Document Detail


Kidding rates of angora goats passively immunized against estrogens.
MedLine Citation:
PMID:  3198526     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to determine the effect of passive immunization against estrone (E1), estradiol (E2) or estrogens (nonspecific; Ens) on ovulation rate and kidding rate in Angora does. On d 0 of the study, Angora does were divided into four treatment groups: 1) passively immunized against E1 (n = 14); 2) passively immunized against E2 (n = 24); 3) passively immunized against Ens (n = 9); and 4) injected with normal goat serum (control; n = 23). Fertile bucks were allowed to mate with the does from d 2 to 44. Immunization treatments did not influence (P greater than .1) percentage of does exhibiting estrus, percentage of does kidding or kid death rate. Ovulation rate was greater (P less than .06) in E2 and Ens immunized does than in control does. Both E2 and Ens treatments resulted in a greater (P less than .05) percentage of does giving birth to twins rather than singles compared with E1 or control treatments (70, 83, 27 and 31% twin births for E2, Ens, E1 and control, respectively). This increase in twin births resulted in kid crops per doe exposed of 142 and 122% for E2 and Ens compared with 100 and 91% for E1 and control treatments (P less than .05 for E2 vs control). These results demonstrate that the incidence of twin births can be increased by passively immunizing does against E2.
Authors:
A J Roberts; J J Reeves
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of animal science     Volume:  66     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1988 Oct 
Date Detail:
Created Date:  1989-01-17     Completed Date:  1989-01-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2443-7     Citation Subset:  IM    
Affiliation:
Washington State University, Pullman 99164-6332.
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MeSH Terms
Descriptor/Qualifier:
Animals
Estradiol / immunology
Estrogens / immunology*
Estrone / immunology
Female
Goats / physiology*
Immunization, Passive / veterinary*
Pregnancy
Pregnancy, Animal / immunology*
Twins
Chemical
Reg. No./Substance:
0/Estrogens; 50-28-2/Estradiol; 53-16-7/Estrone

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


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