Factors affecting superovulation response in cattle.
نویسندگان
چکیده
منابع مشابه
Factors Affecting Superovulation and Embryo Transfer in Boer Goats*
Despite many studies, results of superovulation protocols are not consistent in farm animals. In this study, 151 Boer goats were superovulated to examine the factors affecting superovulation and embryo transfer (MOET). An optimal regime for superovulation treatment was identified as a 4-day treatment with decreasing dosages of 6-7 mg Chinese FSH or 240 mg Canadian FSH. The 4-day treatment with ...
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Although superstimulatory protocols in cattle are usually initiated during mid-cycle, the elective control follicular wave emergence and ovulation have had a great impact on the application of on-farm embryo transfer. However, the most commonly used approach for the synchronization of follicular wave emergence involves the use of estradiol which cannot be used in many parts of the world. Theref...
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Feces typically comprises the greatest loss of ingested energy in ruminants, and the variation in converting digestible energy to metabolizable energy is usually small. Diet digestibility is determined by intrinsic properties of interand intramolecular structure of plant cell walls, which establish the upper potential for the rate and extent of cell wall digestion in ruminants (Mertens, 1993). ...
متن کاملRecent advances in the superovulation in cattle.
The variability in the superovulatory response continues to be one of the most frustrating problems with embryo transfer in cattle. The removal of LH from pituitary extracts has tended to reduce the variability in response, and several studies involving the use of the purified porcine pituitary extract. Folltropin-V are reviewed. The major source of variability in the superovulatory response in...
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Introduction In addition to the requirements for healthy well-managed cattle and the sound application of synchronizing drugs, many other factors can also play a role in determining the success of an AI – estrous synchronization program. Considering the economic investment in semen and drugs, the success of such a program must be judged on the basis of pregnancy rate to the first artificial ins...
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ژورنال
عنوان ژورنال: The Japanese Journal of Veterinary Science
سال: 1986
ISSN: 0021-5295,1881-1442
DOI: 10.1292/jvms1939.48.495