Results 131 to 140 of about 220 (158)
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Progesterone receptors in the endometrium of normal and repeat-breeder cows
Animal Reproduction Science, 1987Abstract Progesterone receptors were measured in the cytosol and nuclear fractions of endometrial cells from repeat-breeder (RB) and normal (NB) cows on day 6 post-breeding (inseminated group) and on days 3, 6 and 7 after estrus (non-inseminated group).
A.P.Almeida Fo, N. Ayalon, B. Bartoov
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Evaluating sire effects on cow fertility: Timed AI and repeat-breeder dairy cows
Animal Reproduction Science, 2019In this single herd observational study, there is investigation of the effects of 81 sires (with 11,424 artificial inseminations) on conception rates in 1790 Holstein cows for 5 years. Sires were catagorized based on the published sire conception rate (SCR) into different sire fertility groups (low, average and high fertility sires). The performance of
Hany, Abdalla +2 more
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ALTERATION OF PHYSIOLOGICAL PARAMETERS IN REPEAT BREEDER COWS
2022Repeat breeding is a significant reproductive problem to develop in a cattle industry in developing country. In this study, we demonstrated physiological alterations in terms of hematological, biochemical and hormonal profile being developed in repeat breeder cows.
Sultana, Jabin +6 more
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Cytological endometritis diagnosed at artificial insemination in repeat breeder dairy cows
Reproduction in Domestic Animals, 2017ContentsThis study aimed to (i) assess the prevalence of cytological endometritis (CYTO) diagnosed at artificial insemination (AI); (ii) evaluate the effect of CYTO on the pregnancy outcome of the same AI sample; and (iii) determine the risk factors associated with CYTO diagnosed at AI in repeat breeder (RB) dairy cows.
O Bogado Pascottini +2 more
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Fertilisation and embryonic survival rates in dairy cows culled as repeat breeders
Veterinary Record, 1983Seventy-three Friesian dairy cows culled as repeat breeders were slaughtered three to six, 16 to 19 or 40 to 49 days after insemination to establish fertilisation and embryo survival rates. Fertilisation rate following a single insemination was 72 per cent.
K J, O'Farrell +3 more
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Levels of Blood Biochemicals of Repeat Breeder Cows in Field Conditions
Vishwambhar Patodkar +4 moreexaly +2 more sources
Investigation of Immunological Infertility in Repeat Breeder Cows
2018Interms of the future of livestock businesses, obtaining calf from cows iscrucial. There are many factors that prevent fertility. These factors includehereditary and functional problems (an- oestrus, sub-oestrus, cysts),infectious diseases, and miscarriage. It is noteworthy that some cows do notbecome pregnant despite the numerous inseminations even in
GÜMÜŞAY, B. Kemal +2 more
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Study of Repeat Breeder of Dairy Cows in Farmer Level
2012One of the important reproductive disorders in dairy cows was repeat breeding. Economic losses was quite high, due to the low reproductive efficiency and productivity. Breeder is one of the risk faktors on the incidence of repeat breeding. The aims of this research were to determine the incidence of repeat breeding cases in dairy cattle at Special ...
Prihatno, Surya Agus +3 more
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Fertility of repeat breeder cows in subsequent lactations
Veterinary Record, 1998openaire +2 more sources