Supplementation of Cr Methionine During Dry Period of Dairy Cows and Its Effect on Some Production and Biochemical Parameters During Early Lactation and on Immunity of Their Offspring

Abstract

This study aimed to investigate the effect of dietary chromium methionine (Cr-Met) supplementation on the production and immunological parameters of dairy cows during the dry and postpartum period and their offspring. Forty-five Holstein transition cows were randomly assigned to experimental groups with control, positive control (levamisole-injected cows), and treatment groups (5 g dietary Cr-Met/day/cow). Production, immunological, and biochemical parameters were analyzed during the dry and postpartum period. Result revealed that in dry cows, monocyte count and serum glucose level significantly (p < 0.05) decrease in Cr-supplemented cows over control. Similarly, after parturition, the numbers of all immune cells (except monocytes) decreased significantly (p < 0.05); however, serum IgG, ALT, AST, glucose levels, and total leucocyte, neutrophil, and leucocyte count were increased significantly (p < 0.05) in Cr-supplemented cows over the control group. Days in milk (DIM) of treatment cows were significantly (p < 0.05) decreased over the control group; however, no significant (p > 0.05) differences were observed on milk production, colostrum, and IgG concentrations. As a conclusion, the supplementation of Cr had positive effects on immune cells of cows after parturition; however, serum biochemical parameters remained unaffected. Also, there were significant differences on the number of total leucocyte and neutrophil, on the activity of ALT at birthday, and on the number of total leucocyte at postpartum for calves.

Effects of chromium yeast supplementation on productive and metabolic responses of laying hens fed diets containing different energy levels

“…(IgG) parameters, and the authors attributed it to the positive effects of Cr on the immune cells of cows after parturition (Gultepe et al, 2018). Thus, the referred studies in birds and dairy cows may help corroborate the hypothesis of the present study, which supports that the lack of expected effects of Cr supplementation on performance parameters is closely linked to good management practices and stress-free animals.…”

Efficacy of dietary supplementation of nanoparticles-chromium, chromium-methionine and zinc-proteinate, on performance of Japanese quail under physiological stress

“…One of the main effects of Cr deficiency is the retardation in growth, as the activities of enzymes involved in protein synthesis become weak (Sahin et al 2005). Therefore, it seems that beneficial effects of Cr are more noticeable under stressful conditions (Gultepe et al 2018). Recently, the positive effects of mineral nano-particles have been demonstrated, indicating that the Nano forms of minerals are more absorbable, bioavailable and effective (Ramiah et al 2019).…”

Effect of Chromium Methionine Supplementation on the Lactation Performance, Hepatic Respiratory Rate and Antioxidative Capacity of Early-Lactating Dairy Cows

“…In the current study, the lower glucose concentrations in the plasma (wk 4, 8, and 12) of cows fed Cr-Met may suggest that more glucose was absorbed by these cows [20]. Other research has shown Cr-Met supplementation to decrease serum glucose [33]. The decrease of insulin concentration in cows fed Cr-Met may be due to the cumulative effect of Cr supplementation.…”