Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function

Improving reproductive efficiency is required to strengthen the production base of high-quality Wagyu beef in Japan. We developed a deterministic profit function (P) for lifetime carcass production of Japanese Black cows to calculate economic values (EVs) for representative female reproductive and c...

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Autores principales:	Shinichiro Ogawa, Suguru Kitajima, Hayato Saito, Masahiro Satoh
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	breeding objective calving interval carcass weight economic value Japanese Black cattle marbling score Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/69e09989b68f4e0abc1966b0a6e9afb6
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spelling	oai:doaj.org-article:69e09989b68f4e0abc1966b0a6e9afb62021-11-25T15:58:21ZDeriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function10.3390/agriculture111110552077-0472https://doaj.org/article/69e09989b68f4e0abc1966b0a6e9afb62021-10-01T00:00:00Zhttps://www.mdpi.com/2077-0472/11/11/1055https://doaj.org/toc/2077-0472Improving reproductive efficiency is required to strengthen the production base of high-quality Wagyu beef in Japan. We developed a deterministic profit function (P) for lifetime carcass production of Japanese Black cows to calculate economic values (EVs) for representative female reproductive and carcass traits. The total calving number per cow was expressed using the age at first calving (AFC) and calving interval (CI). Revenues and costs were calculated from calf market price (CaP) and carcass unit price (CUP). A cubic regression equation was developed with CaP as the response variable and calf market weight as the explanatory variable. A multiple linear regression equation was developed with CUP as the response variable and five carcass traits as explanatory variables. EVs were calculated using the first-order partial derivatives of P. The first-order partial derivative of CI was a function of CI with the quadratic term of CI in the denominator. Values of EVs for AFC and CI were negative, suggesting that earlier AFC and shorter CI increase the lifetime profit of Japanese Black cows through producing higher numbers of feeder cattle per cow. However, this might bring benefit to only calf-producing farmers. The results would contribute to achieving sustainable high-quality Wagyu beef production.Shinichiro OgawaSuguru KitajimaHayato SaitoMasahiro SatohMDPI AGarticlebreeding objectivecalving intervalcarcass weighteconomic valueJapanese Black cattlemarbling scoreAgriculture (General)S1-972ENAgriculture, Vol 11, Iss 1055, p 1055 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	breeding objective calving interval carcass weight economic value Japanese Black cattle marbling score Agriculture (General) S1-972
spellingShingle	breeding objective calving interval carcass weight economic value Japanese Black cattle marbling score Agriculture (General) S1-972 Shinichiro Ogawa Suguru Kitajima Hayato Saito Masahiro Satoh Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function
description	Improving reproductive efficiency is required to strengthen the production base of high-quality Wagyu beef in Japan. We developed a deterministic profit function (P) for lifetime carcass production of Japanese Black cows to calculate economic values (EVs) for representative female reproductive and carcass traits. The total calving number per cow was expressed using the age at first calving (AFC) and calving interval (CI). Revenues and costs were calculated from calf market price (CaP) and carcass unit price (CUP). A cubic regression equation was developed with CaP as the response variable and calf market weight as the explanatory variable. A multiple linear regression equation was developed with CUP as the response variable and five carcass traits as explanatory variables. EVs were calculated using the first-order partial derivatives of P. The first-order partial derivative of CI was a function of CI with the quadratic term of CI in the denominator. Values of EVs for AFC and CI were negative, suggesting that earlier AFC and shorter CI increase the lifetime profit of Japanese Black cows through producing higher numbers of feeder cattle per cow. However, this might bring benefit to only calf-producing farmers. The results would contribute to achieving sustainable high-quality Wagyu beef production.
format	article
author	Shinichiro Ogawa Suguru Kitajima Hayato Saito Masahiro Satoh
author_facet	Shinichiro Ogawa Suguru Kitajima Hayato Saito Masahiro Satoh
author_sort	Shinichiro Ogawa
title	Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function
title_short	Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function
title_full	Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function
title_fullStr	Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function
title_full_unstemmed	Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function
title_sort	deriving economic values for female reproductive traits in lifetime carcass production of japanese black cows using deterministic profit function
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/69e09989b68f4e0abc1966b0a6e9afb6
work_keys_str_mv	AT shinichiroogawa derivingeconomicvaluesforfemalereproductivetraitsinlifetimecarcassproductionofjapaneseblackcowsusingdeterministicprofitfunction AT sugurukitajima derivingeconomicvaluesforfemalereproductivetraitsinlifetimecarcassproductionofjapaneseblackcowsusingdeterministicprofitfunction AT hayatosaito derivingeconomicvaluesforfemalereproductivetraitsinlifetimecarcassproductionofjapaneseblackcowsusingdeterministicprofitfunction AT masahirosatoh derivingeconomicvaluesforfemalereproductivetraitsinlifetimecarcassproductionofjapaneseblackcowsusingdeterministicprofitfunction
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Deriving Economic Values for Female Reproductive Traits in Lifetime Carcass Production of Japanese Black Cows Using Deterministic Profit Function

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