ABSTRACT
Reproductive status of 317 cows slaughtered at the Bamenda Municipal Slaughterhouse were assessed in order to highlight potential losses resulting from the slaughtering of fertile cows. The cows were inspected to determine their ages, their reproductive status and detect possible causes of infertility from the reproductive pathologies observed in the reproductive tract. Data were collected from April to ending July 2020 and analyzed using SPSS version 23.0. Of a sample of 1,979 animals slaughtered, 317 (16.02) were cows. About 91.79% of the cows slaughtered were below 9 years of age. Pregnant cows slaughtered showed the highest prevalence (63.50%) of the reproductive states, 26.66% were normal cycling cows, 7.36% were lactating and 2.45% of the cows showed signs of heat. The common reproductive pathologies observed were ovarian cysts (92.85%), metritis (3.57%) and pyometra (3.57%). An estimated net income of 100 964 US $ was found to be lost within a period of three months in a single abattoir due to the slaughter of pregnant cows. The high percentages of pregnant cows, under aged cows and fertile cows slaughtered at Bamenda city Abattoir within the study period caused high economic losses. This is due to the fact that, laws prohibiting the slaughter of such category of cows are not respected and hence the need for the government to reinforce her policies of ante mortem inspection by checking for physiological status in all cows before slaughtering in all national abattoirs to minimize economic losses. Cattle farmers, traders and butchers should be enlightened on the consequences of slaughtering pregnant and under age animals.

ABSTRACT
Physiologically the female bovine is considered non-seasonal polyestric. The beginning of the estrous cycle occurs when the female enters puberty, however, the age at which estrus begins is variable. There are specific protocols for inducing puberty in super precocious heifers that favor reproductive efficiency in the herd, increasing estrus and conception rates. Therefore, the aim of this study was to evaluate puberty induction and fixed-time artificial insemination in super precocious heifers from a farm in southern Bahia. For this, 334 F1 heifers, crossing Aberdeen Angus with Nellore had puberty induced by the administration of injectable progesterone, reproductive vaccine CattleMaster Gold® and Fosfosal® and after twelve days, estradiol cypionate was administered. Finally, artificial insemination for a fixed time is performed. It was observed that the conception rate of the animals that participated in the experiment carried out was 69,76% of initial pregnancy in their first pregnancy diagnosis, while in the second evaluation the result was 67,06% of pregnant animals, consisting of a loss embryonic 2,7%. Thus, a satisfactory result of the association between puberty induction and fixed-time artificial insemination was observed. Further studies comparing this protocol with the conventional technique are needed to verify the best approach.