Exposing dairy bulls to high temperature-humidity index during spermatogenesis compromises subsequent embryo development in vitro
نویسندگان
چکیده
منابع مشابه
Effect of Genetic Group, Season, Their Interaction, Temperature, Humidity and Temperature-Humidity Index on Maintenance Behavior of Stud Bulls
Stud bull plays an important role in the development of animal husbandry. Detailed knowledge about maintenance behavior of stud bulls is essential for practicing better management conditions in the farm to support the artificial insemination (AI) industry demand. Therefore, a comparative study was conducted on stud bulls to evaluate the effect of genetic group, season, genetic group × season in...
متن کاملEvaluation of different strain mice during in vitro fertilization and embryo development in response to superovulation
Background: Mice are the most commonly used animal in reproductive research and following the urgent need for these type of studies and also due to the increased interest in the ethical principle of animal rights, four various inbred and outbred strains of the laboratory mouse were evaluated to select the more efficient one for reproductive research. Materials and methods: 60 female and 16 mal...
متن کاملA Re-evaluation of the Impact of Temperature Humidity Index (THI) and Black Globe Humidity Index (BGHI) on Milk Production in High Producing Dairy Cows
The temperature humidity index (THI) was originally developed for humans by Thom (1958) and extended to cattle by Berry et al (1964). It is currently used to estimate cooling requirements of dairy cattle in order to improve the efficiency of management strategies to alleviate heat stress. The Livestock Conservation Institute evaluated the biological responses to varying THI values and categoriz...
متن کاملSeasonal pattern of mortality and relationships between mortality and temperature-humidity index in dairy cows.
The 2 studies described investigated seasonal variations of mortality and temperature-humidity index (THI)-mortality relationships in dairy cows. Mortality data were extracted from the Italian Bovine Spongiform Encephalopathy databases, which contain records on cows older than 24 mo that died on a farm from all causes (98% of total records), were slaughtered in an emergency state, or were sent ...
متن کاملTesticular development and establishment of spermatogenesis in Holstein bulls.
Fifty-two Holstein bulls were castrated at 12, 16, 20, 24, 28 or 32 weeks to (1) determine whether testicular development is influenced by season of birth (April or October) and (2) examine quantitatively the establishment of spermatogenesis. Season of birth (spring or fall) did not influence (P less than .05) either testis weight at castration or the establishment of spermatogenesis. With age ...
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ژورنال
عنوان ژورنال: Theriogenology
سال: 2020
ISSN: 0093-691X
DOI: 10.1016/j.theriogenology.2019.08.034