Abstrak 
Mineral Plasma Dan Respons
Iman Hernaman, Toto Toharmat, Simson Tarigan
IPB, Balai Penelitian Veteriner Bogor, Unpad
Indonesia
Unpad
antibodi, antibody, cekaman, Mineral plasma, Plasma minerals, seng dan minyak ikan, stress, transportasi, transportation, zinc and fish oil
Seng sangat penting di dalam sistem kekebalan tubuh. Akan tetapi,
kandungannya di dalam bahan pakan di Indonesia secara umum rendah. Ternak banyak mengeluarkan seng melalui urine bila mengalami cekaman transportasi, oleh karena itu kebutuhan seng mungkin meningkat. Penelitian ini bertujuan untuk melihat mineral plasma dan respons antibodi setelah mengalami cekaman transportasi. Enam belas domba ekor tipis jantan dialokasikan ke dalam Rancangan Acak Lengkap dengan menggunakan ransum basal yang memiliki kandungan Zn sebesar 22.8 ppm. Perlakuan terdiri atas; ransum basal (R1), R1 +
36 ppm Zn (R2), R1 + minyak ikan 1.5% (R3) dan R1 + 36 ppm Zn + minyak ikan 1.5% 1.5% (R4). Ternak domba diberi makan dua kali pada jam 08.00 dan 16.00. Masing masing domba divaksinasi dengan Clostridium perfringens pada 41 dan 3 hari sebelum transportasi. Ketika ternak mengalami cekaman transportasi diperoleh kondisi fisiologis sebagai berikut : (1) Seng plasma menurun untuk semua perlakuan (2) Kalium dan Mg plasma menurun dan kembali normal pada jam ke-88 setelah transportasi (3) Natrium plasma meningkat pada perlakuan Zn
+ minyak ikan pada jam ke-40 (4) Suplementasi Zn meningkatkan respons antibodi. Hasil penelitian ini dapat disimpulkan bahwa suplementasi Zn meningkatkan kekebalan tubuh dan kadar seng mungkin perlu ditingkatkan lagi dalam ransum setelah ternak mengalami cekaman transportasi
Zinc has an important role in immune system. However, Zn content is low in most of feed in Indonesia. Excretion of Zn in animal urine increases when it is exposed to transportation stress, hence its Zn requirement may also increase. The experiment to find out plasm minerals and antibody response in lambs exposed to transportation stress hed been conducted. Sixteen local thin-tail lambs were
allocated into a Completely Randomized Design using Basal diet with Zn content of 22.8 ppm. The treatments : basal diet (R1), R1 + 36 ppm Zn (R2), R1 + fish oil 1.5% (R3), and R1+ 36 ppm Zn + fish oil 1.5% (R4). Lambs were daily fed twice at 0800 AM and 1600 PM. Each lamb was vaccinated with Clostridium perfringens on 41 and 3 days before exposing to transportation stress. When lambs were exposed to transportation stress, the following physiological condition were observed: (1) plasma Zn decreased in all treatments; (2) plasma K and Mg in all lambs decreased and returned to the normal level at 88 h after exposing the stress; (3) plasma Na increased in lambs with Zn+ fish oil supplement at 40 h;(4) Zinc supplement increased antibody response. It is concluded that Znsupplement improved imune response of stressed lambs. Zinc requirement might increase when lambs were exposed to transportation stress
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