Livestock feed provider Rumenco has mentioned that beef and dairy producers that prioritise macro and micronutrients within the weeks main as much as calving will profit in each the calving and post-calving interval.
Nutritionist for the corporate, Dr. Alison Bond, mentioned minerals like iodine, copper, selenium and magnesium are important for regular physiological functioning and are required in elevated quantities for optimum development, immunity and fertility.
Bond mentioned the pre-calving interval may be thought of to be essentially the most vital in a cow’s manufacturing cycle, and highlighted the significance of the inclusion for the 4 vitamins within the weight loss program.
“Nutrient necessities are excessive within the run-up to calving, with most herds requiring supplementation of important macro and micronutrients,” she mentioned.
Cows want the “key efficiency minerals” at good ranges to optimise each cow and calf efficiency, she mentioned.
Bond mentioned magnesium is required for all metabolic pathways together with muscle contraction, nerve signalling and bone formation.
Magnesium, she mentioned, is a very powerful macromineral for pre-calving cows and heifers.
“Supplementation for each spring and autumn calvers is important due to the low ranges of magnesium within the grass throughout these instances, whereas additionally supporting muscle contraction for the calving course of,” she mentioned.
Moreover, Bond mentioned, cattle don’t retailer magnesium effectively within the physique and due to this fact they should be equipped with supplementation every day.
Selenium is transferred readily throughout the placenta and feeding good ranges to the cow on the strategy to calving will make sure the calf has good ranges at delivery, Bond mentioned.
Selenium performs an vital function in triggering the breakdown of brown adipose tissue within the new child calf due to this fact supporting calf vigour, guaranteeing they stand and suckle rapidly and serving to to stop hypothermia.
By way of its function as an antioxidant, Bond mentioned, selenium is vital for the immune response serving to to cut back irritation and improve immunity.
“Selenium and vitamin E work in conjunction as pure antioxidants, defending tissues from oxidative stress and the breakdown of cell membranes,” she mentioned.
“The antioxidant actions of selenium and vitamin E are vital for the immune response, significantly white blood cell operate, and due to this fact assist to cut back irritation and preserve illness resistance all through the periparturient interval.”
To synthesise thyroid hormones for management of vitality metabolism and metabolic price, pre-calving cows require iodine Bon mentioned.
It’s particularly vital for cattle consuming brassicas and legumes, she mentioned. Compounds in these forages block utilisation of dietary iodine, requiring greater ranges of supplementation.
“No matter weight loss program, all pre-calving cattle require iodine supplementation since it’s not saved within the physique,” she mentioned.
“Due to this fact, a steady provide from the weight loss program is required for the conventional manufacturing of the thyroid hormones.”
“Particularly within the ultimate three weeks earlier than calving, we see copper necessities improve considerably,” Bond mentioned.
“This hint ingredient is important for a number of completely different enzyme techniques within the physique together with these concerned in vitality metabolism, connective tissue growth and antioxidant techniques.”
Copper can also be a significant contributor to the event of uterine tissue, she mentioned, with deficiency resulting in a delay return to oestrus and scale back conception charges, subsequently extending the calving interval and lowering herd profitability.