Effect of different protein and energy levels in concentrate diets on nutrient intake and milk yield of Saanen x Etawah Grade goats

Abstract

ABSTRAKSupriyati, Krisnan R, Budiarsana IGM, Praharani L. 2016. Pengaruh dari perbedaan tingkatan protein dan energi pakan konsentrat terhadap asupan nutrisi dan produksi susu pada kambing Saanen x Etawah silangan. JITV 21(2): 88-95. DOI: http://dx.doi.org/10. 14334/jitv.v21i2.1356 Kambing perah turut berkontribusi pada ketahanan pangan dan nutrisi. Akan tetapi, informasi terkait konsumsi nutrisi dan produksi susu (termasuk komposisinya) kambing persilangan Saanen x Etawah (SAPERA) masih terbatas. Penelitian ini bertujuan untuk mengevaluasi asupan nutrisi, produksi susu dan komposisi kandungan nutrisi kambing SAPERA yang sedang menyusui yang diberi pakan dengan tingkat energi dan protein konsentrat yang berbeda. Tiga puluh kambing SAPERA multipara dianalisis menggunakan rancangan acak kelompok dengan tiga perlakuan (R1, R2, dan R3) dan 10 pengulangan selama 12 minggu laktasi. Pakan konsentrat yang diformulasikan mengandung 18% PK dan 72% TDN (R1), 17% PK dan 75% TDN (R2), dan 16% PK dan 78% TDN (R3). Domba betina dipelihara dalam kandang individu dan diberikan pakan basal (cacahan rumput raja segar secara ad libitum sebanyak 500 g dari campuran pakan hijauan) dan 1 kg konsentrat perlakuan. Hasil penelitian menunjukkan bahwa perlakuan (R1, R2, dan R3) memiliki pengaruh nyata (P<0.05) terhadap asupan PK, PT, Ca, P dan FCR tetapi tidak berpengaruh nyata (P>0.05) terhadap asupan BK dan TDN. Perbedaan yang tidak nyata ditemukan pada produksi dan komposisi susu antar perlakuan. Berdasarkan hasil penelitian, dapat disimpulkan bahwa pakan terbaik untuk kambing SAPERA menyusui adalah campuran dari rumput cacah, campuram hijauan dan konsentrat (16% PK dan 78% TDN) dengan 160g/kg PK dan 750 g/kg TDN dari total BK yang memproduksi susu sebanyak 1.55 kg/hari dengan kandungan 90 g/hari lemak, 43 g/hari protein dan 75 g/hari laktosa. Dairy goat contributes to food and nutrition security. However, information on nutrient consumption and milk yield, as well as milk composition of Saanen x Etawah (SAPERA) grade goat is limited. This experiment was done to evaluated nutrient intake, milk yield and its composition of lactating SAPERA goats fed with different levels of dietary energy and protein in concentrate diet. Thirty multiparous SAPERA goats were used in a randomized block design with three treatments (R1, R2 and R3) and ten replications for 12 weeks of lactation. The concentrate diets were formulated to contain: 18% CP and 72% TDN (R1), 17% CP and 75% TDN (R2), 16% CP and 78% TDN (R3). Those does were penned individually, and fed by basal diet (fresh chopped King Grass ad libitum, 500 g of fresh mixed forages) and 1 kg of experimental concentrate. Results showed that the treatments had significant (P<0.05) effects on CP, DIP, Ca, P intakes and FCR but had no significant (P>0.05) effects on DM and TDN intake. No significant differences were found in milk yield and milk composition between treatments. In conclusion, this trial suggested that the best feed for lactating SAPERA goats was the mixture of chopped grasses, mixed f...

Diversity of milk traits in 25 goat breeds

“…In Brazil, Saanen and Anglo-Nubian breeds were crossed in an effort to strengthen the rusticity [13]. Sapera has a higher production than Etawah Grade [10,11] and has a higher fat content than Saanen [6,10,12]. Sapera, Sarda Primitiva, and Etawah Grade have a higher fat content among other breeds.…”