Effects of Dietary Complex Probiotics on Growth Performance Nutrient Digestibility and Blood Characteristics in Growing Pigs

육성돈에 있어 복합생균제 첨가가 생산성, 영양소 소화율, 혈액성상 및 분뇨내 악취물질 발생량에 미치는 효과

  • 유종상 (단국대학교 동물자원학과) ;
  • 진영걸 (단국대학교 동물자원학과) ;
  • 김인호 (단국대학교 동물자원학과)
  • Published : 2007.10.31

Abstract

The current study was conducted to investigate the effects of dietary complex probiotics supplementation on growth performance, nutrient digestibility, blood characteristics and noxious gas emission of manure slurry in growing pigs. A total of forty eight pigs with an initial body weight of 20.12 kg were allotted to three dietary treatments (two pigs per pen with eight pens per treatment). Dietary treatment included: 1) CON (basal diet), 2) Pro1 (basal diet + 0.1% complex probiotics) and 3) Pro2 (basal diet + 0.2% complex probiotics). The experiment was lasted six weeks. Through the entire experimental period, ADG was increased with the increased complex probiotics supplementation level (linear effect, P<0.05). However, neither ADFI nor gain/feed was influenced by the dietary treatments. Complex probiotics supplementation increased DM digestibility (linear effect, P<0.05). Also, the N digestibility was improved, with the Pro1 treatment showed highest value (linear and quadratic effect, P<0.05). Supplementation of complex probiotics did not affect the WBC, RBC, lymphocyte and BUN concentrations in blood. The $NH_3-N$ emission from manure slurry was decreased with the increased level of complex probiotics supplementation (linear and quadratic effect, P<0.05). Similarly, $H_2S$ emission of manure slurry was also decreased significantly when complex probiotics was included in diet (linear effect, P<0.05). In conclusion, dietary supplementation of Complex probiotics can increase growth performance and decrease noxious gas emission of manure slurry in growing pigs.