1
|
Al-Harthi MA, Attia YA, Elgandy MF, Bovera F. The effects of Moringa peregrina seed meal, autoclaving, and/or exogenous enzyme cocktail on performance, carcass traits, meat quality, and blood lipids of broilers. Front Vet Sci 2023; 10:1158468. [PMID: 37476825 PMCID: PMC10354260 DOI: 10.3389/fvets.2023.1158468] [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: 02/03/2023] [Accepted: 04/11/2023] [Indexed: 07/22/2023] Open
Abstract
The effects of Moringa peregrina seed meal (MPSM), autoclaving, and/or enzyme cocktail addition on performance, profitability, carcass traits, meat quality, and blood lipids of broilers between 1 and 35 d of age were investigated. Seven experimental diets were employed: the control 0% MPSM, 10% raw MPSM, 10% autoclaved MPSM (at a temperature of 120°C and 1 kg/cm2 pressure for 30 min), 10% raw MPSM supplemented with enzymes at 0.1 or 0.2 g/kg feed, and 10% autoclaved MPSM supplemented with the same previous enzymes and doses. Each diet was fed to 8 replicates with 5 broilers in each. At the end of the experiment, 3 broilers from each replicate were randomLy chosen to determine carcass traits, meat quality, and blood lipids. Findings at 35 d of age indicated that all 10% raw MPSM treatments with or without enzymes addition impaired growth, feed conversion (FCR), and profitability (p < 0.05), but increased feed intake (p < 0.05) and did not affect mortality when compared with the control group. The 10% autoclaved MPSM treatments with or without enzymes addition increased feed intake (p < 0.05) when compared with the control group, inducing growth equal to the control group (p > 0.05), and improving FCR and profitability. Enzymes addition to raw MPSM did not produce positive effects (p < 0.05), and no additive effect was observed when autoclaving and enzymes addition were combined (p > 0.05) as compared to the autoclaving group. Carcass traits, meat quality, and blood lipids were not significantly affected by MPSM, autoclaving, and enzymes addition. However, intestine, cecum, and gizzard percentages increased (p < 0.05) with all 10% raw MPSM treatments, while all 10% autoclaved MPSM treatments could return these values (p > 0.05) to the control group, except with gizzard, which exhibited less improvement. Additionally, all autoclaved groups had lower meat pH measured 24 h postmortem (p <0.05) compared to the control group. In conclusion, autoclaved MPSM can be included in broilers' diets at a 10% level without negative effects on performance, carcass traits, meat quality, and blood lipids. This indicates that autoclaving alone is adequate.
Collapse
Affiliation(s)
- Mohammed A. Al-Harthi
- Department of Agriculture, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Youssef A. Attia
- Department of Agriculture, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohamed F. Elgandy
- Department of Agriculture, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fulvia Bovera
- Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, Napoli, Italy
| |
Collapse
|
2
|
Attia YA, Al-Harthi MA, Shafi ME, Abdulsalam NM, Nagadi SA, Wang J, Kim WK. Amino Acids Supplementation Affects Sustainability of Productive and Meat Quality, Survivability and Nitrogen Pollution of Broiler Chickens during the Early Life. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122100. [PMID: 36556465 PMCID: PMC9784974 DOI: 10.3390/life12122100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/29/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
The response to amino acid (AAs) supplementation on broiler production, carcass and meat traits and nitrogen in the excreta during the early growth period was evaluated. Two experiments were performed during 1-28 d (245 birds, experiment 1) and 1-21 d of age (455 birds, experiment 2). In both experiments, the positive control (PC) diet had 22.5% crude protein (CP) and the negative control group (NC) diet had around 18% CP with the same methionine (Met) plus lysine (Lys) concentration as the PC diet. In experiment 1, the NC diet was fed to the other five groups supplemented with synthetic amino acids, such as L-arginine (Arg), L-threonine (Thr), L-valine (Val), L-isoleucine (Ile) or all these AAs, respectively. In experiment 2, the NC diet was formulated to contain 18% CP with either corn-soybean meal and animal protein or with only vegetable protein. Both NC diets were offered to the other ten groups with synthetic amino acids such as L-Arg, L-Thr, L-Val, L-tryptophan (Trp) or a combination of all these AAs plus L-isoleucine (Ile), respectively. In conclusion, broilers fed 18% CP supplemented with DL-Met plus L-Lys showed lower performance and a European production efficiency value (EPEV); Arg, Thr and Val addition improved growth, the feed conversion ratio and EPEV of the diets containing animal protein only, but broiler performance and EPEV was lower than with PC, indicating that DL-Met, L-Lys, L-Arg, L-Thr and L-Val supplementation may be limited in low-protein diets. Furthermore, a low-protein diet supplemented with amino acids did not affect the survivability of broilers up to 28 days of age.
