Document Detail

Effect of diet and population density on male turkeys under various environmental conditions. 2. Body composition and meat yield.
MedLine Citation:
PMID:  1876568     Owner:  NLM     Status:  MEDLINE    
Large White Nicholas male turkeys were reared at two stocking densities (.21 or .46 m2 per bird) and fed one of four diets: 1) control corn and soybean (mash) with 1% fat (CSM); 2) as Diet 1, pelleted (CSP); 3) as Diet 1 with supplemental fat increasing from 1 through 8% with age (CSF); and 4) as Diet 1 with barley at 0, 20, 35, 50, and 65% during successive 4-wk periods (CSB). The turkeys were reared in four environments: (A) intermittent light schedule [4(2 h light (L):4 h dark D))] with temperature at 7 or 21 C during light and dark photoperiod, respectively; (B) and (D) with intermittent light (2L:4D) with a constant 21 and 7 C temperatures, respectively; (C) continuous light cycle (18L:6D) with temperatures as in Environment A. At 20 wk of age, two turkeys per replicate pen, were killed for determination of body composition and meat yield. Compared with turkeys fed CSM diet, those on CSF and CSP diet had increased percentage carcass fat. Meat yield per bird and percentage carcass fat were greater for turkeys reared at .46 m2 per bird compared with rearing at .21 m2 per bird. Pelleting and fat supplementation resulted in significantly increased amounts of breast meat and leg compared with CSM. Breast meat yield (percentage) and amount were greater at 7 C (Environment D) than at 21 C (Environment B) and the cycling regimen (Environment A). Percentage abdominal fat was greatest at 7 C. Interactions of environment and diet were detected for breast meat yield percentage (P less than .023) and weight (P less than .036). Diet type had no effect on percentage breast meat or weight in Environment C. An increased amount of breast meat was obtained by feeding CSP in Environments A, B, and D, and dietary fat supplementation increased breast meat yield in Environments A and D over CSM treatment.
J C Halvorson; P E Waibel; E M Oju; S L Noll; M E el Halawani
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Poultry science     Volume:  70     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  1991 Apr 
Date Detail:
Created Date:  1991-09-26     Completed Date:  1991-09-26     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  935-40     Citation Subset:  IM    
Department of Animal Science, University of Minnesota, St. Paul 55108.
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MeSH Terms
Adipose Tissue / growth & development
Animal Feed
Body Composition*
Muscle Development*
Population Density
Turkeys / anatomy & histology,  growth & development*

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