Free radical levels can be higher than the level of endogenous antioxidants in the body so that uncomfortable conditions in the body of dairy goats could happen. To anticipate this uncomfortable conditions will be given feed supplement (FS) as source of antioxidants (AOX). FS contain mixture pineapple rind meal and antioxidant minerals (AOXM) each 25 ppm Zn and 10 ppm Cu. This experiment was carried out to investigate the effect of feed supplements as antioxidant source on milk quality of dairy goats. Sixteen Etawah dairy goats in the second lactation were used in the experiment that conducted using randomized block design with 4 treatments and 4 replicates. The treatments were R0 (grass + concentrate), R1 (R0 + FS containing 0.04 % AOX), R2 (R0 + FS containing 0.06% AOX), R3 (R0 + FS containing 0.08 % AOX). The data collected were analyzed using Anova. The result of phytochemicals analysis indicated that feed supplement contained flavonoid, polyphenols, sesqiuterpen, mopnoterpen, steroids, quinones and saponins. The results of study showed that there were difference (p<0.05) among treatments on blood and milk cholesterol and milk lactose, but there were no difference (P>0.05) on milk yield, milk fat, milk protein and milk antioxidant. The conclusion of this study was the feed supplements containing 0.08 AOX produced the best response to milk quality of dairy goats.

Palm oil frond is one of the plantation waste that can be used as animal feed especially in the dry season when green forage became rare. In 1 Ha of plantation land, around 20.000 kg of fresh palm oil frond can be obtained each year. The study aimed to determine the fermentation process between oil palm fronds with prolinas (OPFP) as substitution of corn straw in dairy cattle rations and to see how it affect to milk production of PFH dairy cows. This study used 4 of fourth lactation PFH dairy cattle. The experiments used a latin square design with 4 treatments and 4 repetition. The treatment consisted of P0: forage 55% + 45% concentrate (control), P1: forage 55% (90% corn straw + OPFP 10%) + 45% concentrate, P2: forage 55% (80% corn straw + OPFP 20% ) + 45% Concentrate, P3: Forage 55% (60% corn straw + OPFP 40%) + 45% concentrate. The parameters measured were feed consumption, feed efficiency, milk production and 4% FCM milk production. Data were analyzed by SAS programe. The Differences between treatments were analyzed using Duncan Multiple Range Test.The results showed that corn straw substitution treatment with fermentation of oil palm fronds with prolinas has no effect (P> 0.05) to feed efficiency and 4% FCM milk production but decreasing (P <0.05) the feed consumption and and milk production. The conclusions of this research that the substitution of fermentation of oil palm fronds with prolinas decreased milk production of dairy cattle.

Penelitian yang dilakukan adalah penggunaan pakan suplemen (PS) yang mengandung serbuk kulit nenas SKN) yang ditambah mineral Zn sebanyak 25 ppm dan mineral Cu sebanyak 10 ppm sebagai sumber antioksidan untuk meningkat kecernaan secara in vitro. Dalam penelitian ini menggunakan kambing perah peranakan etawah laktasi kedua dengan produksi susu rata-rata 0,467 liter/ekor/hari. Pakan yang diberikan adalah rumput gajah (Pennisetum purpureum) dan konsentrat komersial yang mengandung protein kasar 12,6% (500 g/e/hr). Rancangan pada penelitian in vitro ini mengggunakan Rancangan Acak Lengkap dengan 5 perlakuan dan 4 ulangan yang terdiri dari: R0 : rumput gajah + konsentrat (kontrol), R1 : R0 + PS (SKN 3,6%), R2 : R0 + PS (SKN 4,8%) R3: R0 + PS (SKN 3,6 + Mineral Zn dan Cu), R4 : R0 + PS (SKN 4,8% + Mineral Zn dan Cu). Parameter yang diamati adalah pH, NH3 , KcBK dan KcBO, VFA Total, VFA Parsial (asam asetat, asam propionat dan asam butirat) cairan rumen kambing perah. Hasil penelitian in vitro menunjukan bahwa pakan suplemen mampu meningkatkan kecernaan bahan kering dan bahan organik, VFA total dan parsial cairan rumen kambing perah peranakan Etawah