China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (4): 1520-1529.doi: 10.16431/j.cnki.1671-7236.2024.04.020

• Nutrition and Feed • Previous Articles    

Evaluation of Nutritional Value of Fungus Bran in Jilin Province Based on in vitro Gas Production Method

DU Yunlong1, PAN Jinshi1, FENG Xin1, LUAN Jiaming1, YANG Dongxu1, FENG Jian1,2, JIN Xijiu1,2, GENG Chunyin1,2   

  1. 1. College of Agriculture, Yanbian University, Yanji 133000, China;
    2. Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China
  • Received:2023-09-06 Published:2024-03-27

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Abstract: 【Objective】 The purpose of this experiment was to evaluate the nutritional value of common fungus bran in Jilin province by in vitro gas production experiment and the ruminal degradation rate at 48 h experiment.【Method】 The single factor experiment design was used,and different fungus bran (Pleurotus citrinopileatus(Y1),Lentinula edodes(X1),Pleurotus ostreatus(P),Auricularia auricula(M), Morchella esculenta(Y2),Hohenbuehelia serotina(Y3),Pleurotus eryngii (X2) and Pleurotus nebrodensis (B)) were used as fermentation substrates.The nutritional value of fungus bran was comprehensively analyzed according to gas production,gas production parameters,fermentation parameters and the ruminal degradation rate of nutrient at 48 h,combined with membership function.【Result】 ①At the end of the 48 h fermentation,the gas production of Lentinula edodes fungus bran was not significantly different from Pleurotus nebrodensis and Pleurotus ostreatus fungus bran (P＞0.05),and was significantly higher than other groups (P＜0.05).②The theoretical maximum gas production of Auricularia auricula and Morchella esculenta fungus bran was significantly lower than that of other fungus bran groups (P＜0.05),the gas production rate of fungus bran was not significantly different among all groups (P＞0.05).③The ammoniacal nitrogen (NH3-N) contents of Lentinula edodes,Pleurotus citrinopileatus,Pleurotus nebrodensis and Pleurotus ostreatus fungus bran were significantly lower than the other groups (P＜0.05),the total volatile fatty acids (TVFA) and acetic acid contents of Lentinula edodes and Pleurotus ostreatus fungus bran were significantly higher than the other groups (P＜0.05),the propionic acid content of Lentinula edodes fungus bran was not significantly different from that of Pleurotus ostreatus,Hohenbuehelia serotina and Pleurotus eryngii fungus bran (P＞0.05),but was significantly higher than the other groups (P＜0.05).④The ruminal degradation rates at 48 h of dry matter in Lentinula edodes and Pleurotus ostreatus fungus bran were significantly higher than the other groups (P＜0.05),the crude protein ruminal degradation rates at 48 h of Pleurotus ostreatus,Pleurotus eryngii,Pleurotus nebrodensis fungus bran were not significantly different from Lentinula edodes fungus bran (P＞0.05),but were significantly higher than the other groups (P＜0.05).The neutral detergent fiber ruminal degradation rate at 48 h and the acid detergent fiber ruminal degradation rate at 48 h of each fungus bran group was relatively low.⑤According to the analysis of membership function,the comprehensive value of Lentinula edodes fungus bran＞ Pleurotus ostreatus fungus bran＞ Pleurotus nebrodensis fungus bran＞ Pleurotus eryngii fungus bran＞ Pleurotus citrinopileatus fungus bran＞ Hohenbuehelia serotina fungus bran＞ Morchella esculenta fungus bran＞ Auricularia auricula fungus bran.【Conclusion】 There were significant differences in the in vitro gas fermentation effects of various types of fungus bran in Jilin province.Except for the Auricularia auricula and Morchella esculenta fungus bran with low comprehensive scores,other fungus bran had the potential to be used as unconventional feed resources.

Key words: fungus bran; in vitro gas production; ruminal degradation rate at 48 h; membership function

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