Supplementing L-valine and L-isoleucine in low-protein corn and soybean meal all-vegetable diets for broilers

Berres, Josemar; Vieira, S. L.; Kidd, M. T.; Taschetto, Diogo; Freitas, Dimitri Moreira de; Barros, Rafael de; Nogueira, Eduardo Terra

doi:10.3382/japr.2009-00093

Cited by 25 publications

(18 citation statements)

References 16 publications

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“…In addition, non-alteration of feed intake due to marginal deficiency of valine was reported in finisher broilers [ 25 ] is indicative of the adoptive behavior of birds to marginal deficiency of SLAA. The poor FCR of magnitude 0.039 (T 2 ) and 0.061 (T 3 ) units observed in this study is supportive to the earlier findings with valine (17; 25), with isoleucine, glycine and glutamic acid [ 24 ], with isoleucine, tryptophan and arginine [ 20 ] and with valine and isoleucine [ 26 , 27 ] deficiencies.…”

Section: Discussionsupporting

confidence: 91%

Impact of second line limiting amino acids’ deficiency in broilers fed low protein diets with rapeseed meal and de-oiled rice bran

Kumar¹,

Gloridoss²,

Singh³

et al. 2015

Vet World

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Aim:To study the impact of deficiency of second line limiting amino acids (SLAA; valine, isoleucine and tryptophan) on the production performance and carcass characteristics of commercial broilers.Materials and Methods:A control (T1) corn-soy diet was formulated to contain all essential AA on standardized ileal digestible basis; While in T2-a ‘moderate SLAA deficit’ diet was formulated by replacement of soybean meal with 6% rapeseed meal and T3-a ‘high SLAA deficit’ diet was formulated by replacement of soybean meal with 6% de-oiled rice bran. Each of these treatments was allotted to six replicates of ten chicks each. During the 42 days experimental period, growth performance, carcass parameters and intake of metabolizable energy (ME), crude protein (CP) and AA were studied.Results:The cumulative body weight gain, feed conversion ratio, carcass cut weights and yields of carcass, breast and thighs were decreased (p<0.05) in T3 compared to T1. The absolute intake of ME, lysine, methionine + cysteine and threonine were not affected while intake of CP and all SLAA were reduced in SLAA deficit diets. The relative intake of ME, lysine, methionine + cysteine, threonine and SLAA reduced in T3 in comparison to T1. The relative weights of internal organs were not affected by treatments while the abdominal fat percentage was increased linearly to the magnitude of SLAA deficiency.Conclusion:The deficiency of SLAA decreased performance, carcass yields and impaired utilization of ME, CP and AA linearly to the magnitude of the deficiency.

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Section: Discussionsupporting

confidence: 91%

Impact of second line limiting amino acids’ deficiency in broilers fed low protein diets with rapeseed meal and de-oiled rice bran

Kumar¹,

Gloridoss²,

Singh³

et al. 2015

Vet World

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“…From AA requirement studies in the literature it is indicated that most of the variation in IAAR estimates is provided by differences in bird (genotype, gender, age, performance level [ 4 , 5 , 8 , 10 , 14 , 17 , 20 , 22 , 23 , 45 , 53 , 59 , 60 ]), diet (especially feed ingredients, dietary protein concentration, balance and availability of AA [ 4 , 5 , 8 , 10 , 46 ]), response parameter (e.g., BW gain, feed conversion rate, protein deposition, body composition [ 8 , 22 , 42 , 44 , 45 , 46 , 47 , 48 , 54 , 56 , 57 , 60 ]) and the applied mathematical model for AA requirement assessment [ 8 , 22 , 42 , 45 , 47 ]. Even if requirement data are expressed in terms of digestible AA, regardless of total vs. ileal (praecaecal) or true vs. apparent digestible, the observed considerable variation of IAAR literature data did not decline [ 59 ].…”

Section: Resultsmentioning

confidence: 99%

“…In the majority of studies with growing chicken, especially, the LEU content in diets was very high. Consequently, both the requirements of ILE and VAL and the calculated IAAR tended to be higher [ 42 , 56 , 57 , 58 ].…”

Section: Resultsmentioning

confidence: 99%

Improving the Reliability of Optimal In-Feed Amino Acid Ratios Based on Individual Amino Acid Efficiency Data from N Balance Studies in Growing Chicken

