Study on the effect of aqueous enzymatic extraction of tea seed meal as raw material in feed of pig
Yue Long;Ye Xiaofei;Zhou Yue;Zhao Jianfei;Hu Guanbo;Chen Datu;He Xi;Zhang Shirui;
This experiment was conducted to study the effect of "water enzyme method" tea seedmeal on growing and finishing pigs, the possibility that tea seed mea used as feed ingredient was dis-cussed. Through single factor experiment design, the ratio of tea seed meal replace wheat bran in feedformula were 3%(group 1), 4%(group 2), 5%(group 3), the control group was nomarl feed without teaseed meal. This experiment was conducted to choose 72 barrows(Duroc×Landrace×Yorkshire), whichwere allotted to 4 treatments with 3 replicates per treatment and 6 barrows per replicate.Growth perfor-mance, and related blood biochemical indexes were determined. The results in growing process showedas follows: 1The ADG among control group, group 1 and group 2 were no significantly different(P0.05), control group was significantly higher than group 3(P0.05); F/G showed no significantly differ-ent among four groups(P0.05). 2 serum aspar-tate aminotransferase(AST), alanine aminotrans-ferase(ALT), blood urea nitrogen(UREA) and al-kaline phosphatase(ALP) showed no significantdifference among four groups(P0.05). The diar-rhea was in the normal range.The results in finishing process showed as42follows: 1The daily intake among control group, group 1 and group 2 were no significantly different(P0.05), control group was significantly higher than group 3(P0.05); The ADG of control group was sig-nificantly higher than others(P0.05), The ADG of group 1 was significantly higher than group 3(P0.05). The F/G of control group was significantly lower than others(P0.05), the F/G among group 1,group 2 and group 3 had no significant difference(P0.05). 2The content of glutathione peroxidase(GSH-Px) and malondialdehyde(MDA) in control group were not significantly higher than others(P0.05), the content of serum superoxide dismutase(SOD) in control group were significantly lower thanothers(P0.05). 3Organs were normal after slaughtered. This experiment showed that: water enzymemethod tea seed meal has certain value in the feed, with low adding(less than 4%); The active ingredi-ent such as polysaccharide and polyphenol which was left from oil extraction was help to protect thehealth of pigs.