Collapse
Affiliation(s)
- Youssef A. Attia
- Sustainable Agriculture Research Group, Department of Agriculture, Faculty of Environment Sciences, King Abdulaziz University, Jeddah 80269, Saudi Arabia
- Correspondence: (Y.A.A.); (W.K.K.)
| | - Mohammed A. Al-Harthi
- Sustainable Agriculture Research Group, Department of Agriculture, Faculty of Environment Sciences, King Abdulaziz University, Jeddah 80269, Saudi Arabia
| | - Manal E. Shafi
- Sustainable Agriculture Research Group, Department of Biological Sciences, Zoology, Faculty of Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Nisreen M. Abdulsalam
- Sustainable Agriculture Research Group, Department of Food and Nutrition, Faculty of Human Sciences and Design, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sameer A. Nagadi
- Sustainable Agriculture Research Group, Department of Agriculture, Faculty of Environment Sciences, King Abdulaziz University, Jeddah 80269, Saudi Arabia
| | - Jinquan Wang
- Sustainable Agriculture Research Group, Department of Poultry Science, University of Georgia, Athens, GA 30602-2772, USA
| | - Woo K. Kim
- Sustainable Agriculture Research Group, Department of Poultry Science, University of Georgia, Athens, GA 30602-2772, USA
- Correspondence: (Y.A.A.); (W.K.K.)
| |
Collapse
|
3
|
Alhotan RA, Al-Sagan AA, Al-Abdullatif AA, Hussein EOS, Saadeldin IM, Azzam MM, Swelum AA. Interactive effects of dietary amino acid density and environmental temperature on growth performance and expression of selected amino acid transporters, water channels, and stress-related transcripts. Poult Sci 2021; 100:101333. [PMID: 34274571 PMCID: PMC8318993 DOI: 10.1016/j.psj.2021.101333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/04/2021] [Accepted: 06/10/2021] [Indexed: 02/03/2023] Open
Abstract
Exposure to heat stress (HS) is one of the challenges facing the broiler industry worldwide. Various nutritional strategies have been suggested, such as altering dietary concentrations of some nutrients. Thus, we evaluated feeding different amino acid (AA) densities on live performance, Pectoralis (P.) muscles, and expression of selected AA transporters, water channels, and stress-related transcripts in a fast-growing broiler strain. Ross 308 chicks (n = 576) were randomly assigned to 4 dietary treatments (24 reps, 6 chicks per rep), differing in AA density (110, 100, 90, and 80% of a breeder's AA specifications). During 24 to 36 days of age, half of the birds were kept at a thermoneutral (TN) temperature of 20°C, whereas the other half were subjected to HS at 32° C for 8 h daily, making the treatment design a 4 × 2. The results revealed no interaction between housing temperature and AA density on growth performance or P. muscles weights. Feeding 80% AAs depressed BWG, FCR, and P. muscles at 36 d (P < 0.001). There was an interaction (P < 0.001) between AA density and temperature on the expression of all examined genes. Reducing the AA density beyond 100% upregulated the expression of AA transporter (CAT1, B0AT, b0,+AT, SNAT1, LAT1), HSP70, HSP90, glucocorticoid receptor (GR), and AQP3 in the TN birds’ jejunum. Whereas in the HS birds, inconsistent expressions were observed in the jejunum, of which CAT1, B0AT, and LAT1 were markedly downregulated as AA density was reduced. In P. major of TN birds, reducing AA density resulted in upregulating the expression of all AA transporters, HSP70, GR, and AQP1, while downregulating HSP90 and AQP9. In contrast, AA reduction markedly downregulated CAT1, B0AT, and LAT1 in the P. major of HS birds. These findings indicate that the dietary AA level alters the expression of various genes involved in AA uptake, protein folding, and water transport. The magnitude of alteration is also dependent on the housing temperature. Furthermore, the results highlight the importance of adequate AA nutrition for fast-growing chickens under HS.
