Study on the application of perilla seed extract in pig production

The experiment was conducted to evaluate the effect of Perilla Seed Extract on the growth performance and carcass quality of pigs by adding perilla seed extract to their diets from weaning to marketing, so as to explore a new method of using perilla seed extract to produce safe and high-quality pork Materials and methods 180 healthy weaned piglets with similar body weight were randomly divided into two groups: the experimental group and the control group The trial period was 149 days, 52 days in the early stage and 97 days in the later stage After the end of the preliminary test, 17 subjects were randomly selected from each repetition of the test group and the control group to continue the later test According to the growth stage of the experimental pigs, four stages of diets were fed Feed No.1 and No.2 in the early stage, and feed No.3 and No.4 in the later stage The experimental diet design is as follows: feed No.1 + zhiyuanjing 100mg / kg + aureomycin 60mg / kg + perilla seed extract 400g / ton in the experimental group Material 2 + ligomycin 50mg / kg + 400g / T perilla seed extract Material 3 + 250g perilla seed extract per ton Material 4 + 250g perilla seed extract per ton The control group was fed with diet 1 + 100 mg / kg of zhiyuanjing + 60 mg / kg of chlortetracycline Material 2 + ligomycin 50mg / kg Material 3 + florfenicol 80 mg / kg Material 4 + salinomycin 40 mg / kg Results and analysis of growth performance test, the weight ratio of the pre test group was 3.55% lower than that of the control group, the diarrhea rate and incidence rate of the experimental group were 38.43% and 45.86% lower than those of the control group, respectively The average daily gain of the experimental group increased by 4.96% compared with the control group at the end of the experiment, and the weight gain ratio of the experimental group was 4.49% lower than that of the control group Slaughtering and carcass performance were observed by slaughtering and segmentation There was no significant difference in fat thickness and eye muscle area between the experimental group and the control group However, the color of pork in the experimental group was bright, the meat color was better than that in the control group, and the lean meat rate was higher than that in the control group The slaughter rate of the experimental group was 0.4% higher than that of the control group In the economic benefit analysis, feed price, pig price and growth performance at that time were used to analyze the gross profit of each pig in each group The results showed that each pig in the experimental group with Perilla seed extract could gain 33 yuan more than that in the control group, with significant economic benefits Discussion and summary The results showed that adding perilla seed extract to pig feed, pigs in the spirit of conservation stage, could significantly improve the immunity and reduce the incidence rate; fattening stage can increase daily gain and feed intake, reduce feed to meat ratio; through slaughter test, it can be found that the extract of purple perilla seed can improve meat color and improve slaughter rate; the use of perilla seed extract can be obvious The economic benefits of raising pigs are improved, which reflects the application value of perilla seed extract in actual production This experiment also proved that in the fattening stage, the extract of perilla seed can be used without adding antibiotics, and the pigs can achieve better production performance.