تاثیر اشکال مختلف ویتامین AD3E بر عملکرد رشد، تخمیر، پروتوزوآی شکمبه و فراسنجه‌های خونی بره‌های پرواری به دو روش برون‌تنی و درون‌تنی

The aim of this study was to determine the effects of different forms of vitamin AD3E supplementation on growth performance, rumen fermentation, protozoa population and blood parameters in Mehraban lambs by in vivo and in vitro experiments. This experiment consisted of a 14-d adaptation period and a 60-d experiment. Twenty Mehraban lambs (41.3± 0.5 kg) were divided into four groups with 5 replicates in each group using CRD experiment design. The treatments were 1) control group 2) injectable AD3E vitamin, 3) rumen protected vitamin AD3E as part of concentrate and 4) AD3E vitamin in drinking water. Feed intake and body weight of lambs were recorded weekly during the fattening period.The samples of blood and rumen liquid were collected from the lambs 30 and 60 days of the experiment. The results indicated that the growth performances were not differing with supplementation of AD3E vitamins. The ammonia concentration was higher in groups 3 and 4 (p<0.05). Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.
Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.
Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.
Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.
Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.
Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.
Gas production and protozoa population reduced due to vitamin AD3E supplementation (p<0.05). The urea serum concentration was lower in groups 2 and 3 compare with others (p= 0.008). Injectable and water drinking AD3E vitamin supplementation made a significant increase in cholesterol concentration (p=0.002). Blood concentration of triglyceride showed a significant increase in group4 (p=0.007). The result showed that vitamin AD3E had no significant effects on growth performance, average daily gain and feed conversion ratio. Higher dosage of vitamins with more lambs and longer period of time is recommended.