Abstract
The effect of jaloh extract combined with probiotic and chromium on the haematology profiles and ND antibody vaccine of broiler given heat stressABSTRACT. The purpose of this study is to determine the respons of chicken broiler under heat stress that given drinking water contained extract jaloh combined with probiotic and Cr mineral in the profile of haematology and antibody respons of Newcastle Disease vaccine. Twenty four of 20-day old Cobb broiler chickens were randomly assigned and devided to 6 treatment groups. Completely randomized design was used in this study. The treatments were as follows: 1) chickens under heat stress, given jaloh extract, probiotic, and chromium (P1); 2. chickens under heat stress, given jaloh extract and probiotic (P2); 3. chickens under heat stress, given jaloh extract and chromium (P3); chickens under heat stress, given jaloh extract (P4); 5. chickens under heat stress without given jaloh extract nor chromium and probiotic (P5); and 6. chickens given no heat stress and jaloh extract nor chromium and probiotic (P6). Extract jaloh dose applied is 1.000 mg/lt water, dose of probiotic is 108 cfu/lt drinking water, and chromium given in the form of chloride chromium with dose 1000 ug/lt water. Local heat stress is provided by increasing cage temperature to the range of 33.0 ± 1°C during 5 hours per day u within 15 days. Jaloh extract, probiotic, and chromium treatments in drinking water were given at 2 hour before cage temperature reaching 33 ± 1oC and were stopped being given after 1 hour, when cage temperature back to room temperature. Blood was taken before chickens were ethanuatiated. The result suggested that giving jaloh extract to combine it with probiotic, and chromium has no significant effect in hematology profile. When combined extract jaloh with chromium (Cr), has potencial capability to stimulate improvement built of antibody (as immunomodulator) on broiler chicken heat stress.
Highlights
Pemanasan global telah memicu terjadinya perubahan iklim bumi sehingga mempengaruhi terjadinya kenaikan temperatur di permukaan bumi
The purpose of this study is to determine the respons of chicken broiler under heat stress
Completely randomized design was used in this study
Summary
Materi tanaman jaloh yang dijadikan ekstrak etanol dideterminasi di Herbarium Bogoriense, LIPI Bogor, sebagai Salix tetrasperma Roxb. Pemberian cekaman panas dilakukan dengan meningkatkan suhu di dalam kandang berpemanas dengan menggunakan alat pemanas (heater) yang terbuat dari komponen kawat nikelin berdaya 1.000 Watt. Suhu dalam kandang berpemanas dinaikkan secara perlahan-lahan yang dimulai pukul 09.00 pagi dan dipertahankan stabil pada suhu 33 ± 1oC selama 4 jam perhari dalam waktu 15 hari. Metode Penelitian Rancangan percobaan yang digunakan pada penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 6 perlakuan dan 4 ulangan. Perlakuan VI adalah ayam tidak diberi cekaman panas dan tidak diberi ekstrak jaloh (kontrol positif atau kontrol di luar kandang berpemanas = P6). Suhu dalam kandang berpemanas secara perlahanlahan dinaikkan dimulai dari pukul 10.00 pagi dan dipertahankan stabil pada suhu 33 ± 1oC selama 5 jam (kira-kira jam 12.00-17.00 WIB). Parameter yang diukur pada penelitian ini adalah profil hematologi dan pengukuran titer antibodi vaksin ND. Perhitungan statistik dilakukan dengan menggunakan bantuan program Minitab 14 for Windows
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