New approaches to improving the reproductive function of females dogs

The aim of the work was to establish the effectiveness of the application of a complex reproductive protocol to improve the reproductive capacity of females. The essence of the protocol consists in a combination of monitoring and treatment and preventive measures, which are carried out from the moment of planning the pregnancy of the females dogs until birth and the first weeks after birth, which are combined into a complex reproductive protocol. The protocol includes three stages (preparation for pregnancy; management of the reproductive females dogs during pregnancy; postpartum period). The experiment was conducted on 25 bull terrier female (Canis familiaris) of different ages. The effectiveness of the application of a complex reproductive protocol in the breeding of bull terrier female was experimentally established which is characterized by an increase in the efficiency of insemination, the weight of the nest and the viability of the puppies. In particular, the efficiency of fertilization of female was 92 % (against 72 % in the control group). Using a complex reproductive protocol, the viability of the resulting puppies was slightly higher than that of the female of the research group. In particular, 84.7 % of puppies obtained in the group following the Protocol had high indicators of viability (APGAR – 7–10 points), which is 6.9 % more than the indicators in the control group of animals. Also, in the experimental group, 9.3 % of animals had average APGAR scores (4–6 points), and only 5.9 % of puppies had a low degree of viability (APGAR – 0–3 points). Regarding multifertility, in the control group of female, most female (33.3 %) had 5 pups each, while 22.1 % had 6–7 pups in the nest, 27.8 % of animals had 2–3 pups each. In addition, one females had one puppy. The conducted tests of the Protocol established an increase in the fertility of females. Thus, 62.5 % of the female of the experimental group had from 5 to 7 puppies, which is 6.9 % more than the indicators of the female of the control group. In addition, only one female from the experimental group had 2 and 3 puppies, respectively, and there was no female with one born puppy. Therefore, the effectiveness of the application of a complex reproductive protocol in the breeding of bull terrier female, which is characterized by an increase in the efficiency of insemination, litter mass and viability of puppies, has been established.