STUDY ON WILD TEA LEAVES UTILISATION (TRICHANTHERA GIGANTEA) SUPPLEMENTED TO DIETS OF F1 PORKERS (♂R × ♀ ĐP) RASED IN TUYEN QUANG PROVINCE

Abstract

The study  was performed in 60 F1 porkers (x R x local Pig breed) raised for meat, from 2 months to 8 months old, which were divided into 4 groups (15 pigs per each group), supplemented with  wild tea leaves in the diets at the rate of 0-25 - 30 - 35%, the results show the cumulative growth of experimental pigs in experiment 1, experiment 2 and experiment 3 groups was higher than that of the control group from 2.58 to 4.56kg / pig (P <0.05), of which  experiment 2 group gave the best growth , namely: 31.48 - 33.02 - 31.04kg / pig. Reducing feed conversion ratio of concentrates from 8.32 to 13.84% in the experimental groups compared to control group.

Carcass rate of pigs in the control group and the experimental groups were 75.11 - 77.52- 77.71 - 77.40%, respectively (P <0.05). The lean meat ratio of the experimental groups was 0.81 - 3.89% higher than that of the control group of 44.44 - 46.90 - 48.33 - 45.25%, respectively (P <0.05). . Among the experimental groups, the lean meat ratio in experimental group 2 was the highest  of all  the experimental groups from 1.43 to 3.08% (P <0.05).

            The chemical composition of pork in the control group compared to the experimental groups was equivalent, namely: the ratio of DM (dry matter) and protein were: 25.3 - 25.8 - 26.05 - 25.87%, respectively. ; 22.73 - 22.79 - 22.68% (P> 0.05).

Thus, the complementation of wild tea leaves to the diets has a good effect on growth in pigs, reducing concentrate feed conversion ratio, increasing  carcass meat percentage, lean meat ratio, chemical composition and meat quality were unchanged. The rate of supplementing 30% of wild tea leaves in the diets to  the experimental pigs is reasonable and the most effective.