Effects of energy and protein allowances during lay on the reproductive performance of broiler breeder hens
作者： R. Anne Pearson , Kathleen M. Herron
DOI: 10.1080/00071688108447881
关键词: Protein intake 、 Animal science 、 Broiler 、 Biology 、 Dietary protein intake 、 Broiler breeder 、 Internal medicine 、 Endocrinology
摘要: 1. Broiler parent stock were fed daily allowances of 1.88, 1.73 or 1.52 MJ apparent metabolisable energy (AME) per bird at two different protein intakes (27, 21.3 g crude (CP) bird) 24.6 and 19.4 CP a intake 1.88 AME from 21 to 64 weeks age. 2. Body‐weight gain carcass fat water content increased fertility decreased with increasing allowance. Maximum egg production occurred an AME/bird d. 3. Differences in weight hatchability related differences both intake. The highest the allowance protein. Hatchability was depressed where ratio more than 15 protein: 1 AME. 4. Apart size no significant effects on reproductive performance observed when dietary varied 27 19.5 g/bird 5. Requirements ...
sci-hub.se 参考文章(8)
Stanford Moore, On the determination of cystine as cysteic acid. Journal of Biological Chemistry. ,vol. 238, pp. 235- 237 ,(1963) , 10.1016/S0021-9258(19)83985-6
Park W. Waldroup, Kenny R. Hazen, William D. Bussell, Zelpha B. Johnson, Studies on the daily protein and amino acid needs of broiler breeder hens. Poultry Science. ,vol. 55, pp. 2342- 2347 ,(1976) , 10.3382/PS.0552342
I.R. Sibbald, A Bioassay for True Metabolizable Energy in Feedingstuffs Poultry Science. ,vol. 55, pp. 303- 308 ,(1976) , 10.3382/PS.0550303
S. LEESON, B. S. REINHART, J. D. SUMMERS, RESPONSE OF WHITE LEGHORN AND RHODE ISLAND RED BREEDER HENS TO DIETARY DEFICIENCIES OF SYNTHETIC VITAMINS. 2. EMBRYO MORTALITY AND ABNORMALITIES Canadian Journal of Animal Science. ,vol. 59, pp. 569- 575 ,(1979) , 10.4141/CJAS79-071
T. R. Morris, The effect of dietary energy level on the voluntary calorie intake of laying birds British Poultry Science. ,vol. 9, pp. 285- 295 ,(1968) , 10.1080/00071666808415720
O. A. M. LEWIS, Short ion-exchange column method for the estimation of cystine and methionine. Nature. ,vol. 209, pp. 1239- 1240 ,(1966) , 10.1038/2091239A0
R. Anne Pearson, Kathleen M. Herron, Feeding standards during lay and reproductive performance of broiler breeders British Poultry Science. ,vol. 21, pp. 171- 181 ,(1980) , 10.1080/00071668008416655
I.R. SIBBALD, Effects of Level of Feed Input, Dilution of Test Material, and Duration of Excreta Collection on True Metabolizable Energy Values Poultry Science. ,vol. 58, pp. 1325- 1329 ,(1979) , 10.3382/PS.0581325