1. Hybrid pigs cannot be used as breeding pigs.
This is because although the hybrid pig is large, good in constitution and fast in growth, its genetic performance is extremely unstable. For breeding pigs, the offspring will have serious trait separation, such as reduced feed reward, slower growth rate, and disease resistance. Reduced ability, etc. Therefore, hybrid pigs cannot be used for breeding pigs.
Second, the pellet feed is fed with water.
In the practice of breeding, some pig farmers like to mix the pellets with water to form porridge to feed the pigs. This is unscientific. Because the nutrients of the pellets are mixed with water, their nutrients will be seriously damaged, and their nutritional value will be greatly reduced. The correct way is to drink the water before feeding the dry material.
Third, the pigs eat and sleep, the instructions are good.
Pigs have a certain habit of living, that is, eating, activities, and rest. Especially for pigs under 40 kg, there must be some play around noon every day. Eating and sleeping may be the addition of a tranquilizer (such as chlorpromazine) to the feed. After eating the feed, the pig destroys its normal physiological function and the pig sleeps due to anesthesia. At the same time, the sedatives have the effect of lowering blood pressure, lowering body temperature and reducing the number of heartbeats on the pig body, affecting the normal metabolism of the pigs, and the sedative drugs have residues in the pigs, which is extremely unfavorable to the health of the consumers.
Fourth, the feed taste is good and the quality is good.
Some pig farmers tend to assess the quality of the feed by the size of the feed odor. This is not the case. For example, if there is an additive called *** in the current market, it will appear to be very strong in the feed, reminding pig farmers to pay attention to this and prevent them from being deceived.
5. The blackness of the pig manure indicates that the feed quality is good.
To assess the quality of the feed depends on the level of feed conversion. The normal color of the stool is determined by the composition of the feed and the digestion and absorption capacity of the pig. Some pig farmers think that the feed of black manure in piglets is good, and the feed of yellow manure is not good. This is not right. It is precisely because people have such misunderstandings that some feed manufacturers have added substances that have no effect on the growth and development of pigs, such as copper sulphate, in order to cater to the wrong attitude of pig farmers, which makes the feces black, thus increasing the feed. The cost, the feed price is greatly increased, and the economic burden of the pig farmers is increased, but there is no obvious growth promoting effect on the growth and development of the pigs.
Sixth, the pig's skin is red and bright, indicating that the feed is good.
Some pig farmers think that the pig's skin is red and the feed is good. The color of the pig 's skin and the brightness of the fur are determined by the amount of nutrients in the feed, mainly protein, fat and vitamins. Some feed manufacturers increase the content of selenium and copper in the feed, which makes the skin of the pig red, but the pork contains a lot of selenium and copper. Eating such pork will cause serious harm to the human body.
Seven, pig biting tail is not complete.
Under normal circumstances, if the pig does not get the necessary nutrients for a long time, there will be pica, such as salt, protein, or the lack of certain vitamins and trace elements. However, the feed produced by regular manufacturers will not be seriously deficient, and there will be no foreign food. The reasons for pig tail biting are: the density of the pigs is too large, the pig house environment is bad, the light intensity is high, and some nutrients are lacking. The biting pigs are mostly between 10 and 40 kilograms of body weight, and pig tails weighing about 20 kilograms are particularly serious. Feeding piglets or pigs weighing more than 40 kilograms rarely occur. The pig with a weight of 10-40 kg is the only weapon in the period of fun and play. The only attack weapon of the pig is the mouth. At the beginning, the tail bite is for playing. When biting the blood, it becomes the hobby of the pigs in the same column. Pigs that bleed to the tail are out of curiosity, squatting or arching, which is one of the important reasons for tail biting. In this case, the injured pig should be isolated and the piglet should be broken.
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