To find an effective method for ensiling peanut vine （PV）, fermentation characteristics and nutritional values of PV silage and the mixture of PV with corn stover （CS） silage in a ratio of 1 ： 1 fresh weight, pre...To find an effective method for ensiling peanut vine （PV）, fermentation characteristics and nutritional values of PV silage and the mixture of PV with corn stover （CS） silage in a ratio of 1 ： 1 fresh weight, prepared by adding lactic acid bacteria （LAB）, 10% wheat bran （WB） and LAB＋WB at ensiling were evaluated in 2009 and 2010. The fermentation qualities of PV silage ensiled with the LAB and WB additives were improved compared with those of the control （PV ensiled alone）. However, the pH did not decline to the critical level of 4.2, and the nutritional values of the silage were not protected against losses in the LAB and WB addition silages. Ensiling PV in mixture with CS generated optimal moisture content and buffering capacity （BC） of ensiled materials. After adding the LAB and WB additives to mixture silage, especially adding LAB＋WB, the fermentation qualities and nutritional values of the mixture silage were improved significantly （P〈0.05）, and the Flieg＇s score reached to 99. The result suggested that it is a feasible method to ensile the mixed materials of PV with CS by adding LAB and high concentration of water soluble-carbohydrate materials for providing a good fermentation quality of PV silage.展开更多
The present study investigated whether replacing dietary rice straw with peanut vine(PEV)and Broussonetia papyrifera silage(BPS)reduces the use of soybean meal and explored its effects on the growth performance,blood ...The present study investigated whether replacing dietary rice straw with peanut vine(PEV)and Broussonetia papyrifera silage(BPS)reduces the use of soybean meal and explored its effects on the growth performance,blood biochemical indicators,serum metabolomics,and meat quality of fattening bulls.Forty-five Simmental crossbred bulls(initial body weight=484.29±8.49 kg)were randomly allotted into three dietary treatment groups(n=15):(1)CON,5%rice straw(DM basis);(2)PEV,5%peanut vine(DM basis);and(3)BPS,5%B.papyrifera silage(DM basis).The remaining roughage for all three treatment groups was supplemented with 25%corn silage(DM basis).The experiment lasted for 123 d,with the first 14 d serving as an adaptive period.Throughout the experiment,dietary BPS decreased the average daily dry matter intake(P<0.001)and feed cost(P<0.001).Serum metabolomics analysis showed that PEV affected the phenylalanine,tyrosine,and tryptophan biosynthesis pathways(P=0.021)and lysine degradation pathway(P=0.042),whereas BPS affected the phenylalanine,tyrosine and tryptophan biosynthesis pathways(P=0.004),lysine degradation pathway(P=0.012),and serotonergic synapse pathway(P<0.001).Regarding meat quality,the redness(P=0.025)and hue angle values(P<0.001)of the longissimus dorsi muscle were lower in the BPS group than in the CON and PEV groups.The yellowness of the longissimus dorsi muscle was lower in the BPS group than in the PEV group(P=0.024),and the shear force was lower in the PEV group than in the BPS group(P=0.014).However,lysine content in beef was higher in the BPS group than in the CON group(P=0.005).In conclusion,replacing rice straw with PEV and BPS reduced the use of soybean meal but had no adverse effects on growth performance.BPS affected the amino acid metabolism of bulls,thus decreasing feed intake and increasing the lysine content in meat.The PEV group showed better meat quality than the BPS group.展开更多
试验旨在探究吉花21、吉花25、吉花32这3种花生秧的营养价值,筛选其适宜的贮存方式。对收获的3种花生秧分别进行不同水分条件下的单一贮存与混合菌剂贮存处理,测定其营养成分与发酵品质,初步筛选出12组代表性样品;进一步利用体外发酵试...试验旨在探究吉花21、吉花25、吉花32这3种花生秧的营养价值,筛选其适宜的贮存方式。对收获的3种花生秧分别进行不同水分条件下的单一贮存与混合菌剂贮存处理,测定其营养成分与发酵品质,初步筛选出12组代表性样品;进一步利用体外发酵试验,评估所选样品在瘤胃中的降解特性。结果显示,在吉花21中,混贮菌剂发酵55%水分处理组(21-混菌55%)的干物质(DM)和粗脂肪(EE)含量显著高于其他组(P<0.05),酸性洗涤纤维(ADF)、中性洗涤纤维(NDF)和丙酸(PA)含量显著低于其他组(P<0.05),48 h干物质降解率(DMD)和粗蛋白降解率(CPD)均最高;在吉花25中,混贮菌剂发酵60%水分处理组(25-混菌60%)EE含量和48 h CPD显著高于其他组(P<0.05),粗蛋白(CP)含量和DMD最高,ADF含量显著低于其他组(P<0.05);在吉花32中,混贮菌剂发酵60%水分处理组(32-混菌60%)CP含量显著高于其他组(P<0.05),4~48 h的DMD和CPD最高。研究表明,采用21-混菌55%、25-混菌60%和32-混菌60%这3种贮存方式处理的花生秧具备作为优质粗饲料的开发潜力。展开更多
