1.Organic zinc affects animal growth performance
Research has found that adding amino acid complex zinc can significantly increase the daily weight gain and feed intake of weaned piglets. It is appropriate to add Zn-Met at 80 mg/kg, and the effect will not be significant when added below this amount (40 mg/kg); Zn-Met and asanic acid have a synergistic effect, and their combined application can increase the daily weight gain and feed intake of pigs. Other studies have shown that when the total zinc is 100 mg/kg, the organic zinc content accounts for 40% of the total zinc is optimal.
Zn-Met improves nitrogen deposition in sheep, and its bioavailability is 6.8% higher than that of ZnO. -Met can promote wool growth, improve daily weight gain and immunity of sheep. Zn-Met can improve the performance digestibility of poultry feed, improve eggshell quality, improve immunity, reduce skin tears, increase breast meat production, and promote feather growth.
2. Organic zinc improves animal carcass quality
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Greene (1998) on the effects of Zn-Met on ruminant carcasses Seven trials were conducted on the impact of quality, and three trials reported that the carcass quality grade, marbling score, and fat content around the kidneys, pelvis, and heart of cows and steers in the Zn-Met-added group were higher than those in the Zn-Met-added group. ZnO group. Harganto (1994) found that the addition of Zn-Met reduced the fat content of psoas muscle and increased the carcass lean meat rate.
3. Organic zinc plays an important role in stress, immunity and Effect of disease resistance
Zn-Met on slowing down Cattle transportation stress and laying hen low calcium (0.3%) stress have significant effects. In a test comparing the effects of Zn-Met on animal immune function, Nockels (1991) found 4 reports that Zn-Met could improve the immunity of chicks, weaned piglets and sheep compared with the same amount of ZnO. It was also reported that the control group’s diet contained 26 mg/kg of organic zinc, and 25 mg/kg of Zn-Met was added to this, and the incidence rate during the 28-day study period was very low.
Measurement of antibodies in blood on days 0 and 14 Titer is a measurement result of the immune response to herpes virus-1 (BHV-1) and parainfluenza 3 (PI-3) vaccination. The antibody titer of BHV-1 14 days after vaccination in the Zn-Met group was higher than that in the control group and ZnO group. Improvements of 47% and 31% respectively. When calves were fed a control diet and Zn-Met was added to the control diet to a level of 360 mg organic zinc/head/day, the weight gain of calves in the Zn-Met supply group increased by 10.7% (0.704 and 0.636 kg /day), the incidence rate was reduced (46:31%), and the amount of drug treatment was reduced by 5.8% (2.12:2.25).
