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 235
- Downloads 0
A REVIEW ARTICLE ON AYURVEDOKTA VAJIKARANA DRAVYAS
Ayurveda is the ancient science which deals with every aspect of life in the forms of Asthanga.Asthanga mainly includes- Kayachikitsa, Balaroga, Grahachikitsa, Urdhwanga (Shalakyatantra), Shalyatantra, Agadatantra, Rasay...
ASSESSMENT OF VARIANT 263 A>G IN THE INHERITANCE OF MITOCHONDRIAL CARDIOVASCULAR DISEASE (CAD) IN IRANIAN PATIENTS REFERRED TO CATH LAB
Introduction: Coronary Artery Disease (CAD) is an important, common disorder in humans and the first cause of death in many communities. Early diagnosis, before manifestation of symptoms or identifying susceptibility to...
PREVALENCE OF ABUSED SOCIAL DRUGS AMONG GUTE AREA PEOPLES, EAST WOLLEGA ZONE, OROMIA REGIONAL STATE, ETHIOPIA
Background: In every culture in history, people have found drinking. Some of the social drugs are inhaled, some are chewed etc. and alsosome plants in the form of different decoctions, beverages or inhaling them in the f...
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...
EVALUATION OF ANTI-INFLAMMATORY ACTIVITY OF LALAB PURPUREOUS METHANOLIC LEAVES EXTRACT ON WISTER ALBINO RATS
This work has been done for the investigation of the anti-inflammatory activity of solvent extracts of dried leaves of Lalab purpureous linn. by oral administration at dose of 200 and 400 mg/kg body weight in healthy alb...