The examination of the productive technique of the fattening make a high-quality and large-weight of dressed carcass at the crossbred steer
2010
Akema, M., Fukui-ken. Government Office (Japan) | Sato, T. | Morinaga, F. | Yoshida, S.
To attempt the increase of the weight of the dressed carcass at the crossbred steer, increase roughage at the first term of fattening and feed the whole crop silage of rice at the middle and latter term. A district that many Sudan grass was done at the first term of fattening (roughage concentrate ratio 4:6), and feed the rice plant WCS as a coarse feed since it was mid-term, and B district that standard amount Sudan grass (roughage concentrate ratio 2:8) at the first term and the rice plant straw since mid-term was done. We execute the fattening examination using each district four crossbred steers from 6 months of age to 23 months. The mean weight when forward it was A district: 790.5kg and B district: 786.5kg, there were no difference. There was a significant difference since it was mid-term though the density of vitamin A in the plasma did not have the difference at the first term of fattening. A district of the fodder intake was more than B district since it was fattening mid-term. However, because the attainment weight was the same, the food efficacy became an inferior result. The number of protozoa in lumen fluid has increased obviously by doing a lot of roughage to the promotion period. It was rating by Japan Meat Grading Association, the examination cows were four B2 grades in A district, three B3 grades and one B2 grade in B district. In A district, BMS No. was low, and BCS No. rose by 0.5 points as for the flesh color. It seemed that it was necessary to refrain from rice plant WCS of middle term of fattening to improve the fleshy substance.
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