The influence of dietary protein content on the performance of genetically lean or fat growing chickens.
Genetically lean or fat male chickens were fed from 3 to 8 weeks of age on four diets of different protein content: 152, 172, 191 or 211 g/kg. The two lower protein contents depressed growth of lean chickens but had no adverse effects on fat chickens. In both lines increasing dietary protein decreased food: gain ratio and abdominal fat desposition relative to live body weight. Protein deposited and the efficiency of utilisation of dietary protein were higher in all instances in lean birds.
D000273:Adipose Tissue / Q000378:metabolism; D000818:Animals; D001823:Body Composition; D001835:Body Weight; D002645:Chickens / Q000235:genetics / Q000378:metabolism*; D004044:Dietary Proteins / Q000378:metabolism*; D008297:Male
D004044:Dietary Proteins