The quality of boars has a direct impact on the efficiency of raising pigs. A common phenomenon among rural pig farmers is the use of finishing pig feed to feed boars. As a result, boars often cause rapid growth, late sexual maturity, and poor libido. The testicular function is abnormal and sperm production does not occur normally. So, why is it difficult to feed boars with fattening pigs? How do you prepare high quality and cheap boar feeds? 1. Boar energy levels are lower than finishing pigs. Boars maintain their own growth needs, semen production, breeding activities and other energy needs, the general feed should reach 11.3 ~ 12.1MJ/kg. Under normal circumstances, feeds meeting the nutritional standards, breeding boars are fed 2.3 to 2.5 kg per day. 2. The requirement of trace elements for boars is higher than for finishing pigs. The reasonable contents of calcium and phosphorus in boar diets were 0.85%-0.90% and 0.7%-0.8%, respectively, and the reasonable contents of manganese and iron were 20-30 mg and 80-90 mg per kilogram of diet, respectively. 3. Boar vitamin E requirements higher than finishing pigs. After adding vitamin E 40-80mg/kg to the boar diet, the fecundity will be significantly enhanced. In addition to the need to use special feed for boars, adding 0.5 to 1 kg of fresh green feed each day can keep the boar's good appetite and libido, and improve the quality of the semen. Mercury Thermometer,Glass Mercury Thermometer,Glass Clinical Thermometer,Double Scale Clinical Thermometer Suzhou Xuanweicheng Biotechnology Co., Ltd , https://www.xwc-medical.com