Wecke

Liebert

2013

Animals

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Simple SummaryDietary amino acid concentration should closely meet the quantitative requirement of animals dependent on genotype, gender, age, aimed performance and housing conditions. Both under- and over-supply yield impaired efficacy of individual amino acid utilization and increase the nitrogen excretion. Hence, for optimal feed formulation, a validated knowledge about adequacy of dietary amino acid balance is necessary. Present studies contribute toward ensuring ideal amino acid ratios in diets for growing broiler chicken making use of a new amino acid efficiency-based procedure.AbstractThree consecutive nitrogen balance experiments with fast-growing male broiler chickens (ROSS 308), both during starter and grower periods, were conducted to determine the ideal ratios of several indispensable amino acids relative to lysine. The control diets based on corn, wheat, fishmeal, field peas, wheat gluten and soybean oil were formulated by computer optimizing to meet the assumed ideal amino acid ratios and to fulfill both the energy and nutrient requirements of growing chicken. According to principles of the diet dilution technique, balanced control diets were diluted by wheat starch and refilled by crystalline amino acids and remaining feed ingredients, except the amino acid under study. The lysine, threonine, tryptophan, arginine, isoleucine and valine diluted diets resulted in significantly lower protein quality as compared to control diet, especially following increased dietary lysine supply (experiments II and III) and stronger amino acid dilution (experiment III). Accordingly, the limiting position of individual amino acids was confirmed, and the derived amino acid efficiency data were utilized to derive ideal amino acid ratios for the starter period: Lys (100): Thr (60): Trp (19): Arg (105): Ile (55): Val (63); and the grower period: Lys (100): Thr (62): Trp (17): Arg (105): Ile (65): Val (79).

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“…Tavernari et al (2013) estimated 0.730% TID Val for 30-to 43-old broilers fed diets containing animal by products in order to obtain maximum breast yield. The higher estimated level of TID Val the present (0.826%) compared with that of Tavernari et al (2013) may be ascribed to the dietary inclusion of only plant-derived products, which may increase valine requirements in reduced-protein diets (Berres et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…One of such interactions is that among valine, isoleucine, and leucine, are branched-chain amino acids (BCAA). Corn and soybean meal proteins contain more leucine than valine and isoleucine, which may increase the requirement of the last two amino acids in broiler diets, particularly during the grower phase (Berres et al, 2010) and when reduced-protein diets are fed to broilers. Valine is more susceptible than isoleucine to the increase in dietary leucine levels (D'Mello, 2003), and it is considered the fourth limiting amino acid in broilers diets based on corn and soybean meal with no inclusion of animal feedstuffs (Thornton et al, 2006;Tavernari et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Digestible Valine Requirements in Low-Protein Diets for Broilers Chicks

Nascimento

Murakami

Ospina-Rojas

et al. 2016

Rev. Bras. Cienc. Avic.

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Three experiments were carried out to evaluate the levels of digestible valine in diets with reduced crude protein on the performance, carcass yield and muscle fiber diameter of male broilers during the pre-starter (1 to 8 d of age), starter (9 to 21 d of age) and grower phases (21 to 42 d of age). A total of 1,080 chickens in the pre-starter phase, 900 in the starter phase and 864 in the grower phase were distributed in a completely randomized design with six treatments, consisting of a control positive diet (C+) and diets with 2 percentage points (p.p.) reduction of crude protein level and five graded levels of digestible valine (Val), with six replicates of 30, 25 and 24 birds per experimental unit, respectively. The recommended level of TID Val in the low-protein diets for broilers in the pre-starter, starter and grower stages were 1.028; 0.905 and 0.789%, respectively. The reduction of 2 percentage points of the crude protein level in diets based on corn and soybean meal impaired (p≤0.05) the feed conversion ratio in the starter and grower stages. Likewise, the reduced-protein diets decreased (p≤0.05) muscle fiber diameter, but did not affect (p>0.05) carcass and parts yields, or abdominal fat percentage at 42 days.

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Supplementing L-valine and L-isoleucine in low-protein corn and soybean meal all-vegetable diets for broilers

Cited by 25 publications

References 16 publications

Impact of second line limiting amino acids’ deficiency in broilers fed low protein diets with rapeseed meal and de-oiled rice bran

Impact of second line limiting amino acids’ deficiency in broilers fed low protein diets with rapeseed meal and de-oiled rice bran

Improving the Reliability of Optimal In-Feed Amino Acid Ratios Based on Individual Amino Acid Efficiency Data from N Balance Studies in Growing Chicken

Digestible Valine Requirements in Low-Protein Diets for Broilers Chicks

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