The size of posterior gluteal development is not a condition after breeding
2020-02-29 13:08:46
When rearing households purchase pigs, many people use sow's rear hip development as the criteria and criteria for purchasing breeding pigs. In fact, this practice is wrong.
Because the hindquarter development is relatively full of pigs and commercial pigs are different, because the rear buttocks particularly developed pigs, not easy to heat, mating difficulties, prone to difficult labor, often back concave, deformation, high elimination rate. Therefore, breeders cannot select breeding pigs according to the requirements and standards of commodity pigs.
Back-sucking sows usually have poor lactation and piglets have low survival rates (back-thickness and positive lactation are positively correlated).
Many customers are always looking for a “double muscle hip†or “double muscle back†type of pig when purchasing a breeding pig, which is also unwise. Because the concept of "double muscle buttock" and "dual muscle back" is different, from the pig's hindquarters, the muscles on the right and left sides of the buttocks are plump, so it is called "double muscle buttock"; the muscles on both sides of the dorsal midline are seen from the back. Obviously called "double muscle back", these are just a kind of body characteristics of pigs, many lean-type purebred pigs or cross-breed pigs are such a body shape, double-muscular pigs have a 10% lower lactating power than normal-type pigs. It directly affects the weaning weight of piglets. At the same time, the body size is not fixed. Parents do not necessarily exhibit double-muscle traits in their offspring of double-muscle traits. With the development of pig breeding technology, this gene will certainly drift, and it is more a manifestation of heterosis. .
In the production, a large number of farms have adopted the rear gluten development of sows as breeding targets for pig farms in order to grasp the cultivators' psyche, and have developed excessively through breeding techniques. After purchasing these breeding pigs, the breeding households return to their own farms to feed, the feed conditions change, the pig's posterior buttocks become smaller, and the estrus is not suitable for breeding. The elimination rate is generally about 40 to 50%, and many pig farmers are in this respect. There are profound lessons.
Therefore, when farmers purchase pigs, they should not only pay attention to body shape, but also should focus on maternal characteristics. They should pay special attention to the appearance of body related to reproductive performance, such as strong and strong limbs, secondary sexual characteristics, such as teat, genital, body structure. The symmetry, etc., only sows developed particularly good hindquarters are not suitable for breeding. If you choose boars, you should focus on lean meat, carcass quality, thick limbs, growth rate, feed rewards and other traits and body appearance, which is the best measure to increase lean meat percentage and body size in offspring.
Because the hindquarter development is relatively full of pigs and commercial pigs are different, because the rear buttocks particularly developed pigs, not easy to heat, mating difficulties, prone to difficult labor, often back concave, deformation, high elimination rate. Therefore, breeders cannot select breeding pigs according to the requirements and standards of commodity pigs.
Back-sucking sows usually have poor lactation and piglets have low survival rates (back-thickness and positive lactation are positively correlated).
Many customers are always looking for a “double muscle hip†or “double muscle back†type of pig when purchasing a breeding pig, which is also unwise. Because the concept of "double muscle buttock" and "dual muscle back" is different, from the pig's hindquarters, the muscles on the right and left sides of the buttocks are plump, so it is called "double muscle buttock"; the muscles on both sides of the dorsal midline are seen from the back. Obviously called "double muscle back", these are just a kind of body characteristics of pigs, many lean-type purebred pigs or cross-breed pigs are such a body shape, double-muscular pigs have a 10% lower lactating power than normal-type pigs. It directly affects the weaning weight of piglets. At the same time, the body size is not fixed. Parents do not necessarily exhibit double-muscle traits in their offspring of double-muscle traits. With the development of pig breeding technology, this gene will certainly drift, and it is more a manifestation of heterosis. .
In the production, a large number of farms have adopted the rear gluten development of sows as breeding targets for pig farms in order to grasp the cultivators' psyche, and have developed excessively through breeding techniques. After purchasing these breeding pigs, the breeding households return to their own farms to feed, the feed conditions change, the pig's posterior buttocks become smaller, and the estrus is not suitable for breeding. The elimination rate is generally about 40 to 50%, and many pig farmers are in this respect. There are profound lessons.
Therefore, when farmers purchase pigs, they should not only pay attention to body shape, but also should focus on maternal characteristics. They should pay special attention to the appearance of body related to reproductive performance, such as strong and strong limbs, secondary sexual characteristics, such as teat, genital, body structure. The symmetry, etc., only sows developed particularly good hindquarters are not suitable for breeding. If you choose boars, you should focus on lean meat, carcass quality, thick limbs, growth rate, feed rewards and other traits and body appearance, which is the best measure to increase lean meat percentage and body size in offspring.
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