사료내 흑운모 분말 첨가가 육성돈의 생산성, 혈액내 면역 및 스트레스 관련지표의 변화, 분중 악취방출 가스 생성에미치는 영향 (Effects of Dietary Biotite Powder on Growth Performance, Changes in Blood Immune and Stress Related Parameters, and Fecal Malodor Gas Emission in Growing Pigs)

서지정보

· 발행기관 : 한국축산학회
· 수록지 정보 : 한국축산학회지 / 50권 / 3호 / 321 ~ 330페이지
· 저자명 : 장해동, 김진동, 홍종욱, 유종상, 김효진, 신승오, 황염, 주천상, 진영걸, 조진호, 정연권, 김인호

초록

This study was conducted to evaluate effects of biotite powder on growth performance, changes in blood immune and stress related parameters, and fecal malodor gas emission in growing pigs. 96 pigs[(Landrace ×Yorkshire)×Duroc, average initial body weight of 29.45±1.35kg] were used in 42d growth trial. Dietary treatments included CON(Basal diet), Solt2(Basal diet+ Biotite 0.2%), Solt4(Basal diet+Biotite 0.4%) and Solt6(Basal diet+Biotite 0.6%). The pigs were assigned to each treatment based on body weight and each treatment had 6 replicates of 4 pigs per pen in a randomized complete block design. Nitrogen digestibility was significantly higher in Solt4 treatment group than in CON and Solt2 treatment groups(Linear effect = 0.016). Gross energy in Solt4 and Solt6 treatment groups was higher than in CON treatment group(Linear effect=0.008, Quadratic effect=0.019). There were no significant differences in blood immunological(RBC, WBC, Lymphocyte and IgG) and stress related parameters(cortisol, epinephrine and norepinephrine) among treatment groups. At day 5 and day 10, hydrogen sulfide was reduced in Solt treatment groups compared to CON treatment group(day 5, Linear effect=0.009, Quadratic effect=0.037; day 10, Linear effect= 0.009). At day 5, acetic acid was significantly reduced in Solt treatments compared to CON treatment group(Linear effect<0.001, Quadratic effect<0.001). At day 15, acetic acid was significantly decreased in CON and Solt6 treatment groups compared to Solt2 and Solt4 treatment groups(Quadratic effect= 0.023). At day 5 and day 10, Solt treatment groups showed decreased total mercaptans compared to CON treatment group(day 5, Linear effect=0.029, Quadratic effect=0.037; day 10, Linear effect=0.029). For the whole experimental period, ammonia was significantly reduced in Solt2 and Solt4 treatment groups compared to CON and Solt6 treatment groups(day 5, Quadratic effect=0.038; day 10, Quadratic effect=0.045; day 15, Quadratic effect=0.038). In conclusion, biotite decreased fecal malodor gas emission in growing pigs.

영어초록

This study was conducted to evaluate effects of biotite powder on growth performance, changes in blood immune and stress related parameters, and fecal malodor gas emission in growing pigs. 96 pigs[(Landrace ×Yorkshire)×Duroc, average initial body weight of 29.45±1.35kg] were used in 42d growth trial. Dietary treatments included CON(Basal diet), Solt2(Basal diet+ Biotite 0.2%), Solt4(Basal diet+Biotite 0.4%) and Solt6(Basal diet+Biotite 0.6%). The pigs were assigned to each treatment based on body weight and each treatment had 6 replicates of 4 pigs per pen in a randomized complete block design. Nitrogen digestibility was significantly higher in Solt4 treatment group than in CON and Solt2 treatment groups(Linear effect = 0.016). Gross energy in Solt4 and Solt6 treatment groups was higher than in CON treatment group(Linear effect=0.008, Quadratic effect=0.019). There were no significant differences in blood immunological(RBC, WBC, Lymphocyte and IgG) and stress related parameters(cortisol, epinephrine and norepinephrine) among treatment groups. At day 5 and day 10, hydrogen sulfide was reduced in Solt treatment groups compared to CON treatment group(day 5, Linear effect=0.009, Quadratic effect=0.037; day 10, Linear effect= 0.009). At day 5, acetic acid was significantly reduced in Solt treatments compared to CON treatment group(Linear effect<0.001, Quadratic effect<0.001). At day 15, acetic acid was significantly decreased in CON and Solt6 treatment groups compared to Solt2 and Solt4 treatment groups(Quadratic effect= 0.023). At day 5 and day 10, Solt treatment groups showed decreased total mercaptans compared to CON treatment group(day 5, Linear effect=0.029, Quadratic effect=0.037; day 10, Linear effect=0.029). For the whole experimental period, ammonia was significantly reduced in Solt2 and Solt4 treatment groups compared to CON and Solt6 treatment groups(day 5, Quadratic effect=0.038; day 10, Quadratic effect=0.045; day 15, Quadratic effect=0.038). In conclusion, biotite decreased fecal malodor gas emission in growing pigs.

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