Gynecological System Score (GSS) nella valutazione dell'apparato riproduttore della bovina da latte

The purpose of the Author in this paper has been to propose a new method of evaluation of the dairy cow genital system. The evaluation is performed through a transrectal gynecological and echographic examination and is called †œGynecologial Score System†� (GSS). The new method takes in consideration the ovaries, the uterine horns, the uterine body, the cervix and the combination vulvo-vagina. For each of these structure we gave a score from 0 to 5 and the mean was considered the morfo-functional score of the whole genital apparatus. We considered 3359 open cows of different age and randomly taken from different groups depending on the reproductive status, the milk production and the food composition and intake. We divided the animal in two groups respectively of 2141 and 1218 . For each group we considered the time from parturition, the BCS, the GSS the mean number of AI per pregnancy and the pregnancy rate. The results have shown that the first group the BCS was 2.9, the GSS 2.9 and the mean AI and pregnancy rate were respectively 2.2 and 84.7. For the second group BCS was 2.3, GSS 2.1 and the mean A.I. and pregnancy rate 3.2 and 70.44% respectively. The results have clearly shown that GSS is a very important and useful method to evaluate the genital system of the dairy cow and that there is a correlation between the GSS and reproductive efficiency. Furthermore GSS has the potential to become a tool to plan all the reproductive activities of the farms.