Slaughter Rate of Productive Female Goats and Potential Utilization of Reproductive Organ Waste for Research on Reproduction and Conservation of Genetic Material

¹ Faculty of Animal Sciences, Universitas Brawijaya, Malang 65145, Indonesia
² Faculty of Animal Sciences, Universitas Islam Malang, Malang, 65144, Indonesia
³ Faculty of Mathematics and Natural Science, Universitas Bengkulu, Bengkulu, 38119, Indonesia

^* Corresponding author: ciptadi@ub.ac.id

Abstract

This study aims to determine the potential for utilizing the waste reproductive organs of productive female goats slaughtered at Malang Goat slaughterhouses. The method used is a case study. The study was conducted at the Malang City Slaughterhouse. Result showed that the slaughter rate of male goats reached about 15 %, and that of females reached 85%. The slaughter rate of goat aged less than 1 year is 28.91%. While the livestock puberty rate with an age range of 1 - 1.5 years is about 23%, 1.5 - 2.5 years old is 13%, 2.5 - 3.5 years old is 14 % and 3.5 - 4 years old is 21%. All oocytes obtained from 3 age groups were selected, and only oocytes with the best grade quality were cultured in IVM to determine the level of in vitro maturation. Ovarian reproductive organ waste has the potential to provide oocytes that can be used for research and conservation of genetic material by freezing cells in liquid nitrogen (LN₂). Pre pubertal ovaries are not feasible for oocyte maturation culture, while pubertal ovaries can isolate oocytes for in vitro culture and frozen storage for conservation. The conclusion is that female goat slaughter at Malang slaughterhouse is dominated by female goats, reaching about 85%. The highest goat slaughter rate aged less than 1 year reached 28. %. It is suggested that the number of slaughtered animals be reduced, and further research is needed on the level of productive slaughtered animals. The potential utilization of slaughterhouse waste for goats and sheep can be done through in vitro growth (IVG), in vitro Maturation (IVM) or freezing of isolated oocytes (aspiration or slicing) of the ovaries and can then be used for reproductive research in the laboratory or for conservation.