Document Detail


Relationships of empty-body composition and fat distribution to live animal and carcass measurements in Bos indicus-Bos taurus crossbred cows.
MedLine Citation:
PMID:  2384375     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Empty-body composition and fat distribution were determined for 55 nonpregnant, mature Bos indicus-Bos taurus crossbred cows fed to achieve variation in fatness. Prior to slaughter, cows were condition and frame scored, weighed and measured for hook height, hook width, heart girth and lengths from point of shoulder to pin and hook to pin. Fat thickness at three locations and ribeye area were measured ultrasonically on the live animal and carcass. Quality and yield grades were determined after a 48-h postslaughter chill. Visceral fat was excised at slaughter and weighed. Kidney, heart and pelvic (KHP) fat was excised from one side and the remainder of the side was separated into bone and soft tissue. Soft tissue was subsampled and analyzed for ether extract. Proportions of fat in soft tissue, bone, viscera and KHP were calculated. Variations of percentage of empty-body fat in soft tissue, KHP and bone were explained (R2 greater than .64) by equations involving either live animal or carcass measurements. Both ultrasonic and subjective fat estimates were of importance (P less than .05) in equations predicting fatness, indicating the importance of variation in fat distribution. Factor analysis indicated that fat accretion is a complex entity composed of several distinct distribution patterns (anterior-posterior, internal-external, intramuscular-intermuscular).
Authors:
J W Holloway; J W Savell; P L Hamby; J F Baker; J R Stouffer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of animal science     Volume:  68     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1990 Jul 
Date Detail:
Created Date:  1990-09-20     Completed Date:  1990-09-20     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1818-26     Citation Subset:  IM    
Affiliation:
Texas Agricultural Experiment Station, Uvalde 78801.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / anatomy & histology*
Animals
Body Composition*
Cattle / anatomy & histology*,  genetics
Crosses, Genetic*
Female
Random Allocation
Regression Analysis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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