| Production performance of Barbados blackbelly sheep in Tobago, West Indies. | |
| | |
MedLine Citation:
|
PMID: 11445425 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Data on 298 lambs from 161 ewes of the Barbados Blackbelly breed from 1982 to 1985 at the Blenheim Sheep Station in Tobago were studied to determine the influence of lambing season-year, sex and type of birth on body weights of lambs at birth, at 56 days (weaning) and 6 months of age, preweaning daily gain and mortality. The effect of the lambing season-year on litter size (total number of lambs born, born alive and weaned per ewe lambing) and total lamb weight at weaning were examined. The flock averages for body weights of lambs at birth, at 56 days and 6 months of age, preweaning daily gain and mortality were 2.75, 10.8, 19.2, 0.152kg, and 18.3%, respectively. Averages for total number of lambs born, born alive and weaned were 1.92, 1.88, 1.51, respectively, and total lamb weight at weaning was 16.7kg. The lambing season-year effect was apparent for all traits studied except for litter size and lamb mortality. Sex of lamb was not a significant source of variation. Type of birth had significant effect on lamb growth traits and total lamb weight at weaning. Single born lambs were heavier than those born as twins or more. Ewes with triplets or more weaned 21kg lamb weight compared to 18 and 12kg for twins and singles, respectively. Lamb mortality was 27.8% for those with below average birth weight and 8.8% for those with above average birth weight (P<0.05). |
| | |
Authors:
|
R K. Rastogi |
Related Documents
:
|
2636205 - Development of mother discrimination by single and multiple newborn lambs. 6637865 - Nutrient intake patterns and nutritional status with regard to relative weight in early... 16686145 - Commercial bumble bee bombus impatiens (hymenoptera: apidae) as a pollinator in lowbush... 1506295 - Correlated changes in reproductive components accompanying 10 generations of selection ... 9282705 - Apnea frequently persists beyond term gestation in infants delivered at 24 to 28 weeks. 15177905 - A protocol for quantifying the birth, death and emigration rates of produce-associated ... |
Publication Detail:
|
Type: JOURNAL ARTICLE |
Journal Detail:
|
Title: Small ruminant research : the journal of the International Goat Association Volume: 41 ISSN: - ISO Abbreviation: Small Rumin. Res. Publication Date: 2001 Aug |
Date Detail:
|
Created Date: 2001-Jul-10 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9885624 Medline TA: Small Rumin Res Country: - |
Other Details:
|
Languages: ENG Pagination: 171-175 Citation Subset: - |
Affiliation:
|
Department of Food Production, Faculty of Agriculture and Natural Science, The University of the West Indies, West Indies, St. Augustine, Trinidad and Tobago |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Polymorphisms at the five exons of the growth hormone gene in the algarvia goat: possible associatio...
Next Document: Growth performance of purebred Awassi, Morkaraman and Tushin lambs and their crosses under semi-inte...