POSTWEANING VAGINAL MUCUS CONDUCTIVITY AND BREEDING PERFORMANCE AT ARTIFICIAL INSEMINATION IN SWINE
نویسندگان
چکیده
منابع مشابه
Artificial Insemination in Swine
The world population is 6.4 billion people approximately and is constantly growing. In this context, there is the expectation that it will reach 8.1 billion in 2030 and nine billion in 2050. In the next 25 years, this population growth will demand some 50% increase in food production. So, the world will be required some 53% increase in meat production, therefore elevating from 367 to 562 millio...
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Current Status of AI Use The USA swine breeding herd has been reported to include 3.9 million sows. Approximately 60% of these sows were determined to have been mated by artificial insemination. Each sow received 6.5 doses of semen annually, for a total of 25 million doses utilized in a single year (1999, Boar Semen Conference). Most of the AI is performed with 3 billion sperm in 80 cc of a 5-d...
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Horse breeding is the procedure by which an adequate number of sperm are deposited into the uterus of a “healthy” mare at the right time. Although semen deposition is performed in all breeds by natural cover (NC), it is often, and with increasing frequency, done artificially. Although the main difference between natural breeding and artificial insemination (AI) is the delivery method of semen i...
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Artificial insemination (AI) in swine is not a new technique and reports as early as the 1930s (Lush, 1925) describe collecting semen for AI. However, because of farm structure changes, increasing farm sizes and separation of production stages, interest in intensive pig production is growing and AI has become a critical component in modern pig production. In 2001, nearly 60% of North American s...
متن کاملSperm Concentration on the Intrauterine Artificial Insemination in Swine
The aim of this work was to evaluate the efficiency of the intrauterine insemination (IUI) in swine, considering the conception rate, farrowing rate, litter size (alive born pigs). For the IUI, the females had been insemination at 24 and 48 hours after the estrus detection, and the inseminating doses of 500 million, 1 billion, 1.5 billion and 2 billion spermatozoa in 20 mL extender had been use...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1990
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas90-057