Collapse
Affiliation(s)
- R A Alhotan
- Department of Animal Production, King Saud University, King Abdullah Road, Riyadh 11451, Saudi Arabia.
| | - A A Al-Sagan
- King Abdulaziz City for Science & Technology, Riyadh 11442, Saudi Arabia
| | - A A Al-Abdullatif
- Department of Animal Production, King Saud University, King Abdullah Road, Riyadh 11451, Saudi Arabia
| | - E O S Hussein
- Department of Animal Production, King Saud University, King Abdullah Road, Riyadh 11451, Saudi Arabia
| | - I M Saadeldin
- Department of Animal Production, King Saud University, King Abdullah Road, Riyadh 11451, Saudi Arabia
| | - M M Azzam
- Department of Animal Production, King Saud University, King Abdullah Road, Riyadh 11451, Saudi Arabia; Department of Poultry Production, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - A A Swelum
- Department of Animal Production, King Saud University, King Abdullah Road, Riyadh 11451, Saudi Arabia
| |
Collapse
|
4
|
Caetano V, Demuner L, Suckeveris D, Muñoz J, Faria Filho D, Faria D. Exigência de lisina digestível de frangos de corte machos de 22 a 42 dias de idade. ARQ BRAS MED VET ZOO 2020. [DOI: 10.1590/1678-4162-11480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO O objetivo deste estudo foi determinar a exigência de lisina digestível para frangos de corte machos sob as características de desempenho, composição corporal e rendimento de carcaça dos animais, de 22 a 42 dias de idade. As dietas diferiram quanto aos níveis de lisina digestível, mantendo-se a relação dos demais aminoácidos com a lisina. Foram utilizados seis níveis de lisina digestível: 0,88%; 0,96%; 1,05%; 1,13%; 1,22%; e 1,30%. Distribuídos em 36 unidades experimentais de 36 aves cada, 1296 animais da linhagem Cobb - 500® tiveram as seguintes características de desempenho avaliadas: consumo de ração (CR), peso corporal (PC), ganho de peso (GP), conversão alimentar (CA), viabilidade criatória (VC) e índice de eficiência produtiva (IEP). Aos 42 dias de idade, foram selecionadas ao acaso cinco aves para avaliação do rendimento de carcaça, e duas para avaliação da composição corporal. A CA, o IEP e o rendimento de peito foram influenciados, sendo sua exigência de 1,30%, sugerindo que níveis maiores de lisina digestível que as recomendações utilizadas como base neste estudo (1,13%) trouxeram benefícios aos animais sobre essas características.
