Search Results - "Nishiura, Akiko"

The economic value of days open in Holstein cows in Japan based on simulated changes in conception rate by Sasaki, Osamu, Takeda, Hisato, Nishiura, Akiko

“…Increasing herd‐life length and culling parity with increasing conception rate (CR) is necessary to increase lifetime profit from dairy cow production…”
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Estimation of the economic value of herd‐life length based on simulated changes in survival rate by Sasaki, Osamu, Takeda, Hisato, Nishiura, Akiko

“…Functional traits are an important aspect of long‐term breeding strategies for dairy cattle. In this regard, it is necessary to develop simple methods for…”
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Genetic analysis of fat‐to‐protein ratio, milk yield and somatic cell score of Holstein cows in Japan in the first three lactations by using a random regression model by Nishiura, Akiko, Sasaki, Osamu, Aihara, Mitsuo, Takeda, Hisato, Satoh, Masahiro

“…We estimated the genetic parameters of fat‐to‐protein ratio (FPR) and the genetic correlations between FPR and milk yield or somatic cell score in the first…”
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Genetic evaluation of the longevity of the Holstein population in Japan using a Weibull proportional hazard model by SASAKI, Osamu, AIHARA, Mitsuo, HAGIYA, Koichi, NISHIURA, Akiko, ISHII, Kazuo, SATOH, Masahiro

“…The objective of this study was to confirm the stability of the genetic estimation of longevity of the Holstein population in Japan. Data on the first 10…”
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Relationship between the lactation curve and udder disease incidence in different lactation stages in first-lactation Holstein cows by Yamazaki, T., National Agricultural Research Center for Hokkaido Region, Sapporo (Japan), Takeda, H, Nishiura, A, Togashi, K

“…ABSTRACT We examined the relationships between the shape of the first parity lactation curve and udder disease incidence at different stages of lactation in…”
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Effects of first breeding age on the production and reproduction of Holstein heifers up to the third lactation by SAKAGUCHI, Minoru, SUZUKI, Takahiro, SASAMOTO, Yoshihiko, TAKAHASHI, Yoshiyuki, NISHIURA, Akiko, AOKI, Mari

“…ABSTRACT The effects of early initiation of first service for dairy heifers on their fertility and productivity up to the third lactation were examined under…”
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Genetic correlations between milk fatty acids grouped according to origin until 95 days in milk and fertility of Holstein cows in Japan by Yamazaki, Takeshi, Nishiura, Akiko, Chiba, Yuzu, Nakagawa, Satoshi, Abe, Hayato, Nakahori, Yuka, Hagiya, Koichi, Osawa, Takefumi, Masuda, Yutaka

“…Mitigating the effect of negative energy balance in early lactation is important for improving the fertility of dairy cows, and milk fatty acid (FA)…”
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Prediction of energy balance from milk traits of Holsteins in Japan by Nishiura, Akiko, Sasaki, Osamu, Tanigawa, Tamako, Kubota, Asuka, Takeda, Hisato, Saito, Yuriko

“…We predicted the energy balance (EB) of Holstein cows in Japan from milk traits obtained by herd testing. Records covered 156 lactations of 102 cows. The…”
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Genetic relationship of energy balance predicted from milk traits with fertility in Japanese Holsteins by Nishiura, Akiko, Sasaki, Osamu, Yamazaki, Takeshi, Yamaguchi, Shigeki, Hagiya, Koichi, Nakagawa, Satoshi, Abe, Hayato, Nakahori, Yuka, Saito, Yuriko, Tatebayashi, Ryoki, Masuda, Yutaka

“…We predicted the energy balance of cows from milk traits and estimated the genetic correlations of predicted energy balance (PEB) with fertility traits for the…”
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Effect of mate selection on fuzzy selective mating criteria in closed dairy multiple ovulation and embryo transfer nucleus programs by Nakamura, A. (Japan Science and Technology Corp., Kawaguchi, Saitama), Togashi, K, Yamamoto, N, Nishiura, A

“…ABSTRACT In order to control rates of response and inbreeding, mate selection using fuzzy selective mating criteria (FMC) was investigated in adult multiple…”
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Genetic analysis of fat‐to‐protein ratio, milk yield and somatic cell score of H olstein cows in J apan in the first three lactations by using a random regression model by Nishiura, Akiko, Sasaki, Osamu, Aihara, Mitsuo, Takeda, Hisato, Satoh, Masahiro

“…We estimated the genetic parameters of fat‐to‐protein ratio ( FPR ) and the genetic correlations between FPR and milk yield or somatic cell score in the first…”
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Phenotypic Relationship between Lactation Persistency and Change in Body Condition Score in First-lactation Holstein Cows by Yamazaki, Takeshi, Takeda, Hisato, Nishiura, Akiko, Sasai, Youji, Sugawara, Naoko, Togashi, Kenji

“…We examined the correlations between lactation curve shape, including persistency and changes in body condition score (BCS) during early-stage (0 to 30 days in…”
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ORIGINAL ARTICLE: Effects of first breeding age on the production and reproduction of Holstein heifers up to the third lactation by SAKAGUCHI, Minoru, SUZUKI, Takahiro, SASAMOTO, Yoshihiko, TAKAHASHI, Yoshiyuki, NISHIURA, Akiko, AOKI, Mari

“…The effects of early initiation of first service for dairy heifers on their fertility and productivity up to the third lactation were examined under constant…”
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Phenotypic Relationship between Lactation Persistency and Change in Body Condition Score in First-lactation Holstein Cows by Yamazaki, Takeshi, Takeda, Hisato, Nishiura, Akiko, Sasai, Youji, Sugawara, Naoko, Togashi, Kenji

“…We examined the correlations between lactation curve shape, including persistency and changes in body condition score (BCS) during early-stage (0 to 30 days in…”
Get full text