evaluation of ghezel- merino, merino- moghani ram semen characteristics in breeding and non-breeding seasons
نویسندگان
چکیده
0
منابع مشابه
Synchrony of ovulation and follicular dynamics in merino ewes treated with GnRH in the breeding and non-breeding seasons.
The effect of gonadotropin releasing hormone (GnRH) treatment on the time of ovulation and the occurrence of follicular dominance during the non-breeding and breeding seasons (experiment 1), and on fertility after artificial insemination (AI) in the non-breeding season (experiment 2), was examined in Merino ewes. Oestrus was synchronized in 40 nulliparous ewes (experiment 1; n = 20, in the non-...
متن کاملBreeding for resistance of Merino sheep, Australia
John Karlsson is a researcher and farmer who has been working on a variety of sheep selection and resistance to parasites for more than 30 years. He is a Senior Veterinary Officer at the Department of Agriculture and Food Western Australia (DAFWA). At DAFWA he has worked on regulatory disease management programmes and providing general advice to livestock farmers since 1978. Al Karlsson is a Zo...
متن کاملEffect of Gonadotropin Releasing Hormone Treatment on Semen Characteristics and Enzymatic Activities of Awassi Rams in Breeding and Non Breeding Seasons
This study was aimed to evaluate the effect of GnRH injection on semen ejaculate characteristics in Awassi rams collected in breeding and non breeding seasons. The study was conducted in late summer to early autumn when breeding activity commences, and in winter during the non breeding season. Twelve mature Awassi rams were used in this study. Animals were randomly allocated into two equal grou...
متن کاملBreeding for disease resistance in Merino sheep in Australia.
Breeding for disease resistance in Merino sheep in Australia has attracted considerable research and development attention. Increased labour costs, the reduced efficacy of common anthelmintics and insecticides, consumer demand for products which are free of chemicals and the poor prognosis of alternative long-term control strategies are all forcing sheep breeders to contemplate the best animal ...
متن کاملeffect of gonadotropin releasing hormone treatment on semen characteristics and enzymatic activities of awassi rams in breeding and non breeding seasons
this study was aimed to evaluate the effect of gnrh injection on semen ejaculate characteristics in awassi rams collected in breeding and non breeding seasons. the study was conducted in late summer to early autumn when breeding activity commences, and in winter during the non breeding season. twelve mature awassi rams were used in this study. animals were randomly allocated into two equal grou...
متن کاملRelationship between Mineral Composition of Seminal Plasma and Semen Quality in Various Ram Breeds
Background: Seminal plasma of mammals is a complex fluid, which serves as a carrier for the spermatozoa on their journey from the male testes to their target, the oocyte. Seminal plasma contains a variety of biochemical components, some of which are relatively specific for the regulation of sperm function. The objective of this study was to investigate enzyme activities aspartate-amino-transfer...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
پژوهش های علوم دامیجلد ۲۴، شماره ۳، صفحات ۳۱-۴۱
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023