Effects of LH-RH analogue on the ovulation rate and embryo quality in heifers superovulated with PMSG and PGF2 alpha.
نویسندگان
چکیده
منابع مشابه
O-11: Immunoneutralization of Inhibin Alpha Subunit as A Tool for Improving Farm Animal Fertility
Background: The objectives of a series of studies undertaken was to improve farm animal reproductive efficiency in terms of embryo production efficiency, conception rate and litter size by immunoneutralization of inhibin in conjunction with other conventional reproductive techniques. Materials and Methods: A recombinant porcine inhibin alpha-subunit mature peptide was produced by mass scale and...
متن کاملEffects of seasonal changes on the ovulation rate and embryo quality in superovulated Black Suffolk ewes.
OBJECTIVE The objective of this study was to investigate the effects of seasonal changes on the superovulation in Black Suffolk ewes, particularly the ovulation rate and embryo quality. DESIGN Black Suffolk ewes were superovulated either in May (n=22) or in September (n=21), 2013. After estrus synchronization with CIDR, the donor ewes were superovulated with PMSG and seven decreasing doses of...
متن کاملSuperovulation of Beef Heifers with Follicle Stimulating Hormone or Human Menopausal Gonadotropin: Acute Effects on Hormone Secretion
The effects of superovulatory treatment (follicle stimulating hormone [FSH] versus human menopausal gonadotropin [HMG]) and of route of administration (intramuscular versus intravenous) of prostaglandin F2a (PGF2a) on hormonal profiles were determined in 32 Angus x Hereford heifers for breeding and subsequent embryo collection and transfer. Heifers were superstimulated either with FSH (total of...
متن کاملEffect of LH Treated Ovine Oviductal Epithelial Cell Co-Culture System on Murine Pre-Embryo Development
Background This study was designed to develop a new co-culture system, assess the effect of luteinizing hormone (LH) using sequential media to promote development and increase the quality of 2-cell murine embryos through the 8-16 cell stage to morula and blastocyst stages. MaterialsAndMethods Monolayers for co-culture were prepared from ovine oviduct epithelial cells (OOEC) in DMEM/F12 medium a...
متن کاملFertilization rate and embryo quality in superovulated Holstein heifers artificially inseminated with X-sorted or unsorted sperm
Although studies have demonstrated reasonable pregnancy rates in single-ovulating heifers inseminated with sexed sperm, it is not yet clear if sexed sperm can be successfully used in superovulated females. Therefore, the objective of this trial was to determine fertilization rate and embryo quality in superovulated heifers inseminated with frozen-thawed Xchromosome bearing sperm at 2 different ...
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ورودعنوان ژورنال:
- The Japanese journal of veterinary research
دوره 32 4 شماره
صفحات -
تاریخ انتشار 1984