Factors Limiting the Pregnancy Rates in Artificially Inseminated Cows in Bangladesh
نویسندگان
چکیده
منابع مشابه
Approaches to increase reproductive efficiency in artificially inseminated dairy cows
Infertility has been linked to numerous factors in high producing dairy cattle in the last decades. The detection of estrus continues to present difficulties and, although progress has been made in regards to estrus synchronization and artificial insemination, the reproductive performance of dairy cows has not improved substantially. Moreover, in warm countries, summer heat stress is a major fa...
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Conception rate of artificially inseminated Holstein cows affected by cloudy vaginal mucus, under intense heat conditions
The objective of this work was to obtain prevalence estimates of cloudy vaginal mucus in artificially inseminated Holstein cows raised under intense heat, in order to assess the effect of meteorological conditions on its occurrence during estrus and to determine its effect on conception rate. In a first study, an association was established between the occurrence of cloudy vaginal mucus during ...
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During spring, summer and winter seasons, Sistani donor cows, with normal reproductive status, were superovulated and embryos were recovered non-surgically on day 7. Grade A blastocyst embryos were either transferred fresh (spring) or frozen (summer and winter). Recovered embryos during summer and winter were exposed to glycerol and frozen using conventional method. During spring season, recipi...
متن کاملWhen Should Dairy Cows Be Inseminated?
INTRODUCTION Reproductive efficiency of the dairy herd is important for the economic success of the dairy operation. One of the most important reproductive technologies of the dairy industry is artificial insemination (AI). Artificial insemination reduces the incidence of sexually transmitted diseases among cattle and increases the use of genetically superior sires to improve performance of the...
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ژورنال
عنوان ژورنال: International Journal of Dairy Science
سال: 2015
ISSN: 1811-9743
DOI: 10.3923/ijds.2015.278.287