• Journal of The Korean Society of Grassland and Forage Science
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• v.38 no.4
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• pp.273-279
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• 2018

This experiment was conducted to investigate the effects of individual management and group management of Jeju cross-bred horses on the physiological characteristics, productivity, and characteristics of the loin muscle of the horse meat. Sixteen herds of Jeju cross-bred horses older than 44 months were selected as experimental subjects. The experiment was conducted by dividing the herds into eight herds for individual management and another eight herds for group management. Herds were fed with concentrated feed of 2.5% of the body weight for four times a day and roughage and water were fed ad libitum. In the 12th week, the intestinal pH was statistically significantly lower with group management than with individual management (p<0.05). However, no symptoms of colic were observed. With regard to the general composition of the loin muscle, fat content was a statistically significant difference between the 7.83% with individual management and 5.65% with group management (p<0.05), indicating that individual management is more effective than group management in terms of fattening. In conclusion, feeding a concentrated feed at a level of 2.5% of body weight with individual management during fattening of Jeju cross-bred horses could be utilized as a fattening method.

• Journal of Animal Science and Technology
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• v.45 no.1
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• pp.101-112
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• 2003

This study was conducted to investigate the effect of the level of concentrates and pasture grazing in 60 head of spring born Hanwoo heifers(initial body weight; 125.3kg) for 450days from six to 21 months in age. Feeding trial was conducted with 5 treatment(twelve heads/ treatment) which were T1(1.5% of apparent body weight in concentrates and indoor feeding for over-all period), T2(0.5% of apparent body weight in concentrates for pre-pasture grazing and pasture grazing), T3(1.0% of apparent body weight in concentrates for pre-pasture grazing and pasture grazing), T4(1.5% of apparent body weight in concentrates for pre-pasture grazing and pasture grazing), T5(2.0% of apparent body weight in concentrates for pre-pasture grazing and pasture grazing). During the total experimental period, average daily gains by treatments ranged from 0.322 to 0.465kg(average 0.405kg) and higher in the order of T5, T4, T1, T3 and T2, and increased with the level of concentrates feeding for pre-pasture grazing. TDN intakes required per unit of kilogram gain were 9.13 to 9.79kg(average 9.49kg) higher in the order of T1, T3, T5, T4 and T2, For the grazing period, they were ranged from 12.39 to 12.98kg(average 12.68kg), and were not significantly different. But TDN requirements of grazing groups was higher about 15.6% than the indoor feeding group’s. The rate of roughage to concentrates by treatments were 57.8 to 73.6%(average 63.7%). The body weight of 15 and 21 month in ages, that is, the ages at puberty and first conception by treatments were 201.2 to 230.7kg(average 223.8kg) and 270.2 to 331.4kg (average 307.6kg), respectively, and the latter were high per unit of 20.4kg by increasing the level of concentrates feeding for pre-pasture grazing every 0.5% addition of apparent body weight. The age of 225 and 275kg in body weight, that is, the body weight at puberty and first conception by treatments were 14.0 to 17.6 month (average 15.3 month) and 17.9 to 21.7 month(average 19.4), respectively, and the latter were shorter about 1.3 month by increasing the level of concentrates feeding every 0.5% addition of apparent body weight. According to the above results, it may be concluded that spring born Hanwoo heifers are raised at indoor have to feed with 1.8% of body weight in concentrates under full feeding of rice straws for all period from six to 21 months in age, but with 1.5% of apparent body weight in concentrates for grazing period.