Electronic copy available at: https://ssrn.com/abstract=3202922 Available online at https://www.ssrn.com/ The 3 rd International Conference of Integrated Intellectual Community Hanover, 28 th - 29 th April 2018 * Corresponding author. Tel.: +62-819-1544-3151. E-mail address: muhammad.khoerul.f@mail.ugm.ac.id (Muhammad Khoerul Fadhli) Milk Production in the First Lactation and its Correlation with Mammary Gland Size of Etawah Grade Goat in BBPTU-HPT Baturraden, Indonesia Muhammad Khoerul Fadhli a , Saepul a , Risma Rizkia Nurdianti b a University of Gadjah Mada, Sleman, Indonesia b Institute of Animal Nutrition and Rangeland Management in the Tropics and Subtropics, University of Hohenheim, Stuttgart, Germany Abstract This study was conducted to determine relationship of the mammary glands size with milk production during the first lactation of Etawah Crossbreed/ Peranakan Etawah (PE) goats at the Balai Besar Pembibitan Ternak Unggul Hijauan Pakan Ternak (BBPTU-HPT) Baturraden, Indonesia. The study used 41 first lactating PE goats. Variables in this study were taken by observation and measured of mammary glands. Data during the study which were taken included length, width, and circumference of udder, length, circumference, and distance between of teat, length and index of the mammary gland. Mammary gland index was calculated from the ratio between the length and circumference of the udder. Milk production was measured and recorded since the first day of lactation until day 91 th . Data size of the mammary gland calculated the average and standard deviation. The data is then statistically analyzed regression. The results showed that milk production had a positive correlation with the circumference and length of the udder. Udder circumference correlation value to the milk production of 30.2%, while the length of the udder to the milk production of 22.3%. It was concluded that the production of goat's milk in the first lactation Etawah grade goat in BBPTU-HPT Baturraden correlated with the length and circumference of the udders but little correlation value. © 2018 ICONIC Keywords: Mammary gland, Milk production, Etawah goats. 1. Intorduction According BPS (2016) goats as one of the mammals that can produce milk, in Indonesia the population is quite high at 18,639,532 (2014), 19,012,794 (2015) and 19,608,181 (2016). The population of goats is increasing every year so there is great potential to make goats as milk producers, because it is estimated that more animals can be milked. In Indonesia, goats are kept as an important component of farming activities, particularly by smallholders. Nearly ninety-nine percent of small ruminants such as goat and sheep are found the hand of smallholder which indicates an important role for smallholders (Sodiq, 2003). Small ruminant’s production plays an important role as an income generating activity, particularly for the smallholders, whilst being a source of animal protein to support the national program (Soedjana, 1993). Electronic copy available at: https://ssrn.com/abstract=3202922