Compound feed for Tianfu pork pig replacement gilt at perinatal stage and preparation method

Abstract

The invention discloses compound feed for Tianfu pork pig replacement gilt at a perinatal stage and a preparation method. According to a nutritional demand quantity standard and an amino acid balancetheory for the Tianfu pork pig replacement gilt at the perinatal stage, by considering the unique physiological characteristics of the replacement gilt at the perinatal stage, various organic trace elements, vitamins, amino acids and functional substances are applied to the replacement gilt at the perinatal stage, and the content of the vitamins related to the proliferation can be improved; and oligosaccharins for improving the immunity, soy isoflavone and butyrin for improving the milking capacity as well as chromium yeast for alleviating the stress are added. By adopting the compound feed disclosed by the invention, the body development of the replacement gilt can be promoted, the delivery time of the replacement gilt can be shortened, the primary delivery stress of the replacement giltcan be reduced, the food intake of the replacement gilt at the early stage of the lactation period can be increased, and the litter weight gain of the replacement gilt at the lactation period can be increased; and the disease resistance of the replacement gilt at the perinatal stage can be improved, so that the service life of the replacement gilt can be prolonged, and the elimination rate of thereplacement gilt can be reduced. The compound feed is not only convenient to prepare and use, but also low in cost, and has general applicability.

Description

technical field [0001] The invention relates to the field of pig breeding, in particular to a compound feed for Tianfu pork gilts during the perinatal period and a preparation method thereof. Background technique [0002] The Tianfu pork pig matching system uses the resources of three foreign breeds of Duroc, Changbai, and Yorkshire pigs and Meishan pigs. It is jointly cultivated by Sichuan Tieqi Lishi Animal Husbandry Technology Co., Ltd., Sichuan Agricultural University, and Sichuan Provincial Animal Husbandry General Station. After nearly 20 years of development The high-quality lean-meat pig matching line suitable for growth in Southwest China formed by continuous research and multi-generation breeding is the first new breed of pig breeding that has passed the examination and approval of new livestock and poultry matching lines since the founding of the People's Republic of China. During the fattening period, the average daily gain is more than 850 grams, the intramuscul...

AI Technical Summary

Problems solved by technology

As a result, the sows enter the second breeding cycle in poor body condition, which leads to a small second litter and stunted piglets

Gilts with low body fat stores will quickly deplete their stored body fat during the reproductive cycle, resulting in reduced reproductive performance and culling, or even complete loss of reproductive performance by the third or fourth farrowing

However, the gilts selected for breeding now have the characteristics of thin backfat and fast growth. Therefore, it is difficult to ensure the fat reserves required for breeding of gilts. It is necessary to improve the nutritional level of feed for gilts. Cannot use the same diet as sows

[0005] However, the research direction on sows at home and abroad is concentrated on the lactation period, gestation period, and empty conception period of sows, and there are few studies on sows' perinatal period, especially the feed nutritional requirements of gilts during perinatal period. , while there is almost no research on the perinatal period of Tianfu gilts

This leads to phenomena such as high primiparous stress, low feed intake, and poor disease resistance in the gilts during the peripartum period of Tianfu pork pigs. The service life of gilts is short and the culling rate is high.

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