Processed Frozen Tuna,High Grade Tuna,Bigeye Tuna Can,Tuna Chunk in Oil Can Zhejiang Ocean Family Co., Ltd., , https://www.ocean-family.com
Three-element hybrid lean hog breeding technique
First, the genetic combination of varieties should be scientific and standardized. The bloodlines of the parents of the Sanyuan pig must be clear and clear, and there must be specific signs and information for examination. At present, the ideal breed for farmers to raise is the combination of "two oceans and one soil" such as Chang Damei. Second, the choice of Miaozhu must be well-growth and early growth. The sign of good growth and development of the Miao pigs is that they can reach 15-17.5 kg in weight on the 45th day. If the age of a piglet cannot be known, it can be determined by observing the degree of sexual development of the piglet. If the piglets are between 20 and 25 kg, the boar's testicles and the sow's cunt are not germinated. This indicates that the piglet has a short growing age and good growth; otherwise, the growth is obstructed. Third, scientific and rational use of full-priced feed. In order to obtain the maximum production efficiency of the three-way hybrid lean hog, the full price of the feed is one of the key technical measures. Farmers can use different proportions of concentrated premix concentrates at various stages of growth based on self-produced agricultural and sideline products. Fourth, save feed costs 1, multi-stage feeding. Divide the entire pig rearing into several stages, and adjust the proportion of protein feeds with higher prices, ie, the concentration of premixes and basic materials, once every 10 days, that is, the proportion of premixes from 20% for every 10 days. Percentage points, the basic material is increased by 1 percentage point every 10 days. 2. Feed dry feed. Many nutrients in feed, especially vitamins, are easily destroyed and inactivated at high temperatures, so they should be fed raw (except beans). Some nutrients will be lost in the water and some chemical changes will occur. Therefore, we must vigorously promote the dry feed technology for raw feeding. 3, limit feeding. Restricted feeding can increase feed utilization and lean meat percentage. In general, the weight of the pig should not be limited before 60 kg, and if it is restricted, it will affect the daily gain. Restricted feeding after 60 kg can save the feed, reduce fat deposition and increase the lean meat ratio. The standard of feed restriction is generally 80%-85% of full food intake. 4, timely slaughter. The longer the pigs are reared or the larger the body weight, the more fat is deposited, and the thicker the pigskin is, the lower the lean meat percentage will be. Three-way hybrid lean pigs generally weigh 70-90 kilograms. Fifth, do a good job of raising the ecological environment and reduce stress responses. Sanyuan pigs have a stronger stress response to the environment. Therefore, the pig houses must be kept cool in winter and cool in summer, ventilation, and density.