Emanuele S M, Horton G M, Baldwin J, Lee D, Mahana W H
Department of Animal Sciences, Rutgers University, New Brunswick, NJ 08903-0231.
J Dairy Sci. 1992 Nov;75(11):3084-90. doi: 10.3168/jds.S0022-0302(92)78071-0.
The effectiveness of a microbial hay inoculant in high moisture alfalfa hay was evaluated. Alfalfa (third cutting) was baled at 72% DM without or with inoculant and at 82% DM without inoculant during yr 1. In yr 2, alfalfa (second cutting) was baled at 75% DM without or with inoculant and at 82% DM without inoculant. Application rate of inoculant was 3.8 L/.98 tonne each year. At this application rate, 90 billion cfu were applied per .98 tonne of forage. Hays were core sampled at 0, 14, 30, and 60 d after baling to determine chemical composition. By d 30, all hays had DM content of 89%. In yr 2, 12 wether lambs were assigned to three treatments in a replicated 3 x 3 Latin square. Treatments were chopped, low moisture hay plus corn; chopped, inoculated high moisture hay plus corn; and chopped, high moisture hay plus corn. All diets contained 63% alfalfa hay, 35% ground corn, and 2% minerals and vitamins. In yr 1, inoculated and low moisture hays were not different in chemical composition but were higher in CP and lower in NDF than high moisture hay. Neither NDF nor CP were different among the three hays in yr 2. Average daily gain was not different on the three diets. The feed to gain ratio was lowest for the inoculated hay, intermediate for the low moisture hay, and highest for the high moisture hay diet. Daily gain and feed to gain ratio were not different for lambs fed the inoculated hay baled at 75% DM compared with lambs fed untreated hay baled at 82% DM.
对一种微生物干草接种剂在高水分苜蓿干草中的效果进行了评估。在第1年，将苜蓿（第三次刈割）在干物质含量为72%时不接种或接种接种剂打捆，以及在干物质含量为82%时不接种打捆。在第2年，将苜蓿（第二次刈割）在干物质含量为75%时不接种或接种接种剂打捆，以及在干物质含量为82%时不接种打捆。接种剂的施用量为每年3.8升/.98吨。按此施用量，每.98吨草料施用900亿个菌落形成单位。打捆后0、14、30和60天对干草进行取芯采样以测定化学成分。到第30天，所有干草的干物质含量均为89%。在第2年，将12只阉公羊分配到一个重复的3×3拉丁方设计的三种处理中。处理方式为：切碎的低水分干草加玉米；切碎的接种高水分干草加玉米；以及切碎的高水分干草加玉米。所有日粮均含有63%的苜蓿干草、35%的粉碎玉米以及2%的矿物质和维生素。在第1年，接种和低水分干草在化学成分上无差异，但粗蛋白含量高于高水分干草，中性洗涤纤维含量低于高水分干草。在第2年，三种干草的中性洗涤纤维和粗蛋白含量均无差异。三种日粮的平均日增重无差异。接种干草组的料重比最低，低水分干草组居中，高水分干草日粮组最高。与饲喂干物质含量为82%的未处理干草的羔羊相比，饲喂干物质含量为75%的接种干草的羔羊的日增重和料重比无差异。