Collapse
|
5
|
Rubio A, Hess J, Berry W, Dozier W, Pacheco W. Effects of Feed Form and Amino Acid Density on Productive and Processing Performance of Broilers. J APPL POULTRY RES 2020. [DOI: 10.3382/japr/pfz032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
6
|
Bryan DDLS, Abbott DA, Classen HL. The influence of indigestible protein on the performance and meat quality of broilers vaccinated for coccidiosis. Poult Sci 2019; 98:4815-4828. [PMID: 30995312 DOI: 10.3382/ps/pez216] [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] [Received: 10/10/2018] [Accepted: 03/25/2019] [Indexed: 11/20/2022] Open
Abstract
High dietary protein and the use of poorly digested protein sources have been suggested to negatively impact broiler health, possibly because of protein fermentation in the distal intestinal tract. The effect of dietary protein levels with low or high indigestible protein fractions (LIP or HIP) on male and female broiler performance were evaluated. The trial was completely randomized with a 2 × 3 × 2 factorial arrangement, where gender, dietary protein levels (24, 26, and 28%), and dietary protein digestible fractions were the main factors. Ross 308 male (1944) and female (2232) were allocated to 72 pens with 54 males or 62 females per pen. Six grower diets 24-LIP, 24-HIP, 26-LIP, 26-HIP, 28-LIP, and 28-HIP were fed from 0 to 32 D of age. Birds were vaccinated with Coccivac-B52 on day 5, and feed intake and BW were recorded on 0, 12, 22, and 32 D. On day 32, 24 birds per treatment were processed for meat yield. Males were heavier than females at all post-hatch ages and the LIP birds were heavier than their HIP counterparts on 32 D. On day 22, birds fed 24 and 26% CP were heavier than those fed 28% CP. Birds fed the 28-LIP diet consumed less total feed than their 24 and 26-LIP equivalents. Birds fed 24% CP had the highest total feed to gain ratio, whereas LIP fed birds had a lower total feed to gain than those fed HIP diets. LIP diets resulted in higher total mortality than the HIP diets. Carcass yield was higher for females than males, increased with CP level, and was lower in HIP than LIP birds. An interaction between CP level and protein digestibility resulted in the 26 and 28-LIP having higher breast yield than all other diets. In conclusion, broiler growth performance and meat yield were affected by dietary indigestible protein alone or in combination with gender and dietary CP level.
Collapse
Affiliation(s)
- D D L S Bryan
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7N5A8, Canada
| | - D A Abbott
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7N5A8, Canada
| | - H L Classen
- Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK S7N5A8, Canada
| |
Collapse
|
7
|
Changes in body composition and meat quality in response to dietary amino acid provision in finishing broilers. Animal 2018; 13:1094-1102. [PMID: 30289100 DOI: 10.1017/s1751731118002306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
In order to control and optimize chicken quality products, it is necessary to improve the description of the responses to dietary amino acid (AA) concentration in terms of carcass composition and meat quality, especially during the finishing period. The aim of this study was to investigate the effects of Lysine (Lys, i.e. a limiting AA used as reference in AA nutrition) and AA other than Lys (AA effect). In total, 12 experimental diets were formulated with four levels of digestible Lys content (7, 8.5, 10 and 11.5 g/kg) combined with either a low (AA-), adequate control (AAc) and high (AA+) amount of other essential AA (EAA) expressed as a proportion of Lys. They were distributed to male Ross PM3 from 3 to 5 weeks of age. No significant AA×Lys interaction was found for growth performance or carcass composition. Body weight and feed conversion ratio were significantly improved by addition of Lys but were impaired in broilers receiving the AA- diets, whereas breast meat yield and abdominal fat were only affected by Lys. No additional benefit was found when the relative amount of other EAA was increased. There was a significant AA×Lys interaction on most of the meat quality traits, including ultimate pH, color and drip loss, with a significant effect of both AA and Lys. For example, AA- combined with reduced Lys level favored the production of meat with high ultimate pH (>6.0), dark color and low drip loss whereas more acid, light and exudative meat (<5.85) was produced with AA+ combined with a low Lys level. In conclusion, growth performance, carcass composition and meat quality are affected by the levels of dietary Lys and AA in finishing broilers. In addition, interactive responses to Lys and AA are found on meat quality traits, leading to great variations in breast pHu, color and drip loss according AA balance or imbalance.
