Search Results - "Takeda, Hisato"

Simulation of the lifetime productivity of a dairy herd in Japan according to the number of days to first service of cows by Yamazaki, Takeshi, Takeda, Hisato, Sasaki, Osamu

“…To determine the optimal voluntary waiting period to first service after calving for maximizing the lifetime productivity of cows in a dairy herd, we simulated…”
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Prediction of random-regression coefficient for daily milk yield after 305 days in milk by using the regression-coefficient estimates from the first 305 days by Yamazaki, Takeshi, Takeda, Hisato, Hagiya, Koichi, Yamaguchi, Satoshi, Sasaki, Osamu

“…Because lactation periods in dairy cows lengthen with increasing total milk production, it is important to predict individual productivities after 305 days in…”
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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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Epistatic effects between pairs of the growth hormone secretagogue receptor 1a, growth hormone, growth hormone receptor, non‐SMC condensin I complex, subunit G and stearoyl‐CoA desaturase genes on carcass, price‐related and fatty acid composition traits in Japanese Black cattle by Komatsu, Masanori, Nishino, Kagetomo, Fujimori, Yuki, Haga, Yasutoshi, Iwama, Nagako, Arakawa, Aisaku, Aihara, Yoshito, Takeda, Hisato, Takahashi, Hideaki

“…Growth hormone secretagogue receptor 1a (GHSR1a), growth hormone (GH), growth hormone receptor (GHR), non‐SMC condensin I complex, subunit G (NCAPG) and…”
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Association between cholecystokinin type A receptor haplotypes and growth traits in Japanese Hinai-dori crossbred chickens by Rikimaru, Kazuhiro, Komatsu, Megumi, Suzuki, Keiichi, Uemoto, Yoshinobu, Takeda, Hisato, Takahashi, Hideaki

“…We previously identified quantitative trait loci for body weight and average daily gain in a common region between MCW0240 (chr 4: 69.9 Mb) and ABR0622 (chr 4:…”
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Effect of a Single-Nucleotide Polymorphism in the Cholecystokinin Type A Receptor Gene on Growth Traits in the Hinai-dori Chicken Breed by Kazuhiro Rikimaru, Hisato Takeda, Yoshinobu Uemoto, Megumi Komatsu, Daiki Takahashi, Keiichi Suzuki, Hideaki Takahashi

“…We have previously reported the association between chicken cholecystokinin type A receptor gene (CCKAR) haplotypes and growth traits in an F2 resource…”
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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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Prediction of random-regression coefficient for daily milk yield after 305 days in milk by using the regression-coefficient estimates from the first 305 days by Yamazaki, Takeshi, Takeda, Hisato, Hagiya, Koichi, Yamaguchi, Satoshi, Sasaki, Osamu

“…Objective: Because lactation periods in dairy cows lengthen with increasing total milk production, it is important to predict individual productivities after…”
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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 correlations among fertility traits and lactation persistency within and across Holstein herds with different milk production during the first three lactations by Yamazaki, T., Takeda, H., Osawa, T., Yamaguchi, S., Hagiya, K.

“…•We examined G × E effects for Holstein cow fertility among herd production levels.•Herd production level did not affect genetic correlations among fertility…”
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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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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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