REVIEW ON ESTRUS SYNCHRONIZATION AND ITS APPLICATION IN CATTLE
Journal Title: INTERNATIONAL JOURNAL OF MODERN PHARMACEUTICAL RESEARCH - Year 2017, Vol 1, Issue 1
Abstract
Numbers of estrus synchronization programmes are available in cattle based on the use of various hormones like progesterone, prostaglandin F2α and their various combinations with other hormones like estrogen and Gonadotrophin Releasing hormone (GnRH). Selection of appropriate estrus synchronization protocol should be made on the basis of management capabilities and expectations of the farmer. Synchronization of oestrus can be accomplished with the injection of prostaglandin F2α alone, but it needs proper detection of the ovarian status of the cows as prostaglandin F2α is active in only functional corpus luteum in between 8 to 17 days of estrous cycle. Progesterone may reduce fertility up to 14 percent, but short time progesterone exposure (less than 14 days) is beneficial. Addition of GnRH in the Progesterone or Prostaglandin based synchronization programme is helpful for more synchrony in estrus as GnRH may be helpful to synchronize the oestrous cycle in delayed pubertal heifers and post-partum cows (Post-partum anoestrum) and further a single, timed artificial insemination is possible with this method. New methods of synchronizing estrus in which the GnRH-PG protocol is preceded by progesterone treatment offer effective synchronization of estrus with high fertility.
Authors and Affiliations
Liuel Yizengaw
Keywords
Related Articles
- EP ID EP666093
- DOI -
- Views 259
- Downloads 0
ISOLATION AND IDENTIFICATION OF ORAL MICROBIOTA FROM CLINICAL SPECIMENS
Over 700 bacterial species have been identified from studies of the oral cavity with many studies focusing on the diversity in the oral cavity during disease. Some pathogenic bacteria are known to have formed symbiotic r...
ASSESSMENT OF KNOWLEDGE, ATTITUDE AND PRACTICE OF POST EXPOSURE PROPHYLAXIS FOR HIV/AIDS AMONG HEALTH CARE WORKERS IN SHAMBU GENERAL HOSPITAL, HORRO GUDURU WOLLEGA ZONE, OROMIA REGIONAL STATE, ETHIOPIA
Back ground: Although AIDS remains one of the world’s most serious health challenges; global solidarity in the AIDS response during the past decade continues to generate extraordinary health gains. Globally 34.0 million...
CORRELATION AND PATH ANALYSIS FOR YIELD AND YIELD COMPONENT IN BLACK CUMIN (NIGELLA SATIVA L.)
Thirty-three accessions and three released varieties of black cumin genotypes were field evaluated at Debre Zeit Agricultural Research Center during 2015 main season using 6x6 simple lattice Design. The objectives were t...
HEAVY METALS CONTAMINATION AND DETECTION BY USING INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROSCOPY: A REVIEW
Heavy metals are necessary for human health, and are beneficial when taken in to the body in foods or as supplements at appropriate, low levels but can be toxic when taken in higher concentrations. Heavy metals are conta...
AWARENESS ABOUT PSORIASIS DISEASE
A large population is affected by psoriasis disease. A type of itchy skin disease many factors are responsible for the prevalence of the disease, we have conducted a survey on psoriasis disease among the MPHILL students,...