The Dairy Cows’ Fertility Improvement

Abstract

Modern cattle farming needs to find ways to increase the fertility of dairy cows. That's why we had the goal to study the application of different schemes for stimulating increased fertility in cows. For investigation of the possibility of increasing the fertility of cows, three groups of animals were formed: control and two experimental groups, i.e., The first stimulation scheme included Surfagon (15μg) 1-3h before insemination, Catosal, Gabivit-Se, 10-15min before insemination, and Uteroton. Progesterone (2.5%), Catosal, and Gabivit-Se were injected on the 8th day after insemination. Animals of the second stimulated group received Ovariovit 30-60min before insemination. At the 25-30 th inseminated day, were injected Ovariovit and Liarsin. Experimental results were compared by the data of the control group (without stimulation using). Common diagnostics of the animal's wellness was conducted by clinical and laboratory studies. And the pregnancy was additionally diagnosed by a portable ultrasound scanner AcuVista RS880b and MyLabOneVET with a rectal linear probe. It was found using a complex insemination stimulation scheme aimed at preventing infertility in cows can reduce the service period to 85.60±1.93 days and the insemination index to 1.9±0.25 days. Homeopathic preparations using made it possible to achieve a service-period of 89.50±2.42 days and an insemination index of 2.0±0.27. At the same time, animal hematology study results before and after the experiment in the compare with the Control Group demonstrated the safety of the proposed schemes because of the constant of the main blood parameters. So, the introduction of the proposed stimulation schemes can shorten the service period and raise fecundation that have a great impact on the economic efficiency of the cattle breeding.