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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Avril, Dean H. Lallo, Cicero Mlambo, Victor Bourne, Gregory |
| Spatial Coverage | Trinidad and Tobago |
| Description | Author Affiliation: Avril DH ( Open Tropical Forages-Animal Production Laboratory, Department of Food Production, Faculty of Science and Agriculture, The University of the West Indies, St. Augustine Campus, Port of Spain, Trinidad and Tobago, dean36@gmail.com.) |
| Abstract | Animal management for breeding and marketing can be improved by precise measurement of desirable traits. Live animal body composition analysis facilitates the selection of animals that are best suited for the intended purpose. This study was designed to assess the accuracy of bioelectrical impedance analysis (BIA) predicted live body tissue composition, as a proxy for the estimation of carcass quality in Barbados Black Belly lambs. Thirty-four Barbados Black Belly lambs were placed on an 8-week feeding regime and then slaughtered. A randomized experimental design was used to allocate diets to animals, which had been stratified into eight groups by initial live weight. The lambs were fed a basal diet of Brachiaria arrecta fresh forage ad libitum and subjected to one of four diets; NS-non-supplemented diet, TG-Trichantera gigantea-supplemented, C100-concentrate supplemented for maintenance, and C400-concentrate supplemented for growth. Diets NS, TG, C100, and C400 had 7, 9, 11, and 7 animals, respectively. The average age and weight at the time of slaughter were 206 days and 23.7 kg, respectively. A 4-terminal impedance analyzer (RJL Systems®) was used to generate BIA data from live animals immediately before slaughter. The chilled carcasses were then subject to chemical analysis for crude fat, crude protein, and dry matter. Live animal and carcass traits predicted by BIA included fat and fat-free mass, crude fat, crude protein, protein to fat ratio, and tissue distribution. Regression equations were developed from BIA data obtained from the live animal to predict all carcass composition traits measured. Bioelectrical impedance analysis generated favorable results as a practical application to carcass composition evaluation in live tropical hair sheep. |
| File Format | HTM / HTML |
| ISSN | 00494747 |
| Issue Number | 8 |
| Volume Number | 45 |
| e-ISSN | 15737438 |
| Journal | Tropical Animal Health and Production |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2013-11-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Veterinary Medicine Discipline Tropical Medicine Body Composition Physiology Meat Standards Sheep Anatomy & Histology Animals Body Weight Electric Impedance Random Allocation Regression Analysis Trinidad And Tobago Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Food Animals |
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