Collapse
|
8
|
Hussain M, Mahmud A, Hussain J, Qaisrani SN, Mehmood S, Rehman A. Subsequent Effect of Dietary Lysine Regimens Fed in the Starter Phase on the Growth Performance, Carcass Traits and Meat Chemical Composition of Aseel Chicken in the Grower Phase. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2018. [DOI: 10.1590/1806-9061-2017-0681] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- M Hussain
- University of Veterinary and Animal Sciences, Pakistan
| | - A Mahmud
- University of Veterinary and Animal Sciences, Pakistan
| | - J Hussain
- University of Veterinary and Animal Sciences, Pakistan
| | - SN Qaisrani
- University of Veterinary and Animal Sciences, Pakistan
| | - S Mehmood
- University of Veterinary and Animal Sciences, Pakistan
| | - A Rehman
- University of Agriculture, Pakistan
| |
Collapse
|
9
|
Hussain M, Mahmud A, Hussain J, Qaisrani SN. Effect of Dietary Lysine Regimens on Growth Performance and Meat Composition in Aseel Chicken. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2018. [DOI: 10.1590/1806-9061-2017-0584] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- M Hussain
- University of Veterinary and Animal Sciences, Pakistan
| | - A Mahmud
- University of Veterinary and Animal Sciences, Pakistan
| | - J Hussain
- University of Veterinary and Animal Sciences, Pakistan
| | - SN Qaisrani
- University of Veterinary and Animal Sciences, Pakistan
| |
Collapse
|
10
|
Combined effect of divergent selection for breast muscle ultimate pH and dietary amino acids on chicken performance, physical activity and meat quality. Animal 2016; 11:335-344. [PMID: 27476550 DOI: 10.1017/s1751731116001580] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Responses to changes in dietary Lys and other essential amino acid (AA) concentrations were evaluated in 480 male and female broilers originating from two lines divergently selected for high (pHu+) or low (pHu-) ultimate pH (pHu) of breast muscle. The two genetic lines were fed with two grower isoenergetic diets differing in both true digestible Lys (control=10.2 g/kg and experimental=7.0 g/kg) and amounts of other essential AA calculated in relation to Lys, which were sufficient for the control diet or in excess for the experimental diet. There were six repetitions per treatment. Birds were weighed individually at days 0, 21, 28 and 43. Feed consumption was recorded per pen and feed conversion was calculated over the growing period. The physical activity and walking ability of broilers were recorded during the whole rearing period. Breast and leg yield, and abdominal fat percentage were measured at 43 days of age, as were pHu, color, drip and cooking loss, Warner-Bratzler shear force, and curing-cooking yield of the breast Pectoralis major and pHu of the thigh Sartorius muscle. Divergent selection greatly affected most breast meat quality traits without significantly changing growth rate or feed efficiency. When subjected to a variation in dietary intake of AA, birds from the two genotypes responded in a similar way in terms of animal's growth, feed efficiency, body composition and meat quality traits. Although line and diet did not affect physical or feeding activities of the broilers, a significant effect of line-by-diet interaction was observed on gait score. Contrary to the pHu- birds, the walking ability of pHu+ birds was impaired when fed the control diet that favored growth and breast muscle development and limited storage of carbohydrate in muscle.
