Shelf cattle are lean cows that have not been fattened. Shelf cattle are good and bad, directly affecting the fattening effect. Therefore, the purchase of shelf cattle is the first key issue of the fattening technology effect. When you buy a rack of cattle, you need to use the following six aspects:
1. Variety selection. The preferred improved breeds of cattle or hybrid breeds are mainly crossbred cows such as Simmental, Charolais, Limousin and Hereford, and local breeds such as Luxi, Qinchuan and Nanyang have Mongolian cattle. Good traits, strong resistance to changes in the external environment, resistance to rough feeding, and good fattening effect.
2. Age choice. In principle, shelf cattle 2 to 6 years old are selected. Because the shelf cattle within 2 to 6 years of age are not fully mature, the body organs are in the growth stage. During this period, the cattle have large food intake, good digestive system, fast metabolism, and the best fattening effect.
3. Gender selection. The author believes that when using starch slag to fatten beef cattle, try to choose bulls or infertile cows, and choose fewer or no yak and high-yield cows. Due to gender differences, bulls and infertile cows have high levels of androgens, strong body fluids, and rapid metabolism. Yaks have low levels of androgens. High-yield cows are overworked and fattened under the same feeding and fattening conditions. poor effect.
4. To choose the shelf cattle for the season. In the cold season, it is better to choose darker shelf cattle, and in the warm season, choose lighter shelf cattle.
5. To buy healthy disease-free shelf fattening cattle.
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