| Melatonin advances june breeding and fall lambing in range and farm-flock type ewes. | |
| | |
MedLine Citation:
|
PMID: 16726386 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
|
Influence of melatonin on reproductive performance was evaluated by randomly allotting Polypay-type ewes to four treatments: controls in drylot, melatonin-treated ewes in drylot, controls on range, and melatonin-treated ewes on range. An additional group of Targhees and Rambouillets was randomized by breed as control ewes or melatonin-treated ewes to test effect of melatonin in range ewes. All ewes were supplemented with 0.34 kg/head alfalfa-barley (1:1) pellets from 1600 to 1630 h daily, from April 15 to June 30. Ewes maintained on range received no further supplementation, while ewes in drylot received alfalfa pellets for maintenance. Melatonin was fed at 10 mg hd(-1) d(-1) in the pellet to designated ewes in drylot or on range. Three rams were put with each group of ewes on June 1 and rotated among groups at 7-d intervals during the first 30 d of breeding to reduce sire differences. After the first 30 d, ewe groups were combined with all rams. Melatonin induced (P<0.01) an earlier onset of estrus (approximately 17 d) as indicated by earlier lambing dates in Polypay-type, Rambouillet, and Targhee ewes managed on spring range. Melatonin also increased (P<0.01) the number of ewes that conceived during the first 30 d of breeding (June) for both management treatments (drylot and range) and for all breeds. |
| | |
Authors:
|
J N Stellflug; T M Nett; C F Parker |
Related Documents
:
|
17919696 - Lemonade therapy increases urinary citrate and urine volumes in patients with recurrent... 2915966 - Extracorporeal shock wave lithotripsy for gallstones. how effective is it? 9428436 - Ureteroscopic treatment of ureteral stones: only an auxiliary measure of extracorporeal... 20849306 - Retrograde ureteroscopic treatment for upper ureteral stones: a 5-year retrospective st... 1563876 - Early identification of patients at risk for sinus node dysfunction after mustard opera... 9933806 - Transurethral microwave thermotherapy. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Theriogenology Volume: 29 ISSN: 0093-691X ISO Abbreviation: Theriogenology Publication Date: 1988 |
Date Detail:
|
Created Date: 2006-05-26 Completed Date: 2009-12-16 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0421510 Medline TA: Theriogenology Country: United States |
Other Details:
|
Languages: eng Pagination: 643-55 Citation Subset: - |
Affiliation:
|
Sheep Experiment Station, USDA-Agricultural Research Service, Dubois, ID 83423, USA. |
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: Influence of prepartum exposure of beef heifers to winter weather on concentrations of plasma energy...
Next Document: Effect of alfaprostol on postpartum reproductive efficiency in brahman cows and heifers.