Large-scale pig raising is characterized by its high density, high output, and high yield. However, while people are pursuing “three highs†in a one-sided manner, some architectural designs that violate the biological characteristics of pigs are threatening the health of pigs and have serious adverse consequences for pig production. 1. Higher proportion of sow endometritis The main causes of endometritis in sows are: contamination of the sheds caused by environmental pollution during sow production. Miscarriage caused by miscarriage caused by inappropriate damage to the birth canal; lack of exercise during pregnancy, childbirth, weakness, resulting in fetal retention in the abdomen, causing fetal decay, and then cause uterine suppuration. The endometritis caused by lack of sow exercise is quite common. In the final analysis, there is a deficiency in the architectural design of a large-scale pig farm. There is no playground on the farm and the sow is kept in cages, resulting in too little activity of the sow. 2, Huang Baixi is endless Large-scale pig farms adopt high-density cages, which allow cages and cages to communicate with each other. Disease prevention and control are difficult. As soon as a litter of piglets develop yellow and white diarrhea, they quickly spread to Linzi piglets, resulting in contamination of the entire pig farm. Circulatory infections are difficult to eradicate. 3. High elimination rate of breeding pigs In many pig farms, there are no sports grounds, boars are kept in the pens, and there is a lack of exercise. In addition, excrement and urine in the pig pens are generally not removed in time. It is also easy to cause boar fat, affect sperm quality, and increase the occurrence of limb and foot disease. The direct use of boars has shortened their useful life. Long-term sows live in narrow confinement barriers, lack of exercise, but also carry heavy production tasks, limb and foot disease, birth canal diseases, etc., often occur, coupled with lack of rest period, sows do not age prematurely, shortening the service life It caused high elimination rate and also reduced production efficiency. In summary, we must have an objective understanding of large-scale pig farms. We must make full use of existing resources and strive to produce more suitable commercial pigs; at the same time, we must follow the laws of nature and try to meet the requirements of pigs as much as possible. Learn characteristics, create a suitable living environment for growth, and ensure that the scale is appropriate and the density is reasonable.
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Large-scale pig farms generally have the following three major drawbacks: