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Subject: Livestock Production and Management × Author: AHMED, REKIB UDDIN × End date: 2017 × Start date: 2017 ×
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    ThesisItemOpen Access
    EFFECT OF COMPLETE FEED BLOCK ON GROWTH PERFORMANCE OF CROSSBRED CALVES UNDER FARM CONDITION
    (College of Veterinary Science Assam Agricultural University Khanapara, Guwahati-781022, 2017-07) AHMED, REKIB UDDIN; Mili, Dulal Chandra
    Twenty (20) crossbred calves (Jersey× Assam Local) of both sexes in the age group of 8-10 months , weighing average body weight of 73.61±3.84 kg were randomly distributed into two groups control (T1) and treatment (T2) respectively with 10 animals in each group by using randomized block design (RBD). Control (T1) group was fed with standard feeding system (concentrate mixture, para grass and paddy straw) as per farm schedule and treatment (T2) group was fed with complete feed block having 60% roughages (para grass -50% and paddy straw-50%) , 30% concentrate mixture and 10 %molasses in the ratio 60: 30: 10. The two groups were fed the same concentrate mixture containing 16.64 per cent DCP and 70.40 per cent of TDN for 90 days. The average daily gain and FCE of different treatment groups were 188±0.01 and 217 ±0.01 gm ; 9.07±1.16 and 7.78±0..21 in control (T1) and treatment (T2) groups respectively. Significant (P<0.05) difference were observed in fifth and sixth fortnight in between the two treatment groups in respect of body weight gain per day and FCE. Significant (P<0.05) difference were observed in overall mean between the two treatment groups in respect of body weight gain per day. However, non-significant (P<0.05) difference was observed between the groups in respect of linear body measurement. Body measurements (body length, heart girth and height at withers) were apparently higher in treatment (T2) .DM intake was higher in treatment (T2) than the control (T1) group. Highly significant (P<0.01) difference were observed between the treatment at fourth, fifth and sixth fortnight as well as between the over all pooled means of the two groups in respect of dry matter intake . The blood constituent viz. serum glucose, serum total protein, hemoglobin, serum calcium were within the normal range for crossbred calves but were higher in treatment (T2) group. The cost per kg gain in body weight was lower (Rs. 65.32) in treatment (T2) group in comparison to control (T1) (Rs. 66.28). The result suggested that crossbred calves may be reared on feeding of complete feed block having 60% roughages (para grass -50% and paddy straw-50%) , 30% concentrate mixture and 10 %molasses in the ratio 60: 30: 10. with better growth performance and economic advantage of rearing calves.