA, Rahman MA. Effect of Exogenous Emulsifier (Lyso-Phospholipid) Supplementation in the Broiler Diet, on the Feed Intake and Growth Performance During Grower Phase. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2021. [DOI: 10.1590/1806-9061-2020-1354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- I Shahid
- University of Agriculture, Pakistan
| | - M Sharif
- University of Agriculture, Pakistan
| | - M Yousaf
- University of Agriculture, Pakistan
| | - F Ahmad
- University of Agriculture, Pakistan
| | - MR Virk
- University of Agriculture, Pakistan
| | - MQ Bilal
- University of Agriculture, Pakistan
| | - U Anwar
- University of Agriculture, Pakistan
| | - A Ali
- University of Agriculture, Pakistan
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14
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Hussein EOS, Suliman GM, Alowaimer AN, Ahmed SH, Abd El-Hack ME, Taha AE, Swelum AA. Growth, carcass characteristics, and meat quality of broilers fed a low-energy diet supplemented with a multienzyme preparation. Poult Sci 2020; 99:1988-1994. [PMID: 32241481 PMCID: PMC7587662 DOI: 10.1016/j.psj.2019.09.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/22/2019] [Accepted: 09/29/2019] [Indexed: 11/29/2022] Open
Abstract
The effect of a low-ME diet with a multienzyme (Kemzyme Plus, Kemin, Des Moines, IA) blend on performance, meat quality, and carcass traits was evaluated in Hubbard broiler chicks. A total of 120 Hubbard broiler chicks were allocated to the following 4 experimental groups and every group was separated into 6 replicates, with 5 birds per replicate: control (3,180 kcal/kg of ME), control + 0.50 g/kg diet of enzyme (Cont-Enz), low-ME diet (3,080 kcal/kg), and low-ME + 0.50 g/kg diet of enzyme (low-ME-Enz). The trail lasted for 16 D (32 to 48 D of age). No significant differences in growth parameters or carcass traits were observed among treatments. However, liver weight increased with the low-ME-Enz diet (P = 0.038). The low-ME diet recorded the highest weight for the bursa (P = 0.043) and thymus (P = 0.019). Dietary treatments had significant impacts on the length of duodenum, ileum, and cecum, as well as the weight of duodenum. The length of duodenum, ileum, and cecum increased with enzyme supplementation. The myofibril fragmentation index was lower with the Cont-Enz, low-ME, and low-ME-Enz diets than with the control diet (P = 0.043). The shear force increased with the low-ME-Enz diet (P = 0.022) than the control diet. Dietary treatments influenced breast meat yellowness (P = 0.019), whereas the low-ME diet had the lowest yellowness at the slaughtering age. The dietary treatments affected the breast meat pH (P = 0.001), with the control diet having the highest pH value after 24 hours. Thus, there was no effect of low-ME or enzyme supplementation to the control or low-ME diet on growth performance or carcass yield. However, feeding a low-ME diet or Cont-Enz preparation influenced organ and small intestine weights and meat characteristics.
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Affiliation(s)
- E O S Hussein
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Saudi Arabia.
| | - G M Suliman
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Saudi Arabia; Department of Meat Production, Faculty of Animal Production, University of Khartoum, Sudan
| | - A N Alowaimer
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Saudi Arabia
| | - S H Ahmed
- Department of Basic Sciences, College of Veterinary Medicine, Sudan University of Science and Technology, Sudan
| | - M E Abd El-Hack
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - A E Taha
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina 22758, Egypt
| | - A A Swelum
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Saudi Arabia; Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.
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15
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Arshad MA, Bhatti SA, Hassan I, Rahman MA, Rehman MS. Effects of Bile Acids and Lipase Supplementation in Low-Energy Diets on Growth Performance, Fat Digestibility and Meat Quality in Broiler Chickens. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2020. [DOI: 10.1590/1806-9061-2020-1258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | - I Hassan
- Sharif Feed Mills (Pvt.) Ltd, Pakistan
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16
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Hussein EOS, Suliman GM, Abudabos AM, Alowaimer AN, Ahmed SH, Abd El-Hack ME, Alagawany M, Swelum AA, Tinelli A, Tufarelli V, Laudadio V. Effect of a low-energy and enzyme-supplemented diet on broiler chicken growth, carcass traits and meat quality. Arch Anim Breed 2019; 62:297-304. [PMID: 31807640 PMCID: PMC6852863 DOI: 10.5194/aab-62-297-2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/16/2019] [Indexed: 11/25/2022] Open
Abstract
The objective of this
study was to evaluate the impact of a low metabolizable energy (low-ME) diet
supplemented with a multienzyme blend
(KEMZYME®) on the growth performance, carcass
traits and meat quality of chickens. A total of 108 broiler chicks (Ross 308)
were randomly allocated to three experimental groups with six replicates per
treatment and five birds per replicate; the groups were treated as follows: a control diet with no additive
and standard metabolizable energy (ME; 3200 kcal kg-1); a low metabolizable energy (low-ME; 3000 kcal kg-1) diet;
and a low-ME diet + 0.5 g kg-1 diet of enzyme (low-ME–Enz). Live
body weight (LBW) at 43 and 47 d and body weight gain (BWG) during the periods from
38 to 43, 43 to 47 and 33 to 47 d decreased with the low-ME and low-ME–Enz diets in
comparison with the control-diet (p<0.05). The values of the feed
conversion ratio (FCR) were significantly increased with low-ME diets with or
without enzyme at all growing stages. There were no significant differences
among treatments in terms of carcass traits. With the exception of the jejunum
weight, dietary treatments did not affect any digestive tract segments. Meat
hardness decreased with the low-ME–Enz diet compared with the other diets (P=0.039). Meat yellowness of the breast muscle increased (P=0.001) with the
low-ME–Enz diet in comparison with the other treatments at 24 h
post-slaughter. In conclusion, the low-ME diet supplemented with
KEMZYME® did not influence most of
performance parameters and carcass traits of chickens; however, adding
enzymes to the low-ME diet is an effective strategy to improve the meat quality
criteria and small intestine characteristics.
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Affiliation(s)
- Elsayed O S Hussein
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Gamaleldin M Suliman
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.,Department of Meat Production, Faculty of Animal Production, University of Khartoum, Khartoum 1334, Sudan
| | - Alaeldein M Abudabos
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Abdullah N Alowaimer
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Shamseldein H Ahmed
- Department of Basic Sciences, College of Veterinary Medicine, Sudan University of Science and Technology, Khartoum, Sudan
| | - Mohamed E Abd El-Hack
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Ayman A Swelum
- Department of Basic Sciences, College of Veterinary Medicine, Sudan University of Science and Technology, Khartoum, Sudan.,Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt
| | - Antonella Tinelli
- Department of Veterinary Medicine, Section of Veterinary Pathology and Comparative Oncology, University of Bari "Aldo Moro", Valenzano 70010, Bari, Italy
| | - Vincenzo Tufarelli
- Department of DETO, Section of Veterinary Science and Animal Production, University of Bari "Aldo Moro", Valenzano 70010, Bari, Italy
| | - Vito Laudadio
- Department of DETO, Section of Veterinary Science and Animal Production, University of Bari "Aldo Moro", Valenzano 70010, Bari, Italy
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