A novel diagnostic technique to determine uterine health of Holstein cows at 35 days postpartum
نویسندگان
چکیده
منابع مشابه
Postpartum uterine diseases in dairy cows
Uterine diseases in dairy cows can be classified as puerperal metritis, clinical metritis, clinical endometritis, and subclinical endometritis. These diseases are highly prevalent (affect between 20 and 30% of dairy cows) in high producing dairy cows and have been associated with decreased pregnancy per artificial insemination (AI), extended interval to pregnancy, increased culling, and economi...
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A longitudinal study was conducted to examine the relationship between lameness and delayed ovarian cyclicity during the first 60 d postpartum and days to first luteal activity during the first 300 d postpartum in Holstein cows. Two hundred thirty-eight cows from a 600-cow dairy that calved during a 12-mo period were used. Cows were classified into 1 of 6 categories of lameness during the first...
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Data containing 14,188 lactation and reproductive records of Korean Holstein cows at first parity distributed across 3,734 herd-year-season groups were analyzed to get genetic (co)variance estimates for milk yield, fat yield, calving ease, and days open. Milk and Fat yields were adjusted to 305 d. Heritabilities and genetic correlations were estimated in two different animal models on which wer...
متن کاملEffect of Methylergometrine Maleate on Uterine Involution in Postpartum Cows
Eighteen Postpartum Holstein Friesian (HF) crossbred cows aged between 2nd and 5th lactations were selected and randomly divided into 2 experimental groups viz., group I and II (control). On day 2 Postpartum group I and II cows were treated with an intramuscular injection of 5 mg methyl ergometrine maleate and 5 ml normal saline, respectively. The cervical involution progressed rapidly and on d...
متن کاملIsolation and Identification of Uterine Microorganisms in Postpartum Dairy Cows
Uterine infection is a major problem in reproductive management and inefficient estrous detection. The bovine uterus is sterile before calving and the cervix provides a barrier against intrauterine invasion by pathogens during gestation1. Following calving, the uterus may become infected due to presence of infectious or non-specific microorganisms. Several bacterial, protozoan, viral and mycopl...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 2012
ISSN: 0022-0302
DOI: 10.3168/jds.2011-4867