Organic zincIs important for the growth of livestock, organic zinc It is a necessary trace element for the synthesis of steroid hormones such as sex hormones. Therefore, zinc plays a unique and important role in reproduction. Zinc deficiency or excess will have an adverse effect on the reproductive performance of animals. Zinc deficiency will affect the entire reproductive process of sows. Long-term intake of feeds with insufficient zinc in sows can cause ovarian dysplasia, atrophy, miscarriage and even dystocia, and early embryonic death.
Appropriately increasing the dietary zinc content of pregnant sows in the diet can increase the serum albumin level of newborn piglets and sow serum progesterone content and reduce the urea nitrogen content in serum. Adding an appropriate amount of zinc to the feed of pregnant sows shortens the interval from weaning to estrus, significantly improves the farrowing ability of sows (P<0.05), increases the re-estrus rate and conception rate after weaning, and advances the first estrus time of gilts; Body weight increased significantly during the estrus period, and litter performance improved significantly (P<0.05). Currently, in the feed industry, the most widely used inorganic zinc is zinc sulfate. Zinc sulfate exists in ionic form in the body and easily reacts with other nutrients in the feed to form insoluble complexes, causing reduced enzyme activity, imbalance of hormone secretion in the endocrine system and changes in the tissue structure of the reproductive organs, thereby reducing the animal's absorption of zinc. Utilization rate, and zinc sulfate for feed is mainly an industrial by-product. As a feed additive, it may cause unknown toxic and adverse reactions to the body.
organic zinc has the characteristics of high absorption and utilization rate, good stability and extremely low toxicity. Many studies have shown that adding an appropriate amount of organic zinc to the diet can effectively improve the reproductive performance and immunity of sows, thereby improving the sow Pig limb health.
