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World statistics for artificial insemination in cattle
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Influence of postpartum energy restriction on energy status, plasma LH and oestradiol secretion and follicular development in suckled beef cows.
TLDR
Effects of postpartum energy restriction, parity and time after parturition on energy status, LH secretion and follicular growth were investigated, and cows fed diets supplying 100% of energy requirements had more large follicles than did cows fed low energy diets.
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Treatment of metritis with antibiotics or prostaglandin F2 alpha and influence of ovarian cyclicity in dairy cows.
TLDR
The physiologic status, ie, ovarian cyclicity, was shown to exert a significant influence on the time required for recovery, and on the average, anestrous cows recovered in 14 days and conceived 34 days later than did cycling cows.
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Hygienic aspects of storage and use of semen for artificial insemination.
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Embryo transfer in small ruminants: the method of choice for health control in germplasm exchanges
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Identification and quantitative estimation of a lignan in human and bovine semen.
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Oestradiol-17β, progesterone and 17α-hydroxyprogesterone concentrations in jugular venous plasma in cows prior to and during oestrus
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Pregnancy-specific protein B, progesterone concentrations and embryonic mortality during early pregnancy in dairy cows.
TLDR
Pregnancy-specific protein B (PSPB) and progesterone concentrations were determined by RIAs in venous plasma during early pregnancy after 177 artificial inseminations (AI) performed in 76 cows and 71 heifers and in cows with extended luteal function and subsequently found to be non-pregnant.
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Estrous behavior, progesterone in peripheral plasma and milk in dairy goats at onset of breeding season.
Two large flocks of 60 and 120 French Alpine dairy does were studied beginning in late June. Estrous behavior was checked daily in the presence of bucks, and numerous blood and milk samples were…
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The sexing of bovine embryos in the field
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