Document Detail


Estrus synchronization in sheep and goats using combinations of GnRH, progestagen and prostaglandin F2alpha.
MedLine Citation:
PMID:  19055549     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The objective of this experiment was to evaluate the effect of GnRH, progestagen and prostaglandin F(2alpha) on estrus synchronization in sheep and goats. Sixty Awassi ewes and 53 Damascus does were used in the study. The experiment started at the beginning of the breeding season (June/July). The same treatments were applied to sheep and goats as follows: no treatment (CON), 14-day progestagen sponges and 600 IU equine chorionic gonadotropin (S), gonadotropin releasing hormone followed 5 days later by prostaglandin F(2alpha) (GP) and gonadotropin releasing hormone, progestagen sponges for 5 days and prostaglandin F(2alpha) on the day of sponge removal (GSP). None of the ewes in the S group lambed from mating during the induced cycle. A greater lambing rate (p < 0.05) was observed in the GSP group compared with the CON and S groups while the GP group was intermediate. The number of lambs born per lambed ewe was similar among the CON, GP and GSP groups. However, the number of lambs per exposed ewe was greater (p < 0.05) in the GSP than the remaining groups. The induced cycle kidding rate was 77% for all treatments combined. Similar kidding rate were observed among treatments. The numbers of kids born per kidded and exposed doe from mating during the induced estrus were also similar among treatments. Greater numbers of multiple births were observed in the GP and GSP than in the S group. In conclusion, a combination of GnRH, progestagen sponges and PGF(2alpha) can be effective in synchronizing estrus and improving fecundity in sheep and goats. Although the use of GnRH-PGF(2alpha) was effective, the addition of progestagen sponges at the time of GnRH administration appeared to improve reproductive parameters.
Authors:
H H Titi; R T Kridli; M A Alnimer
Related Documents :
9050699 - Is estrogen necessary after hysteroscopic incision of the uterine septum?
2115379 - Treatment with gnrh agonists before myomectomy and the risk of short-term myoma recurre...
8752259 - Development of spontaneous endometriosis in baboons.
9758439 - Pulsatile gnrh or human chorionic gonadotropin/human menopausal gonadotropin as effecti...
9856319 - Uterine balloon therapy to treat menorrhagia.
12161049 - Impact of different hormone replacement therapy regimens on the size of myoma uteri in ...
22218049 - Efficacy and safety of low molecular weight heparin prophylaxis for venous thromboembol...
22001709 - Evaluation of a new standardized protocol for the perioperative management of chronical...
20798249 - Percutaneous treatment of thrombosed arteriovenous fistulas: clinical and economic impl...
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2008-12-02
Journal Detail:
Title:  Reproduction in domestic animals = Zuchthygiene     Volume:  45     ISSN:  1439-0531     ISO Abbreviation:  Reprod. Domest. Anim.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9015668     Medline TA:  Reprod Domest Anim     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  594-9     Citation Subset:  IM    
Affiliation:
Department of Animal Production, Faculty of Agriculture, University of Jordan, Amman.
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:  NADP-dehydrogenases from pepper fruits: effect of maturation.
Next Document:  Comparative immunolocalization of GLUTs 1, 2, 3 and 5 in boar, stallion and dog spermatozoa.