+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Control of transitional anestrus in mares by infusion of gonadotropin releasing hormone

, : Control of transitional anestrus in mares by infusion of gonadotropin releasing hormone. Theriogenology 29(6): 1383-1386

Ten Standardbred mares were divided into two equal groups during transitional anestrus. One group was left untreated, while the other group received a subcutaneous infusion of gonadotrophin releasing hormone (GnRH) at a rate of 100 ng/kg/h for 28 d, delivered via osmotic minipumps (OMP). Ovarian palpations were carried out, and blood samples were collected every 2 to 5 d and assayed for luteinizing hormone (LH) and progesterone concentrations. Volume of the ovary destined to ovulate almost doubled within 7 d of OMP insertion in treated mares, while volume of the contralateral ovary declined by 50% in the same period. Day (.hivin.X .+-. SEM) of ovulation was approximately 5 wk earlier (P < 0.01) in the treated (18.6 .+-. 4.1 d) mares compared to controls (54.8 .+-. 10.8 d). Ovulation was generally associated with an obvious endogenous surge of LH which was followed by a rise in plasma progesterone concentrations. The day of conception in the treated mares (26.6 .+-. 9.7 d) was significantly (P < 0.01) earlier than the controls (67.8 .+-. 16.0 d). The results indicate that fertile estrus can be induced in Standardbred mares during seasonal anestrus using GnRH infusions. This has important implications for improving reproductive efficiency in the horse breeding industry.

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 001554858

DOI: 10.1016/0093-691x(88)90019-2

PDF Full Text: Control of transitional anestrus in mares by infusion of gonadotropin releasing hormone

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Moore, S.E.; Collinson, A.C.; Prentice, A.M., 2001: Moderate levels of undernutrition have little impact on immune function in rural Gambian children. Proceedings of the Nutrition Society 60(OCA): 20A, Spring

Rhee, S.Jong.; Lee, J-Eun.; Lee, C-Ho., 2012: Importance of lactic acid bacteria in Asian fermented foods. Lactic acid bacteria play important roles in various fermented foods in Asia. Besides being the main component in kimchi and other fermented foods, they are used to preserve edible food materials through fermentation of other raw-materials such as...

Nakamura, K.; Okada, S.; Yokotani, K., 2002: Involvement of ET-A receptors in the inhibition of noradrenaline release by endothelins from the rat stomach. Japanese Journal of Pharmacology 88(Supplement 1): 226P

Selinger M.S.; Matloff D.S.; Kaplan M.M., 1979: Hepatic and serum gamma glutamyl trans peptidase activity in alcoholic liver disease. Gastroenterology 76(5 PART 2): 1241

Paramasivam, S.; Alva, A.K.; Prakash, O., 1998: Denitrification from sandy soils treated with liquid on dry granular nitrogen form. The forms of nitrogen (N) in fertilizers and soil properties influence gaseous loss of N by denitrification. A laboratory incubation study was conducted to evaluate the denitrification losses from liquid or dry granular forms of ammonium nitrate (...

Dennis, D.A.; Komistek, R.D.; Kim, R.H.; Sharma, A., 2010: Gap balancing versus measured resection technique for total knee arthroplasty. Multiple differing surgical techniques are currently utilized to perform total knee arthroplasty (TKA). We compared knee arthroplasties performed using either a measured resection or gap balancing technique to determine if either operative techniq...

Wallace, A.; North, C.P., 1953: Lime-induced chlorosis. Chelating agents a possible means of control in citrus, avocado, and other subtropicals. The chelating agent, EDTA (ethylene-diaminetetra-acetic acid), is a possible means of controlling lime-induced Fe chlorosis in citrus and avocadoes. It holds Fe as a chelated complex in acid and neutral soils and to some extent in mildly alkaline...

Anonymous, 2004: Human parvovirus B19. American Journal of Transplantation 4 Suppl 10: 92-94

Guittet, M., 1978: Diagnosis and epidemiology of egg drops associated with production of eggs without or with weak shell. Aviculteur 379 51-54

L.C.evanton, L.; Leblon, G.; Lebilcot, S., 1989: Duplications created by transformation in Sordaria macrospora are not inactivated during meiosis. We present here the first report of a transformation system developed for the filamentous fungus Sordaria macrospora. Protoplasts from a ura-5 strain were transformed using the cloned Sordaria gene at a frequency of 2 x 10(-5) transformants per vi...