Advances in Animal and Veterinary Sciences January 2024 | Volume 12 | Issue 1 | Page 107 INTRODUCTION G oats are classified as ruminant livestock with the main feed being forage such as grass, legumes, and leaves from tree species, in addition to concentrate as additional feed. Forage is used as a source of energy and the main source of protein for ruminants. During the harvest season, elephant grass and corn straw availability are high enough to be used as ruminant feed and processed into silage. Elephant grass is easy to obtain and has high availability. Corn straw is one of the agricultural wastes that has the potential to be used as a source of forage. e limitation of corn straw is low in quality because it contains high crude fiber with low protein content. e high availability of elephant grass can be made into silage which increases the availability of feed. Efforts to improve the quality of corn straw and the use of elephant grass are through the ensiling process so that its quality can be increased as the main source of fiber for ruminant livestock. e nutritional content of Pennisetum purpureum consists of dry matter 20,49%; ash 12,76%; crude protein 11,23%; Research Article Abstract | e ensilage process is an effort to improve the quality of corn straw and use elephant grass as the main source of fiber for ruminants. e research aimed to obtain a ration formulation through the use of elephant grass silage, corn straw silage, and concentrate for etawa crossbreed goats. e experiment used a randomized block design (RBD) with four treatments and each treatment was repeated four times, so there were 16 experimental units. e four treatments were: A = silage with 0% corn straw silage + 60% elephant grass silage + 40% concentrate; B = 20% corn straw silage + 40% elephant grass silage + 40% concentrate; C = 40% corn straw silage + 20% elephant grass silage + 40% concentrate; D = 60% corn straw silage + 0% elephant grass silage + 40% concentrate. e variables observed were body weight, feed consumption, nutrient consumption, and nutrient digestibility. e results showed that body weight and feed consumption showed no significant differences between all treatments and tended to be the highest in treatment C. Dry matter and crude protein digestibility of treatment A was the lowest but the highest on nitrogen- free extract (NFE) compared to treatments B, C, and D. e crude fiber digestibility was highest in treatment C and significantly different compared to treatment A, B, and D. e nutrient consumption, digestibility of organic matter, crude fat, and total digestible nutrient (TDN) showed no significant differences in all treatments and tended to be the highest on the treatment C. It can be concluded that giving silage with 40% corn straw + 20% elephant grass silage + 40% concentrate produced the highest body weight and the best nutrient digestibility. Keywords | Elephant grass silage, Concentrate, Corn straw silage, Digestibility, Etawa crossbreed goat, Performance ANAK AGUNG AYU SRI TRISNADEWI*, I GUSTI LANANG OKA CAKRA Providing Ration of Corn Straw Silage and Elephant Grass Silage on the Performance of Etawa Crossbreed Goats Received | October 07, 2023; Accepted | November 11, 2023; Published | January 08, 2024 *Correspondence | Anak Agung Ayu Sri Trisnadewi, Faculty of Animal Husbandry, Udayana University, Denpasar, Bali, Indonesia; Email: aaas_trisnadewi@ unud.ac.id Citation | Trisnadewi AAAS, Cakra IGLO (2024). Providing ration of corn straw silage and elephant grass silage on the performance of Etawa crossbreed goats. Adv. Anim. Vet. Sci., 12(1):107-112. DOI | https://dx.doi.org/10.17582/journal.aavs/2024/12.1.107.112 ISSN (Online) | 2307-8316 Copyright: 2024 by the authors. Licensee ResearchersLinks Ltd, England, UK. is article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY ) license (https://creativecommons. org/licenses/by/4.0/). Faculty of Animal Husbandry, Udayana University, Denpasar, Bali, Indonesia.