Effects of using fibro-biotics from water hyacinth in diet on growth performance, nutrient digestibility and microbial population in posterior gut of post-weaning pigs
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Abstract
Fibro-biotics, derived from water hyacinth, are modified with cellulose producing microbes, resulting in higher protein and lower fiber content and can be used in pig feed. The objective of this study was to investigate the effects of using fibro-biotics from water hyacinth in diets on growth performance, nutrient digestibility and microbial population in posterior gut in post-weaning pigs. Twenty four males of Large-White x Landrace crossbred pigs (average body weight 10.2±3.41 kg) were arranged in completely randomized design. The experiment consisted of four treatments, each with three replications; treatment 1 was a controlled diet (0 % of water hyacinth fibro-biotics) treatment 2, 3, and 4 were contained 5, 10, and 15 % of water hyacinth fibro-biotics, respectively. Within 60 days of experimental duration the results showed, feed intake and digestibility of dry matter and protein were decreased at 15 % (P < 0.01) while at 5 and 10 % were not significant different when compared with a control (P > 0.05). Body weight gain and ADG increased at the level of 5 % (P = 0.07) but decreased at the level of 15 % (P < 0.01). As a result, FCR was the lowest at the 5 % level (P < 0.05) but increased at the level of 15 % (P < 0.01). Feed costs per gain were not significant different (P > 0.05). However, there was an average reduction of 0.9-1.4 baht/kg of weight gain when using fibro-biotic from water hyacinth 5-15 %. Fibro-biotics from water hyacinth resulted in a higher number of lactic acid bacteria in the intestinal tract (P < 0.01), while there was no difference in the number of E. coli and total microorganisms (P > 0.05). It has been shown that fibro-biotics from water hyacinth can be used in post-weaning pig diets. A 5 % inclusion level is likely the most appropriate and has a positive effect on growth performance
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