جستجوی مقالات مرتبط با کلیدواژه "مکمل آلی" در نشریات گروه "علوم دام"

The objective of this study was to evaluate the effect of supplementing glycinate form of zinc, copper, iron and manganese on growth performance and some blood biochemical parameters of suckling calves. A total of 20 one-day-old Holstein calves were randomly divided into two equal groups. Until weaning on day 63, the control group received milk and basal starter diet containing whey protein as a carrier while the treatment group received milk containing 6, 1.5, 15, and 6 ppm of zinc, copper, iron and manganese respectively, together with basal starter diet containing 40, 10, 100, and 40 ppm of zinc, copper, iron and manganese respectively. To assess the growth performance, feed intake was measured daily, and calves were weighed weekly. Blood samples were collected on days 0, 21, 42 and 63. Supplementation with glycinate trace elements significantly increased serum albumin, glucose, and high-density lipoprotein and decreased low-density lipoprotein concentrations in suckling calves compared to the control group. Carpus lengths was increased in calves treated with organic trace elements compared to the control group (P<0.05). Also, serum concentration of zinc tended to be higher in calves received glycinate trace mineral supplement (P=0.05). However, supplementation of organic trace minerals had no significant effect on growth performance and concentration of alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase and lactate dehydrogenase in serum. The results of this study showed that supplementing the diet of calves with glycinate trace minerals improved inflammation-related parameters such as albumin, low- and high-density lipoproteins, and energy metabolism-related parameters such as serum glucose. However, supplementation of glycinate trace minerals did not have a significant effect on the growth performance of suckling calves.