title: Effects of dietary protein and added fat on turkeys varying in strain, sex, and age. 2. Carcass characteristics.
abstract: The effects of dietary protein and added fat on carcass characteristics were determined at various ages for female and male turkeys and from three strains: Nicholas Large White (N), Jaindl Large White (JL), and Jaindl Medium White (JM). A total of 1,350 turkeys was divided into 36 pens and fed diets containing 0, 5, or 10% added fat and standard or high protein levels from 8 wk of age to time of processing. One-fourth of the females and one-third of the males from each pen were processed at 16, 20, 24, or 28 wk and at 20, 24, or 28 wk, respectively. Breast meat weight, expressed as a percentage of carcass weight, was greater for JM and JL turkeys than for N turkeys (34.6, 33.9, and 31.7%, respectively), increased with age (31.9, 34.1, and 34.2% at 20, 24, and 28 wk of age, respectively), was greater for females than for males (34.2 and 32.6%, respectively), decreased with added fat (33.7, 33.4, and 33.1% for 0, 5, and 10% fat, respectively) and increased with a 3% addition of dietary protein (33.2 and 33.6%, respectively).
authors.affiliation: Department of Poultry Science, Virginia Polytechnic Institute, Blacksburg 24061-0332.
authors.forename: M E
authors.initials: ME
authors.lastname: Blair
authors.forename: L M
authors.initials: LM
authors.lastname: Potter
authors.forename: R M
authors.initials: RM
authors.lastname: Hulet
mesh_terms: D000367:Age Factors; D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D004041:Dietary Fats / Q000378:metabolism*; D004044:Dietary Proteins / Q000378:metabolism*; D005260:Female; D008297:Male; D008460:Meat; D024510:Muscle Development; D009929:Organ Size; D010375:Pedigree; D012737:Sex Factors; D014422:Turkeys / Q000254:growth & development*
chemical_list: D004041:Dietary Fats; D004044:Dietary Proteins