EFFECT OF DIETARY SUPPLEMENTATION OF LECITHIN AND CARNITINE ON GROWTH IN PIGLETS ON HIGH FAT DIET
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Date
2016
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COLLEGE OF VETERINARY AND ANIMAL SCIENCES-MANNUTHY,THRISSUR
Abstract
An experiment was carried out for a period of 98 days in fifty six weaned female Large White Yorkshire piglets of two months of age belonging to Centre for Pig Production and Research, Mannuthy, with an average body weight of 21.7 kg to assess the effect of dietary supplementation of lecithin and carnitine on growth in piglets fed on high fat diet. The piglets were divided into five groups as uniformly as possible with four replicates in each group and were randomly allotted to five dietary treatments, T1 (control ration as per NRC, 1998), T2 (control ration supplemented with five per cent animal fat), T3 (T2 plus 0.5 per cent lecithin), T4 (T2 plus 150 mg of carnitine per kg diet), T5 (T2 plus 0.5 per cent lecithin plus 150 mg of carnitine per kg diet) using completely randomized design. Data on daily dry matter intake, body weight at fortnightly intervals, body weight gain, average daily gain, feed conversion efficiency, digestibility of nutrients, mineral availability, gross energy of feed and faeces, blood parameters (total protein, total cholesterol, triglycerides, HDL cholesterol, LDL cholesterol, calcium, phosphorus and magnesium) were used for evaluation of work. Cost of feed per kg body weight gain was also estimated.
The results of the study indicated that the pigs under dietary treatments T2, T3, T4 and T5 shows significantly improved growth performance with regards to average final body weight, body weight gain, total dry matter intake than control group (T1) during overall period. However, pigs under growing stage responded more on dietary supplements than those under finisher stage by exhibiting significant improvement for all growth parameters. But no differences were observed among the dietary groups on nutrient digestibility, mineral availability and serum biochemical profile. Elevated serum lipid profile was observed for T2 (only fat added group) which could be significantly reduced by supplementation of fat along with either 0.5 per cent lecithin or 150 mg of carnitine/kg diet and carnitine was found to have more effect on increasing HDL cholesterol than lecithin. In economic point of view, dietary supplementation of animal fat at 5 per cent level (T2) during early grower phase would be beneficial for improving the growth in weaned LWY piglets without dietary modifiers.
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