基金funded by the National Key Technology Research and Development Program of China(2009BADA6B06)
文摘To find an effective method for ensiling peanut vine （PV）, fermentation characteristics and nutritional values of PV silage and the mixture of PV with corn stover （CS） silage in a ratio of 1 ： 1 fresh weight, prepared by adding lactic acid bacteria （LAB）, 10% wheat bran （WB） and LAB＋WB at ensiling were evaluated in 2009 and 2010. The fermentation qualities of PV silage ensiled with the LAB and WB additives were improved compared with those of the control （PV ensiled alone）. However, the pH did not decline to the critical level of 4.2, and the nutritional values of the silage were not protected against losses in the LAB and WB addition silages. Ensiling PV in mixture with CS generated optimal moisture content and buffering capacity （BC） of ensiled materials. After adding the LAB and WB additives to mixture silage, especially adding LAB＋WB, the fermentation qualities and nutritional values of the mixture silage were improved significantly （P〈0.05）, and the Flieg＇s score reached to 99. The result suggested that it is a feasible method to ensile the mixed materials of PV with CS by adding LAB and high concentration of water soluble-carbohydrate materials for providing a good fermentation quality of PV silage.
基金supported by grants from the National Key Research and Development Program of China, China (2022YFA1304200)
文摘The present study investigated whether replacing dietary rice straw with peanut vine(PEV)and Broussonetia papyrifera silage(BPS)reduces the use of soybean meal and explored its effects on the growth performance,blood biochemical indicators,serum metabolomics,and meat quality of fattening bulls.Forty-five Simmental crossbred bulls(initial body weight=484.29±8.49 kg)were randomly allotted into three dietary treatment groups(n=15):(1)CON,5%rice straw(DM basis);(2)PEV,5%peanut vine(DM basis);and(3)BPS,5%B.papyrifera silage(DM basis).The remaining roughage for all three treatment groups was supplemented with 25%corn silage(DM basis).The experiment lasted for 123 d,with the first 14 d serving as an adaptive period.Throughout the experiment,dietary BPS decreased the average daily dry matter intake(P<0.001)and feed cost(P<0.001).Serum metabolomics analysis showed that PEV affected the phenylalanine,tyrosine,and tryptophan biosynthesis pathways(P=0.021)and lysine degradation pathway(P=0.042),whereas BPS affected the phenylalanine,tyrosine and tryptophan biosynthesis pathways(P=0.004),lysine degradation pathway(P=0.012),and serotonergic synapse pathway(P<0.001).Regarding meat quality,the redness(P=0.025)and hue angle values(P<0.001)of the longissimus dorsi muscle were lower in the BPS group than in the CON and PEV groups.The yellowness of the longissimus dorsi muscle was lower in the BPS group than in the PEV group(P=0.024),and the shear force was lower in the PEV group than in the BPS group(P=0.014).However,lysine content in beef was higher in the BPS group than in the CON group(P=0.005).In conclusion,replacing rice straw with PEV and BPS reduced the use of soybean meal but had no adverse effects on growth performance.BPS affected the amino acid metabolism of bulls,thus decreasing feed intake and increasing the lysine content in meat.The PEV group showed better meat quality than the BPS group.
文摘试验旨在探究吉花21、吉花25、吉花32这3种花生秧的营养价值,筛选其适宜的贮存方式。对收获的3种花生秧分别进行不同水分条件下的单一贮存与混合菌剂贮存处理,测定其营养成分与发酵品质,初步筛选出12组代表性样品;进一步利用体外发酵试验,评估所选样品在瘤胃中的降解特性。结果显示,在吉花21中,混贮菌剂发酵55%水分处理组(21-混菌55%)的干物质(DM)和粗脂肪(EE)含量显著高于其他组(P<0.05),酸性洗涤纤维(ADF)、中性洗涤纤维(NDF)和丙酸(PA)含量显著低于其他组(P<0.05),48 h干物质降解率(DMD)和粗蛋白降解率(CPD)均最高;在吉花25中,混贮菌剂发酵60%水分处理组(25-混菌60%)EE含量和48 h CPD显著高于其他组(P<0.05),粗蛋白(CP)含量和DMD最高,ADF含量显著低于其他组(P<0.05);在吉花32中,混贮菌剂发酵60%水分处理组(32-混菌60%)CP含量显著高于其他组(P<0.05),4~48 h的DMD和CPD最高。研究表明,采用21-混菌55%、25-混菌60%和32-混菌60%这3种贮存方式处理的花生秧具备作为优质粗饲料的开发潜力。
