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Abstract

The primary objective of this study was to investigate the effects of abnormal ovarian cycles during the pre-service postpartum period on subsequent reproductive performance of high-producing Holstein cows. The study was conducted in a commercial dairy farm with approximately 150 lactating cows, in ...

Author(s)
Shrestha, H. K.; Nakao, T.; Suzuki, T.; Higaki, T.; Akita, M.
Publisher
Elsevier Science Inc., New York, USA
Citation
Theriogenology, 2004, 61, 7/8, pp 1559-1571
Abstract

A microtitre plate enzyme immunoassay (EIA) for the determination of estrone-3-glucuronide (EIG) and 5-β-pregnan-3-α, 20-α-diol 3-glucosiduronate (PdG) in giant panda urine was established at Ueno Zoo. Data were collected from a single captive female during one reproductive season. Antisera against ...

Author(s)
Kuramochi, H.; Nagano, T.; Saitou, K.; Sagawa, Y.; MacDonald, E. A.; Czekala, N.
Publisher
Japanese Association of Zoos and Aquariums, Tokyo, Japan
Citation
Journal of Japanese Association of Zoos and Aquariums, 2008, 49, 3, pp 69-77
Abstract

The effect of CIDR inclusion for seven days after timed artificial insemination (TAI) on reproductive performance was determined in Japanese Black cows. Ovulation was synchronized at one month after normal parturition and was subjected to TAI. Cows were divided into two groups with CIDR inclusion...

Author(s)
Kitahara, G.; Hidaka, K.; Suzuki, Y.; Mine, Y.; Kajisa, M.; Kobayashi, I.; Kamimura, S.
Publisher
Japan Veterinary Medical Association, Tokyo, Japan
Citation
Journal of the Japan Veterinary Medical Association, 2011, 64, 11, pp 870-873
AbstractFull Text

Some dairy cows display a pronounced reduction in first milk yield after estrus onset. The objective of this study was to evaluate the usefulness of the pronounced reduction in milk yield as an indicator of the optimal time for artificial insemination (AI). We confirmed that the frequency of a...

Author(s)
Koyama, K.; Koyama, T.; Matsui, Y.; Sugimoto, M.; Kusakari, N.; Osaka, I.; Nagano, M.
Publisher
Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
Citation
Japanese Journal of Veterinary Research, 2017, 65, 2, pp 55-63

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