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http://dx.doi.org/10.5762/KAIS.2020.21.7.255

Growth, Body shape and Carcass cutting yield traits of Duroc and Crossbred(Duroc×Pietrain×Pietrain)pigs  

Kim, Young Sin (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Kim, JeongA (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Jeong, Yong Dae (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Choi, Yo Han (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Cho, Eun Seok (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Chung, Hak Jae (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Sa, Soo Jin (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Beak, Sun Young (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Hong, Joon Ki (Swine Science Division, National Institute of Animal Science, Rural Development Administration)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.7, 2020 , pp. 255-261 More about this Journal
Abstract
This study was undertaken to evaluate the growth, body shape and carcass cutting yield traits of Duroc (D) and crossbred (Duroc×Pietrain×Pietrain; DPP) pigs. A total of 147 D and 101 DPP pigs were used for analyzing the growth trait, whereas 16 D and 16 DPP pigs were evaluated for carcass yields. Backfat thickness (BF) and average daily feed intake (ADFI) were significantly higher in D (14.07±0.24 mm, 2,101 g) than in DPP (12.69±3.25 mm, 1,909 g) (p <0.001). Moreover, D exhibited significantly higher body shape traits including body height (BH), chest depth (CD) and chest width (CW), as compared to DPP pigs (p <0.001). No differences were observed for body length (BL) between the two strains. Analysis of the carcass cutting yield traits determined for D and DPP were in the order: ham (HM; 31.17% and 33.43%), belly (BY; 23.40% and 19.55%), and picnic shoulder (PS; 16.54% and 16.87%), respectively. Then, HM showed a difference of 2.26% P with D(31.17%) and DPP(33.43%), while BY showed a difference of 3.85% P with D(23.40%) and DPP(19.55%). Taken together, our results indicate that DPP has a better feed efficiency than D, and therefore has the potential to increase the production of low-fat pork, targeting consumers having a high preference who have opted for a healthy lifestyle. These results can be used as basic data for developing an ideal pig breed.
Keywords
Crossbred pig; Duroc; Pietrain; Growth; Body shape; Carcass cutting yield;
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