Collapse
|
11
|
Zhai W, Peebles E, Schilling M, Mercier Y. Effects of dietary lysine and methionine supplementation on Ross 708 male broilers from 21 to 42 d of age (I): growth performance, meat yield, and cost effectiveness. J APPL POULTRY RES 2016. [DOI: 10.3382/japr/pfw002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
12
|
Zhai W, Schilling M, Jackson V, Peebles E, Mercier Y. Effects of dietary lysine and methionine supplementation on Ross 708 male broilers from 21 to 42 days of age (II): breast meat quality. J APPL POULTRY RES 2016. [DOI: 10.3382/japr/pfw003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
13
|
Basurco V, Vieira S, Serafini N, Santiago G, Angel C, Gonzalez-Esquerra R. Performance and economic evaluation of feeding programs varying in energy and protein densities for broiler grillers. J APPL POULTRY RES 2015. [DOI: 10.3382/japr/pfv030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
14
|
Zhai W, Peebles E, Mejia L, Zumwalt C, Corzo A. Effects of dietary amino acid density and metabolizable energy level on the growth and meat yield of summer-reared broilers. J APPL POULTRY RES 2014. [DOI: 10.3382/japr.2014-00961] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
15
|
Ebling PD, Ribeiro AML, Trevizan L, Silva ICMD, Kessler ADM, Rubin LL. Effect of different dietary concentrations of Amino Acids on the performance of two different Broiler Strains. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2013. [DOI: 10.1590/s1516-635x2013000400008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- PD Ebling
- Universidade Federal do Rio Grande do Sul
| | | | - L Trevizan
- Universidade Federal do Rio Grande do Sul
| | | | | | - LL Rubin
- Universidade Federal do Rio Grande do Sul
| |
Collapse
|
16
|
Perryman KR, Olanrewaju H, Dozier WA. Growth performance and meat yields of broiler chickens fed diets containing low and ultra-low oligosaccharide soybean meals during a 6-week production period. Poult Sci 2013; 92:1292-304. [PMID: 23571339 DOI: 10.3382/ps.2012-02723] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Two experiments were conducted to determine the effects of diets containing low oligosaccharide soybean meals (SBM) on growth performance, meat yields, and physiological variables of broilers during a 6-wk production period. In experiment 1, six hundred Ross × Ross 708 male chicks were randomly distributed to 24 floor pens (25 birds per pen; 0.09 m(2) per bird at 1 d of age). Birds were fed corn-soybean meal-poultry by-product meal-based diets with either low oligosaccharide (LOSBM) or control SBM (CSBM) from 1 to 40 d of age. In experiment 2, one thousand five hundred Ross × Ross 708 male chicks were randomly distributed to 60 floor pens (25 birds per pen; 0.09 m(2) per bird at 1 d of age). Broilers were fed corn-soybean meal-poultry by-product meal-based diets containing 1 of 3 SBM sources [CSBM, LOSBM, or ultra-low oligosaccharide SBM (ULSBM)] and formulated with moderate or reduced AMEn concentrations (25 kcal/kg reduction) resulting in a 3 × 2 factorial design. Diets were formulated using AMEn and digestible amino acid values determined from previous research utilizing the same SBM types. Variables measured consisted of BW gain, feed intake, feed conversion ratio, mortality, carcass weight and yield, abdominal fat percentage, total breast meat weight and yield, digesta viscosities and pH, plasma nonesterfied fatty acids, plasma glucose, and plasma triglycerides. In experiment 1, broilers fed diets containing LOSBM had increased BW gain (P = 0.020) and decreased (P < 0.001) feed conversion from 1 to 14 d of age. Abdominal fat percentage was higher (P < 0.001) for birds fed LOSBM vs. CSBM. In experiment 2, no differences were observed for interaction effects or main effects of energy concentration. Feed conversion ratio was lower (P < 0.001) for broilers fed diets containing ULSBM vs. LOSBM and CSBM from 1 to 28 and 1 to 42 d of age. Broilers fed diets formulated with ULSBM had higher (P < 0.05) carcass yield vs. birds fed diets with CSBM. Total breast yield was higher (P = 0.021) for birds fed diets containing LOSBM and ULSBM vs. CSBM. Abdominal fat percentage was higher (P = 0.027) for broilers fed diets containing LOSBM vs. CSBM. Diets formulated with LOSBM and ULSBM required approximately 45% less supplemental fat, and broilers fed these diets exhibited no adverse effects on growth performance and meat yields compared with broilers fed diets containing CSBM.
Collapse
Affiliation(s)
- K R Perryman
- Department of Poultry Science, Auburn University, Auburn, AL 38649, USA
| | | | | |
Collapse
|