金针菇菌糠饲料对湖羊生长性能的影响OA

To address the problems of resource waste and environmental pollution caused by spent mushroom substrate during edible mushroom production,Flammulina filiformis spent mushroom substrate was used as the raw material to develop a novel biologi-cal feed suitable for ruminant,and its effect on the growth performance of Hu sheep was systematically investigated,aiming to promote the high-value and resource-oriented utilization of spent mushroom substrate.A single-factor experimental design was employed with 4 treatments,including basal formulated feed(the control),high-energy spent mushroom substrate feed,high-protein spent mushroom substrate feed,and fermented spent mushroom substrate feed.The effects of these treatments on growth performance,body size index,harvest performance,and blood biochemical index of Hu sheep were determined to evaluate the effectiveness and safety of spent mush-room substrate feed.Results showed that after 58 d of fattening,the average daily gain of Hu sheep fed fermented spent mushroom sub-strate feed reached 0.27 kg/d,which was significantly increased by 35.0%compared with the basal formulated feed treatment.Carcass weight reached 18.30 kg,representing increases of 3.10%and 6.71%compared with the high-energy spent mushroom substrate feed treatment and the basal formulated feed treatment,respectively,and a significant increase of 8.61%compared with the high-protein spent mushroom substrate feed treatment.Rib meat thickness(GR value)reached 12.76 mm,which was higher than that of the other treatment groups.Blood biochemical index of Hu sheep in all spent mushroom substrate feed treatments remained within the normal range,indicating that spent mushroom substrate feed was safe and non-toxic to the growth of Hu sheep.In conclusion,F.filiformis spent mushroom substrate is a safe and effective feed ingredient for ruminant,and partial substitution of energy feed after biological fermentation can significantly improve the fattening performance of Hu sheep.