Reproductive ability of sows under action of iodine citrate of nanotechnological origin

Abstract

The purpose. To find out influence of different quantities of iodine in the form of aqua-citrate on reproductive ability and milking ability of sows and their productive qualities. Methods. By a principle of analogues, in view of age (160–170 days) and weight of a body (95–100 kg) they formed 3 groups of repair pigs. Animals of control group received standard mineral premix (MP) which structure included iodine in the form of salt of potassium iodide. Pigs of test groups were fed with premixes without inorganic form of iodine. However, in a diet, according to the scheme of experiment, they added a water solution of aqua-citrate iodine in the quantities making 100 and 50% of the content of an element in MP. Results. It is established that colostrum and milk of sows differ under the content of general lipids. However at addition of iodine citrate of nanotechnological origin in diets of animal of test groups the concentration of general lipids both in colostrum and milk did not change essentially. At sows fed with forage with iodine in form of aqua-citrate in quantity twice smaller, than its content in standard mineral premix, in colostrum they fixed increase of phospholipids on 18,4% (P<0,01) and free cholesterol — on 14,2 % (P <0,05), and also in milk — content of mono- and diacylglycerols on 16,6% (P<0,01) in comparison with parameters of analogues of control group. Alongside with that they observed growth of milk ability of sows on 28,7%, birth rate of piglets — on 10,2%, weight of piglets — on 8,5% (as compared to control group). At addition in a diet of iodine (0,38 mg/kg) in the form of aqua-citrate, equivalent to its content in inorganic form, they fixed decrease of multiplicity at sows, drop in survival of piglets and daily average buildup. That characterizes such doze as irrational and undesirable. Conclusions. Aqua-citrate iodine, being the highly active and bioaccessible form, provides stimulating influence on reproductive ability of sows in the quantities making 50% of a dose of iodine in the molecular form.