INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY

Volume 14, No. 07, Month DECEMBER, Year 2018, Pages 2097 - 2106

Influence of charolais sires and seasons on growth performance and carcass characteristics in crossbred steers

Thiwaratkoon, P., Sivapirunthep, P., Tuntivisoottikul, K., Chongcharoen, M., Sitthigripong, R., and Chaosap, C.

Abstract Download PDF

The factors of Charolais sires, and fattened seasons on growth performance and carcass characteristics of beef cattle fattened were determined at Pon Yang Kham Livestock Breeding Cooperatives N.S.C. Ltd., Sakhon Nakhon Province, Thailand. Samples were 18 crossbred (Charolais X (Brahman x Thai Native)) steers. They were offsprings of four different sires (S1 to S4), which were 4, 6, 5, and 3 steers from S1 to S4, respectively. Animals were fed ad libitum with fresh grass, concentrate, and rice straw. In addition, the steers received molasses as a supplement after 6 months of fattening period. The data were collected during 8- 12 months of fattening time. Weight gain and average daily gain (ADG) were calculated. After the animals were slaughtered, the data of carcass characteristics were collected and analysed. The results showed that the sires did not affect all the growth performance and carcass characteristics, except the trait of lean in kg (P<0.05) and percentage of lean (P=0.09). In general, sire had no effect on growth performance and carcass characteristics except S4 which frozen semen was imported from aboard showed higher amount of lean meat than others. The fattening seasons affected weight gain, ADG, and carcass length (P<0.05). The winter season showed higher weight gain, ADG, and carcass length than summer.

Keywords

Charolais sire, growth performance, carcass characteristics

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