Growth performance and carcass characteristics of male broilers fed diets varying in digestible threonine to lysine ratio from 21 to 49 days of age
نویسندگان
چکیده
منابع مشابه
Assessment of Threonine-to-Lysine Ratio of Male Broilers From 35 to 49 Days of Age
Digestible lysine (dLys) and digestible threonine (dThr) are considered to be the second and third limiting amino acids (AA) after sulfur containing amino acids (dTSAA) for broilers fed corn-soybean meal-based diets. Diets formulated to meet the AA requirements of modern broiler strains are required to maximize performance. Currently, nutritionists formulate poultry diets using the ideal protei...
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The objective of this study was to evaluate the performance of male broiler chickens in the period from 21 to 42 days of age fed diets with increasing levels of sunflower meal (SM) supplemented with an enzyme complex (EC). A total of 1920 animals of the Cobb strain were distributed in a randomized block design in a 4 × 3 factorial arrangement (four SM levels and three enzymes utilization types)...
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There is little research data available on the digestible Lys requirement of broilers from 2 to 4 wk of age. Two experiments were conducted to determine the digestible Lys requirements of male and female Ross x Ross TP16 broilers from 14 to 28 d. Two diets (dilution and summit) consisting of corn, soybean meal, poultry by-product meal, and peanut meal were formulated to be adequate in all other...
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Three experiments were conducted separately to estimate the digestible Lys (dig. Lys) requirements of Cobb × Cobb 500 male broilers using different statistical models. For each experiment, 1,200 chicks were housed in 48 floor pens in a completely randomized design with 6 treatments and 8 replicates. Broilers were fed diets with increasing dig. Lys levels from 1 to 12 d (Exp. 1), from 12 to 28 d...
متن کاملEffect of Lysine to Digestible Energy Ratio on Growth Performance and Carcass Characteristics in Finishing Pigs
This experiment was performed to investigate the effects of lysine (Lys) to DE ratio on growth performance, and carcass characterics in finishing barrows. Ninety six cross-bred finishing barrows ((Landrace×Yorkshire) ×Duroc, average BW 58.25±0.48 kg) were assigned as a randomized complete block design by 2 energy levels and 4 Lys:DE ratios on the basis of BW to one of 8 treatments with 3 replic...
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ژورنال
عنوان ژورنال: Journal of Applied Poultry Research
سال: 2016
ISSN: 1056-6171
DOI: 10.3382/japr/pfw039