Effects of mineral supplementation on reproductive performance of pregnant cross‐breed Bonsmara cows: An experimental study

Abstract

Minerals in animal feed occur in variable structures, most of which determine the uptake and usage in biological processes in the body. Effective chemical breakdown of minerals may ensure efficient utilization in metabolism. The aim this study was to evaluate the effects of mineral supplementation on reproduction in cows. A farm was selected for the experiment due to the fact that it previously experienced different reproductive conditions in the farm. The farm comprises cross‐breed cows with Bonsmara dominating in the farm. Twelve pregnant primiparous and multiparous cows of different ages, parity and weight, that had previously experienced reproductive conditions, were randomly selected for this study. The cows were then randomly sub‐divided into two groups (experimental and control group) of six. The experimental group was injected with MULTIMIN™ + Se + Cu at a dosage of 1 ml/45 kg BW and Calci 50 p.i. at a dosage of 100–150 ml/500 kg BW at an interval of 6 weeks (from June to October 2017). Blood samples were collected before every injection date. The t test was used to relate the mean weight gain and serum metabolite between the experimental and control groups. The body weight gain was significantly higher in the experimental group compared to the non‐supplemented group. Supplemented cows had significantly (p < .05) high levels of triglycerides and creatinine kinase. A case of retained placenta and dystocia among non‐supplemented cows were noted. Thus, mineral supplementation can be used to improve productivity and reproductive well‐being.

Effect of group feeding and individual feeding on the post thaw semen quality in breeding Buck

“…The animal diet also affects the quantality of antioxidant in the seminal plasma that regulates the ROS level in ejaculated and frozen thaw semen responsible for protecting the sperm against cryoinjuries. Different research has shown the importance of mineral supplementation on health (Singh et al, 2019) [11] and reproductive performance of breeding animals (Molefe and Mwanza, 2020) [12] . During the experiment the animal maintained individually in the pan feeding were free to feed on the balanced ration offered to them while in the group feeding with common manger the animal might not have taken up the balance diet in accordance with the requirement of breeding buck.…”

Organic selenium supplementation increases serum selenium levels in healthy Xinjiang brown cattle fed selenised yeast

“…Although cattle in group B had a significantly higher serum uric acid level, serum BUN level was not the highest. Although information on renal function indices of cattle supplemented with selenised yeast is limited, an earlier study showed that pregnant cows treated with a mineral mixture containing Se (5 mg/ml of sodium selenite), copper, zinc, manganese, calcium, magnesium, and phosphorus did not exhibit significant changes in the levels of serum urea/ BUN, uric acid, and transaminases (ALT, AST, and GGT) compared to untreated cows (Molefe and Mwanza, 2020). Therefore, these indices reflect a better health status of Xinjiang brown cattle fed different concentrations of selenised yeast.…”

Blood Biochemical Profiles and Pregnancy Rate of Brahman Crossbred Cows Supplemented with Mineral Mixture

“…Serum protein is part of the collection of amino acids in the body and indicates the nutritional status of livestock (Xuan et al, 2018). Molefe and Mwanza (2020) showed no difference in total blood protein by giving several doses of mineral. Khalil et al (2019b) mentioned that mineral supplementation on Simmental cows using the different forms (meal and block) did not affect blood protein.…”