A kind of nursery material without zinc oxide

Abstract

The invention discloses a zinc oxide-free nursery feed, which comprises a basic feed component and a core additive component, and the mass ratio of the basic feed component to the core additive component is (97.5-99):(1- 2.5); the basic feed group includes the following components by weight: corn 20-40, puffed corn 10-20, puffed wheat 10-15, soybean oil 1-2, puffed soybean 8-10, fermented soybean meal 3-6, Soybean meal 6‑10, steam fish meal 2‑4, low protein whey powder 2‑4, amino acid 0.8‑1.5, suckling pig’s acid 0.3‑0.8, montmorillonite 0.3‑0.8, calcium hydrogen phosphate 0.3‑0.4, stone powder 0.2‑0.5 , salt 0.3-0.5; the core added components include the following components by weight: organic mineral premix 0.15-0.25, anti-diarrhea functional package 0.4-0.6, nursery pig compound premix 0.8-1.2. From the results of multiple tests, it is completely possible to achieve the same anti-diarrhea effect and growth-promoting effect as the addition of 2.5 kg / ton of zinc oxide without using zinc oxide.

Description

technical field [0001] The invention belongs to the technical field of pig feed, and specifically discloses a zinc oxide-free nursery feed. Background technique [0002] Zinc oxide is currently one of the most efficient additives for controlling diarrhea and promoting growth in nursery pig feed formulas, and this technology is used in more than 95% of commercial nursery feeds. In the intestinal tract, zinc oxide can protect the integrity of the intestinal epithelial structure, reduce the adhesion and invasion of intestinal pathogenic bacteria to the intestinal epithelium, and at the same time effectively regulate the intestinal flora structure, thereby maintaining intestinal health. However, high zinc also brings a lot of troubles to pig breeding: long-term use of high zinc will cause growth inhibition in the later stage of pigs, decreased feed intake, rough and curly coat, and pale skin; Pathogenic bacteria are easier to colonize and multiply in the intestine than benefici...

AI Technical Summary

Problems solved by technology

However, high zinc also brings a lot of troubles to pig breeding: long-term use of high zinc will cause growth inhibition in the later stage of pigs, decreased feed intake, thick and curly coat, and pale skin; Pathogenic bacteria are easier to colonize and multiply in the intestine than beneficial bacteria, which often lead to intestinal flora disorder and induce diarrhea; high zinc antagonizes the body's absorption of copper and iron and interferes with the absorption and utilization of other nutrients, resulting in secondary development of copper and iron. Anemia occurs due to sexual deficiency; most of the zinc in animal feces comes from unabsorbed exogenous zinc in the diet, and more than 90% of zinc is discharged into the environment through feces, resulting in waste of zinc sources and environmental pollution. A dose of fecal zinc is excreted into the environment, which on the one hand causes environmental pollution, and on the other hand, it will also be enriched in crops, thereby causing harm to the human body

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