PSXIII-13 Effect of Dietary Supplementation of Crushed Sasa Quelpaertensis Nakai on Growth Performance, Carcass Characteristics and Meat Quality in Landrace Pigs

Abstract

Abstract This study was conducted to investigate the characteristics and physiological changes of growth performance by adding crushed Sasa quelpaertensis Nakai(SQN) to pig feed. The reason for using SQN is that SQN grows naturally under trees or at the foot of mountains and inhibits the growth of other plants, thereby preventing biodiversity maintenance. A total of 48 Landrace pigs with an average body weight of 45.11±6.16kg were assigned to four treatments with different levels of crushed SQN addition. The treatments were basal diet (control), basal diet supplemented with 2% SQN(T1), 4% SQN(T2) and 4% SQN(T2). The compound feeds were given ad libitum for 100 days. During the finishing period, the weight gain values in the four treatment groups were 111.37±3.66 kg, 109.40±3.27 kg, 106.10±3.28 kg and 103.50±3.27 kg, respectively. There was no significant difference in end-stage body weight, but the daily weight gain was 0.66±0.02kg, 0.64±0.02kg, 0.61±0.02kg, and 0.58±0.02kg, indicating that T1 was significantly (p< 0.05) greater than that of other treatment groups. Carcass characteristics were tested at 180 days of age, and the thickness of back fat in each treatment group was 21.75±1.48mm, 20.40±1.32mm, 18.60±1.32mm, and 19.20±1.32mm. The SQN-added group showed a tendency to thin back fat. In the physicochemical analysis of pig sirloin, the fat content was also significantly decreased in the SQN-added group to 3.76±0.38%, 3.52±0.39%, 2.44±0.39% and 2.79±0.39% by treatment group. In the fatty acid composition, there was a difference in linolenic acid (C18:3n3), but there was no significant difference overall. According to the results of this study, it was difficult to observe anti-obesity effect of crushd SQN because it was not digested in pigs, a unit animal. However, if the SQN extract is used, the possibility of using it as a pig feed has been confirmed, and it is judged that it can be used as a reference for the development of feed additives.