ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (10): 1648-1655.doi: 10.11843/j.issn.0366-6964.2014.10.010

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Effects of Diets Supplemented with Probiotic on Growth Performance，Gastrointestinal pH and Meat Quality of Suhuai Pigs

LIU Jin-yang1，2，WANG Zai-gui1*，ZHANG Hong-fu2*，LU Qing-ping2，GAO Yang3，WANG Shou-zhong4，CUI Shi-gui4，WU Rong-shan4   

  1. (1.College of Life Science，Anhui Agricultural University，Hefei 230036，China；2.State Key Laboratory of Animal Nutrition，Institute of Animal Science，Chinese Academy of Agricultural Sciences，Beijing 100193，China；3.Animal Sciences College，Jilin University，Changchun 130012，China；4.Huai’an Healthy Breeding and Feed Research Center，Chinese Academy of Agricultural Sciences,Huai’an 223005，China)
  • Received:2014-01-25 Online:2014-10-23 Published:2014-10-23

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Abstract:

This study was conducted to investigate the effects of diets supplemented with probiotic on growth performance，gastrointestinal pH and meat quality of Suhuai pigs.Two hundred and ten healthy Suhuai pigs were collected by similar parity and similar body weight((30.29 ± 3.00) kg)，then randomly divided into 3 groups (with 5 replications per group and 14 pigs in each replication) according to 3 different kinds of diets processing：basal diet group (basal diet)，probiotic group (basal diet with probiotic)，and antibiotic group (basal diet with antibiotic).The experiment lasted 98 days.The results showed that：(1) Suhuai pigs in probiotic group had 13.30% higher average daily gain (ADG) (P<0.01) and 9.04% higher average daily feed intake (ADFI) (P<0.05)，and 70.29% lower diarrhea rate (P<0.01) than basal diet group；compared with antibiotic group，Suhuai pigs in probiotic group had 7.48% lower ADG (P<0.01) and 10.56% higher average daily feed intake/average daily gain (F/G) (P<0.05)，and no significant differences in ADFI and diarrhea rate (P>0.05).Antibiotic group had 22.46% higher ADG (P<0.01)，13.04% lower F/G (P<0.01) and 67.36% lower diarrhea rate (P<0.01) than basal diet group.(2) There were no significant differences among the 3 groups (P>0.05) in gastrointestinal pH.(3) Probiotic group and basal diet group had 1.72% and 1.96% higher dressing rate，40.42% and 36.17% lower drip loss (P<0.05)，7.28%（P<0.05）and 2.60% lower muscle moisture content than antibiotic group.Suhuai pigs in probiotic group had 43.15% and 29.81% higher IMF than basal diet group and antibiotic group，but not significant (P>0.05).This study indicated that diets supplemented probiotics could improve the growth performance effectively，at the same time，decrease the drip loss，improve the IMF content，and improve meat quality of Suhuai pigs.

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