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Subject: Animal Nutrition × Author: Das, Nirmali × Start date: 2016 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Effect of feeding pineapple waste with probiotic supplementation on the performance of growing pigs
    (College of Veterinary Science, Assam Agricultural University, Khanapara Campus, 2022-03) Das, Nirmali; Bhuyan, Robin
    A 5 month feeding trial was conducted on 24 weaned cross bred piglets (Hampshire × Local) pigs (11.53±1.08 to 11.75±1.03 kg body weight) to investigate the effect of feeding pineapple waste with probiotic supplementation on the growth performance, feed conversion ratio, nutrient utilization, blood biochemical, faecal microbial count, carcass characteristics and cost of feeding. Basal rations (BIS, 2001) were assigned as C, T1, T2 and T3. The pineapple waste were sundried, chaffed into small pieces and then mixed with the basal diet at 10, 20 and 30% level for T1, T2 and T3 respectively. Probiotic (lactobacillus) was added at the level of 0.35g in all the ration including control. Two digestion trials were carried out – once in the growing phase (18th week) and another one in the finishing phase (22nd week). Faeces and blood samples were collected from each treatment group at three stages i.e., initial, grower and finisher stages of the feeding trial for estimation of total bacterial count and for evaluation of haemato-biochemical parameters. For carcass characteristics study, three pigs from each treatment were sacrificed at the end of the feeding trial. Study revealed improvement in feed consumption in the growing and finishing phase and also found that T2 was significantly higher (P<0.05). Apparent digestibility coefficient of all the nutrients was comparatively higher in T2 followed by C, T1 and T3. Significant difference was found among the groups (P<0.05) in apparent digestibility coefficient of CP, EE and NFE in grower phase; whereas in finisher stage significant difference (P<0.05) was observed in apparent digestibility co-efficient of DM, CP, EE, NFE and OM among the groups. The average daily body weight gain (ADG) was significantly higher in T2 groups and resulted significantly higher total gain and final body weights than C, T1 and T3. Significant difference was found in both phases among treatment group on nitrogen balance where T2 was found significantly different from C, T1 and T3 (P<0.05), whereas C, T1 and T2 was found significantly similar. Significant difference was not found in ca balance for both the phases (P>0.05); whereas significant difference was found in p balance in finisher phase (P<0.05). The FCR at the end of feeding trial was calculated as 4.264±0.085, 4.211±0.041, 4.200±0.060 and 4.415±0.042 for C, T1, T2 and T3 respectively and indicating significantly better FCR in T2 groups. The feeding cost (Rs./kg body weight gain) in the growing phase was Rs.124.87, Rs. 117.12, Rs 113.28 and Rs.113.38; whereas for finisher phase the feeding cost (Rs./kg body weight gain ) was calculated as Rs. 126.77, Rs. 117.77, Rs.113.31 and Rs.114.35 for C, T1,T2 and T3 groups, respectively, which indicated significantly reduced feeding cost/kg body weight gain in T2 group compared to C, T1 and T3. All haemato-biochemical parameters were within the normal range in all the treatment groups. Significant difference (P<0.01) was observed among the groups for faecal microbial load. Also significant difference was observed for slaughter weight, carcass weight, dressing percentage, carcass length, back fat thickness and loin eye area where C, T1 and T2 was found significantly different from T3(P<0.01). Findings of the study revealed that feeding pineapple waste upto 20% level significantly improved growth performance, digestibility of nutrients, faecal microbial load and feed: gain ratio of pigs. Thus, feeding of pineapple waste upto 20% level may be recommended to crossbred pigs for remunerative and sustainable profit.