China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (5): 1436-1443.doi: 10.16431/j.cnki.1671-7236.2020.05.017

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Fermentation with Different Strains on the Nutritional Values of Calliandra calothyrsus Leaf Powder

CUI Yiyan, DENG Dun, TIAN Zhimei, LIU Zhichang, WANG Gang, LU Huijie, MA Xianyong   

  1. State Key Laboratory of Livestock and Poultry Breeding, The Key Laboratory of Animal Nutrition and Feed Science(South China), Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Guangdong Engineering Technology Research Center of Animal Meat Quality and Safety Control and Evaluation, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
  • Online:2020-05-20 Published:2020-05-18

Abstract: The purpose of this experiment was to study the effect of different strains combination fermentation on the nutritional value and anti-nutritional factors of Calliandra calothyrsus leaf powder.Under the same conditions,Lactobacillus reuteri (A),Lactococcuslactis (B) and Bacillus subtilis (C) were used for solid-state fermentation,and the inoculum amount were single strain (2% v/m) and double strains combination (2%/2%),three strains combination (2%/2%/2%).The results showed as follows:①Compared with the unfermented leaf powder (CON),fermentation treatments significantly reduced the contents of ether extract(EE) and tannin in Calliandracalothyrsus leaf powder (P<0.05).The crude protein (CP) content in B,A+B,A+C and A+B+C groups were significantly increased (P<0.05),while the ash content was significantly increased in C,A+B,A+C,B+C and A+B+C groups (P<0.05).Different fermentation treatments had no significant effect on NDF,ADF,Ca,P,carbohydrate and energy (P>0.05).② The content of asparagine in A+B+C group was significantly higher than that in A,B,C,A+B,and A+C groups (P<0.05).The serine content in B+C group was significantly higher than that in CON,A,B,C,and A+B+C groups (P<0.05).The contents of glutamate,alanine,phenylalanine and proline in A+B+C group were significantly higher than those in other groups (P<0.05).The cysteine content in the CON group was significantly higher than the other groups (P<0.05).The contents of methionine,glycine,leucine,isoleucine,lysine,histidine,arginine,total animo acids (TAA),essential amino acids (EAA),nonessential amino acids (NEAA),EAA/TAA,and EAA/NEAA in CON and A+B+C groups were significantly higher than those in other groups (P<0.05).Different fermentation treatments had no significant effect on the contents of threonine,valine and tyrosine in Calliandra calothyrsus leaf powder (P>0.05).③For Calliandra calothyrsus leaf powder(after and before fermentation),EAA/TAA and EAA/NEAA were close to the ideal protein of FAO/WHO,the TEAA,threonine,leucine,and tyrosine+phenylalanine were higher than egg protein or FAO modes.While the content of cysteine+methionine was lower than egg protein and FAO modes after fermentation.In summary,Calliandra calothyrsus leaf powder (after or before fermentation) was a high-quality protein feed,and A+B+C group had the best effect.

Key words: solid-state fermentation; Calliandra calothyrsus leaf powder; nutritional value; tannin; amino acid composition

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