Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs
The Berkshire pig (Sus domestica L.) breed has thin muscle fibers and excellent water-holding capacity. The Berkshire meat makes it widely accepted in the Japanese premium pork market. This study evaluates the accuracy of improving carcass quality with the use of live animal records of Berkshire pig...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2011-10-01
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| Series: | Scientia Agricola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500013 |
| _version_ | 1798045143685660672 |
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| author | Masamitsu Tomiyama Takeshi Kanetani Yuuko Tatsukawa Hisashi Mori Takuro Oikawa |
| author_facet | Masamitsu Tomiyama Takeshi Kanetani Yuuko Tatsukawa Hisashi Mori Takuro Oikawa |
| author_sort | Masamitsu Tomiyama |
| collection | DOAJ |
| description | The Berkshire pig (Sus domestica L.) breed has thin muscle fibers and excellent water-holding capacity. The Berkshire meat makes it widely accepted in the Japanese premium pork market. This study evaluates the accuracy of improving carcass quality with the use of live animal records of Berkshire pigs. Traits analyzed in live animals were: body weight at 60 days of age (W60), age at finish (AGF), daily weight gain from birth to finish (DG), back fat thickness at finish (BFTF), and loin eye area at finish (LEAF), and in carcasses were: carcass weight, loin eye area (LEA), and subcutaneous fat thickness (SCF) at some points, using the records of 4,773 purebred Berkshire pigs. Variance components for the traits were estimated according to the animal model by the Restricted Maximum Likelihood (REML) procedure using the VCE6 program (Neumaier and Groeneveld, 1998). Correlated responses were also calculated. Genetic correlations of back fat thickness (BFT) in live animals with SCF in slaughtered animals were strong, whereas that of LEA between live and slaughtered animals was low. The expected gains by actual selection including W60 and BFTF as selection criterion were superior to other selections. Therefore, selection of live animals at an early stage of growth would be conducive to the production of high quality meat. |
| first_indexed | 2024-04-11T23:15:51Z |
| format | Article |
| id | doaj.art-ccc9452a3abf41ae9b38bdc20b82bd4d |
| institution | Directory Open Access Journal |
| issn | 0103-9016 1678-992X |
| language | English |
| last_indexed | 2024-04-11T23:15:51Z |
| publishDate | 2011-10-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Scientia Agricola |
| spelling | doaj.art-ccc9452a3abf41ae9b38bdc20b82bd4d2022-12-22T03:57:37ZengUniversidade de São PauloScientia Agricola0103-90161678-992X2011-10-0168559459710.1590/S0103-90162011000500013Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigsMasamitsu TomiyamaTakeshi KanetaniYuuko TatsukawaHisashi MoriTakuro OikawaThe Berkshire pig (Sus domestica L.) breed has thin muscle fibers and excellent water-holding capacity. The Berkshire meat makes it widely accepted in the Japanese premium pork market. This study evaluates the accuracy of improving carcass quality with the use of live animal records of Berkshire pigs. Traits analyzed in live animals were: body weight at 60 days of age (W60), age at finish (AGF), daily weight gain from birth to finish (DG), back fat thickness at finish (BFTF), and loin eye area at finish (LEAF), and in carcasses were: carcass weight, loin eye area (LEA), and subcutaneous fat thickness (SCF) at some points, using the records of 4,773 purebred Berkshire pigs. Variance components for the traits were estimated according to the animal model by the Restricted Maximum Likelihood (REML) procedure using the VCE6 program (Neumaier and Groeneveld, 1998). Correlated responses were also calculated. Genetic correlations of back fat thickness (BFT) in live animals with SCF in slaughtered animals were strong, whereas that of LEA between live and slaughtered animals was low. The expected gains by actual selection including W60 and BFTF as selection criterion were superior to other selections. Therefore, selection of live animals at an early stage of growth would be conducive to the production of high quality meat.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500013correlated responsepig breedsmeat productivity traitultrasound equipment |
| spellingShingle | Masamitsu Tomiyama Takeshi Kanetani Yuuko Tatsukawa Hisashi Mori Takuro Oikawa Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs Scientia Agricola correlated response pig breeds meat productivity trait ultrasound equipment |
| title | Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs |
| title_full | Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs |
| title_fullStr | Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs |
| title_full_unstemmed | Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs |
| title_short | Genetic relationships and expected responses for genetic improvement of carcass traits of Berkshire pigs |
| title_sort | genetic relationships and expected responses for genetic improvement of carcass traits of berkshire pigs |
| topic | correlated response pig breeds meat productivity trait ultrasound equipment |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000500013 |
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