Improving the Quality of Reproduction and Quail Production (Coturnix coturnix japonica) with Liquid Probiotics

This study aimedto determine the effect of various liquid probiotics in drinking water on the quality ofquails'reproductive tract and production. The study used a Completely Randomized Design with four treatments, i.e., drinking water without liquid probiotics (P0), drinking water +commercial probiotics A (P1), drinking water +commercial probiotics B (P2), and drinking water +commercial probiotics C (P3). The treatment was repeated 5 times and each unit contained 5 quails. Drinking water was given ad libitum with liquid probiotic concentration of 2ml/litre. Quail feed contains 22.2% crude protein and 3032.5 kcal/kg metabolic energy. The observed variable were the weight and length of reproductive tract, egg weight,final body weight, slaughtered weight, dressed carcass weight, heart weight, gastrointestinal weight and lenght of caeca. Quail drinking water consumption was 2.48 -2.74 times the consumption of feed.Analysis of variance showed that the liquid probiotic significantlyaffectedthe weightand lengthof the reproductive tract, egg weight, weight before and after slaughtered, weight after hair removal, heart weight, and gastrointestinal weight. There was no significant effect on carcass weight, liver weight, follicular weight, gizard weight, digestive tract length and caeca length. In conclusion, liquid probiotics in drinkingwater produced different final body weight, digestive tracts and the sizeofreproduction tracts of quailsthan those in control group. The supplementation also increased the weight and length of quails' reproductivetracts. Compared to other probiotics, liquid probiotics A in drinking water producedthe highest final weight, post-slaughter weight, dressed carcass weight, liver weight and digestive tractsweight.