Abstract
An immunomodulator is a natural body defence mechanism due to the stimulation of objects/ environments, both specific and non-specific by means of cellular and humoraldefence. The objective of the study was to prove the immunomodulation ability of broiler chickens up to age 35 days that dietary fed various wheat pollard based rations. The design used in the study was a complete randomized design with six treatments and three replications. The treatment of broiler rats consisted of BR-IAJ (T0), control feed with wheat pollard base (T1), control feed with wheat pollard base plus probiotic (T2), wheat pollard based feed steamed (T3), fermented wheat pollard based feed 40% (T4 ) and fermented wheat pollard based feed 60% (T5). The rations used contained 20,5-22,5% protein with 2900-3100 Kcal metabolic energy. Lohman MB 202 Platinum from PT. Japfa Comfeed used in research with average day old chick (DOC) weight of 36,39 + 2,45 g. Parameters observed included body weight, feed intake, feed conversion ratio (FCR), relative weights of liver organ, thymus, lymph and bursa fabricius. The results showed that wheat pollard-based rations had a significant effect (p <0,05) on the relative weight of liver organ, body weight, FCR and ration consumption, but did not affect the relative weights of spleen organ, thymus and bursa fabricius. The mean relative weight of consecutive liver as follows: 2,47 g (T0), 2,83 g (T1), 3,40 g (T2), 2,99 g (T3), 3,15 g (T4) and 3,06 g (T5). The average body weight, consumption and FCR rations were as follows: 1415,24 g; 136,45 g/day; 2,03 (T0), 775,04 g; 125,19 g/day; 3,40 (T1), 813,17 g; 129,86 g / day; 3,36 (T2), 792,89 g; 128,14 g /day; 3,54 (T3), 892,91 g; 138,33 g /day; 3,27 (T4), 969,56 g; 155,52 g/day; 3,37 (T5). The conclusion of the study was that the ration with the addition of wheat pollard 60% was able to provide an increase in body weight gain and the best immunomodulation seen from the aspect of the proportion of immunomodulating organs to the growth of broiler chickens.
Highlights
An immunomodulator is a natural body defence mechanism due to the stimulation of objects/ environments, both specific and non-specific by means of cellular and humoraldefence
The treatment of broiler rats consisted of BR-IAJ (T0), control feed with wheat pollard base (T1), control feed with wheat pollard base plus probiotic (T2), wheat pollard based feed steamed (T3), fermented wheat pollard based feed 40% (T4 ) and fermented wheat pollard based feed 60% (T5)
Japfa Comfeed used in research with average day old chick (DOC) weight of 36,39 + 2,45 g
Summary
Juni 2019 Vol 20 No 2 : 352-359 ransum, feed conversion ratio (FCR), bobot relatif organ hati, timus, bursa fabrisius dan limfa. Kesimpulan dari penelitian adalah ransum dengan penambahan wheat pollard 60% mampu memberikan peningkatan pertambahan bobot badan dan immunomodulasi terbaik dilihat dari aspek proporsi organ immunomodulasi terhadap pertumbuhan ayam broiler. Tingginya serat kasar dan zat antinutrisi dalam ransum akan mengakibatkan konsumsi ransum turun sehingga proses fisilogis terganggu dan ayam mudah terserang penyakit yang ditandai dengan meningkat berat organ limposit. Utama et al (2017) menyatakan bahwa wheat pollard yang diolah dengan pemanasan terkendali mampu mengubah struktur serat maupun glanula pati, sehingga dapat berperan sebagai bahan pakan fungsional. Pengolahan wheat pollard dengan fermentasi menggunakan jus kubis fermentasi memberikan nilai tambah pada substrat dan mengandung bakteri menguntungkan seperti Lactobacillus plantarum, Lactobacillus brevis, Rhizopus oryze dan Sacchamomyces cerevise, serta mampu merombak serat kasar yang berada dalam wheat pollard, sehingga dapat berperan sebagai pakan fungsional (Utama et al, 2013; Suardana et al, 2007, Utama et al, 2018a; Utama et al.,2018b). Hipotesis penelitian ini adalah pemberian wheat pollard fermentasi mampu meningkatkan imunomodulasi ayam broiler sampai umur 35 hari
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