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Subject: Animal Nutrition × Author: DUTTA, RUPJYOTI × End date: 2023 × Start date: 2020 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    EFFECT OF SUPPLEMENTATION OF ACIDIFIER ON THE PERFORMANCE OF BROILER CHICKEN
    (College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati, 2022-02) DUTTA, RUPJYOTI; Bhuyan, Robin
    One hundred twenty day old broiler chick of uniform body weight were divided into 4 different groups of 15 chick each viz. T0, T1, T2 and T3. Birds in all group were offered broiler starter (CP 21.5% and 3056 ME Kcal) and broiler finisher (CP 19.5% and 3100 ME/kg diet) from 0-21 days and from 22-42 days of age respectively. No acidifier was added in the diet of T1 group i.e. control group. The other three groups were fed acidifier in the diet @ 0.1% At the end of 6th week, the average body weight was 2168.37, 2209.17, 2107.53 and 1883.57 and the average total body weight gain was 1906.20, 2154.90, 2029.20 and 1821.30 for T0, T1, T2 and T3 group respectively. The average daily gain was 49.86, 51.31, 48.31 and 43.36 for T0, T1, T2 and T3 groups respectively. The average total feed intake was 3447.82, 3544.42, 3627.23 and 3560.33 and the average feed conversion was 1.73, 1.65, 1.78 and 1.97 for T0, T1, T2 and T3 group. The average weekly protein efficiency rate was 2.99, 3.15, 2.94 and 2.62 for T0, T1, T2 and T3 group. The percentage of retention of nitrogen was 69.21, 70.46, 69.08 and 69.19 calcium was 62.72, 62.57, 61.46, 60.46 and phosphorous was 48.01, 49.19, 49.19 and 50.01 for T0, T1, T2 and T3 group. The average dressing percentage was 73.71, 74.19, 73.40 and 68.45 and total giblet weight percentage were 3.12, 3.06, 3.16 and 3.17 for T0, T1, T2 and T3 group respectively. Meat compositions showed that moisture percentage was 73.62, 73.35, 74.32 and 74.80 for T0, T1, T2 and T3 group respectively. The protein and fat percentage in meat was 18.84, 19.26, 18.82, 17.08 and 6.34, 6.62, 6.28 and 6.04 and 0.75, 0.80, 0.79, 0.74 for ash. Overall mean concentrations of serum protein, blood glucose level, serum calcium and serum inorganic phosphorous was 3.84, 3.87, 3.78, 3.75, 188.62, 187.46, 184.14, 184.78, 5.22, 6.88, 6.62, 6.58 and 5.43, 5.55, 5.50, 5.63 respectively. The cost of feeding per kg body weight gain was Rs. 62.16, 58.16, 60.92, 70.21. The cost of feed was cheaper in T1 and T2 as compared to T0 and T3 group. On the basis of the above results of the present study it can be concluded that supplementation of acidifier in broiler diet with normal protein and energy diet as per (ICAR 2013) is advantageous for broiler production.