Sulfur Utilization by the Chick with Emphasis on the Effect of Inorganic Sulfate on the Cystine-Methionine Interrelationship

Sasse, C.; Baker, David H.

doi:10.1093/jn/104.2.244

Cited by 81 publications

(27 citation statements)

References 20 publications

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“…For starter chicken, the optimal Cys contribution to SAA supply depending on diet composition (purified AA or practical type diets) and reference criterion (BW gain, feed efficiency or body protein deposition) was found to be between 48% and 58% [38], at 54% [43] or between 56% and 60% [44].…”

Section: Discussionmentioning

confidence: 99%

An Elevated Dietary Cysteine to Methionine Ratio Does Not Impact on Dietary Methionine Efficiency and the Derived Optimal Methionine to Lysine Ratio in Diets for Meat Type Chicken

Kahn¹,

Wecke²,

Liebert³

2015

OJAS

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Optimal dietary methionine (Met) to lysine (Lys) ratio in presence of elevated dietary cysteine (Cys) levels was derived for meat type growing chicken. Twelve averaged weighed Ross 308 birds (each 50% of male and female per dietary treatment) were utilized in N balance trials. During starter (d10 -20) and grower period (d25 -35) five dietary treatments were used. Diets based on uniform mixtures of maize, wheat, soybean meal, potato protein and fish meal were supplemented with crystalline amino acids (AA). In diets 1 -3, the dietary Cys to Met ratio was set as 85, 95 and 105 to 100, respectively. Diet 4, at a Cys to Met ratio of 105 to 100, was additionally supplemented with betaine (BET) as methyl group donor. Diets 1 -4 were limiting in Met, diet 5 without L-Lys•HCl addition was limiting in Lys. Individual N-balance data per treatment were utilized for assessing protein quality and efficiency of dietary Met (Diets 1 -4) or Lys (Diet 5) based on "Goettingen approach". Elevated dietary Cys supply and supplemented BET failed to improve both dietary protein quality and Met efficiency. The established optimal Met to Lys ratio was on average 34 to 100 for growing chicken during starter and grower period, respectively.

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Section: Discussionmentioning

confidence: 99%

An Elevated Dietary Cysteine to Methionine Ratio Does Not Impact on Dietary Methionine Efficiency and the Derived Optimal Methionine to Lysine Ratio in Diets for Meat Type Chicken

Kahn¹,

Wecke²,

Liebert³

2015

OJAS

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“…At hatching, the crossbred chicks were fed a corn-soybean meal pretest diet until 8 (Experiment 1) or 9 (Experiment 2) days of age. Chicks were weighed and allotted to treatment as described by Sasse and Baker (1974). All chicks were housed in heated, thermostaticallycontrolled starter batteries with raised wire floors and allowed to consume feed and water ad libitum.…”

Section: Methodsmentioning

confidence: 99%

Effect of Dietary Protein Level and Monensin on Performance of Chicks

Parsons

Baker

1982

Poultry Science

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Four experiments were conducted to investigate a possible interaction between dietary protein level and monensin on growth performance of young chicks. Crossbred chicks (New Hampshire X Columbian) or commercial broiler chicks (Hubbard X Hubbard) were fed corn-soybean meal diets containing various protein levels with or without added monensin (160 or 121 mg/kg). Monensin had little or no effect on growth performance of crossbred chicks fed diets containing 24 or 20% protein. However, growth performance of chicks fed 16% protein diets was depressed 15 and 8% by 160 and 121 mg/kg monensin, respectively. With commercial broiler chicks a marked interaction was observed between dietary protein level and monensin. As dietary protein level decreased, the depression in performance from monensin increased. At 24.0, 21.5, 19.0, and 16.5% protein, weight gains at 4 weeks of age were depressed 20, 29, 35, and 45% by 160 mg/kg monensin and 7, 14, 19, and 28% by 121 mg/kg monensin, respectively. Linear regression analysis indicated that 121 mg/kg monensin depressed growth rate an additional 2.7% for each 1% reduction in dietary protein level. A large portion of the growth depression from monensin could be explained by reduced feed intake. The results of this study indicate that level of dietary protein has a profound effect on the magnitude of growth depression caused by addition of monensin to chick diets. Thus, deficient levels of dietary protein should be avoided when using this anticoccidial drug in broiler feeds.

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“…At hatching, chicks were fed a corn-soybean meal pretest diet until 3 (Experiment 2) or 8 (Experiments 1, 3, and 4) days posthatching after which they were weighed and allotted to treatment as described previously (Sasse and Baker, 1974). All chicks were housed in heated, thermostaticallycontrolled, starter batteries with raised wire floors and allowed to consume both their experimental diet and tap water ad libitum.…”

Section: Methodsmentioning

confidence: 99%

Performance of Healthy and Eimeria acervulina-lnfected Chicks as Influenced by Anticoccidial Drugs and Source of Dietary Protein

Willis

Baker

1981

Poultry Science

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Four experiments were conducted to evaluate an alleged interaction between the anticoccidial drugs, monensin and lasalocid, and dietary protein source. Chicks were fed practical diets (approximately 24% crude protein) containing from 0 to 13% animal-source protein supplied by either a fish meal-meat and bone meal combination or by feather meal. Monensin (121 mg/kg) and lasalocid (125 mg/kg) were evaluated for anorexigenic activity in health birds and for growth-enhancement activity in E. acervulina-infected birds. Diet-by-coccidiostat interactions were not detected in any of these experiments. The addition of monensin or lasalocid depressed performance significantly in only one of the experiments, but the magnitude of depression was similar regardless of level of animal-source protein. Efficacy of the coccidiostats, as judged by performance of chicks infected with E. acervulina, was not altered by diet type.

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Sulfur Utilization by the Chick with Emphasis on the Effect of Inorganic Sulfate on the Cystine-Methionine Interrelationship

Cited by 81 publications

References 20 publications

An Elevated Dietary Cysteine to Methionine Ratio Does Not Impact on Dietary Methionine Efficiency and the Derived Optimal Methionine to Lysine Ratio in Diets for Meat Type Chicken

An Elevated Dietary Cysteine to Methionine Ratio Does Not Impact on Dietary Methionine Efficiency and the Derived Optimal Methionine to Lysine Ratio in Diets for Meat Type Chicken

Effect of Dietary Protein Level and Monensin on Performance of Chicks

Performance of Healthy and Eimeria acervulina-lnfected Chicks as Influenced by Anticoccidial Drugs and Source of Dietary Protein

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