Department of Animal Production, Faculty of Agriculture, Jordan University of Science and Technology, P.O. BOX 3030, Irbid, 22110, Jordan.
National Center for Agricultural Research and Extension, Baqa'a, 19381, Jordan.
Trop Anim Health Prod. 2022 Oct 10;54(6):340. doi: 10.1007/s11250-022-03337-x.
An experiment was conducted to see how replacing soybean meal with chickpea grains (CHPE) affected the performance, milk production, digestibility, nitrogen (N) balance, and blood metabolites of Awassi ewes. Thirty Awassi ewes with an initial body weight of 53.2 ± 2.31 kg and aged between 4 and 5 years were selected and randomly assigned to different feeding treatments (10 ewes per diet). Dietary dry matter (DM) was (1) 0 g/kg CHPE (CON); (2) 150 g/kg CHPE (CHPE150); and (3) 300 g/kg CHPE (CHPE300). The costs of these diets were determined using current ingredient prices. The experiment lasted 9 weeks. During the trial, ewes and their lambs were kept in individual pens. Daily nutrient intake was monitored. Every 2 weeks, the body weight (BW), milk output, and composition of the ewes were measured. In comparison to the CON diet, adding the CHPE to the experimental diets lowered feed costs (US$) per ton by 11% for CHPE150 and 21% for CHPE300. The CHPE300 group had a lower (P < 0.05) consumption of neutral detergent fiber (NDF) than the CHPE150 group, while the CON group had the highest (P < 0.05) intake of NDF. The intake of ether extract (EE) (g/d) was higher (P < 0.05) in the ewes fed the CHPE300 compared to the ewes fed CHPE150, and it was lowest in ewes fed the CON diet. When the ewes were fed the CHPE300 and the CHPE150 diets, the total solids (g/kg) in each kg of milk produced per day was higher (P < 0.05) than when they were fed the CON diet. The cost per kg of milk produced by the ewes was lowered (P < 0.05) when the CHPE was added to their diets. When the ewes on the CHPE300 and the CHPE150 diets were compared to the ewes on the CON diet, crude protein (CP) digestibility was higher (P < 0.05). The EE digestibility was higher (P < 0.05) for the CHPE300 group, while the CHPE150 group had an intermediate outcome. The CHPE300 group had lower amounts of N in their feces and urine (P < 0.05) than the other groups. The retention of N (g/100 g) in the ewes fed the CHPE300, and the CHPE150 diets was higher (P < 0.05) than in the ewes fed the CON diet. As a result, the current research demonstrates that part of soybean meal and barley grain could be replaced with chickpeas in the diets of lactating Awassi ewes.
进行了一项实验，以观察用鹰嘴豆粒（CHPE）替代大豆粕对绵羊的生产性能、产奶量、消化率、氮（N）平衡和血液代谢物的影响。选择了 30 只初始体重为 53.2±2.31kg、年龄在 4 至 5 岁之间的阿瓦什绵羊，并随机分配到不同的饲养处理组（每组 10 只羊）。日粮干物质（DM）为：（1）0g/kg CHPE（CON）；（2）150g/kg CHPE（CHPE150）；（3）300g/kg CHPE（CHPE300）。这些日粮的成本是根据当前的原料价格确定的。实验持续了 9 周。试验期间，将绵羊及其羔羊单独关在围栏中。监测每日营养摄入量。每两周测量一次绵羊的体重（BW）、产奶量和组成。与 CON 日粮相比，在实验日粮中添加 CHPE 可使 CHPE150 日粮的饲料成本（美元/吨）降低 11%，CHPE300 日粮降低 21%。CHPE300 组的中性洗涤纤维（NDF）摄入量低于 CHPE150 组（P<0.05），而 CON 组的 NDF 摄入量最高（P<0.05）。CHPE300 组的乙醚提取物（EE）（g/d）摄入量高于 CHPE150 组（P<0.05），CON 组的 EE 摄入量最低。当绵羊采食 CHPE300 和 CHPE150 日粮时，每公斤产奶量中的总固体（g/kg）高于 CON 日粮（P<0.05）。当绵羊采食 CHPE 日粮时，每公斤产奶的成本降低（P<0.05）。与 CON 日粮相比，采食 CHPE300 和 CHPE150 日粮的绵羊的粗蛋白（CP）消化率更高（P<0.05）。CHPE300 组的 EE 消化率较高（P<0.05），而 CHPE150 组则处于中等水平。CHPE300 组的粪便和尿液中的氮含量较低（P<0.05）。采食 CHPE300 和 CHPE150 日粮的绵羊的氮保留量（g/100g）高于采食 CON 日粮的绵羊（P<0.05）。因此，本研究表明，在哺乳期阿瓦什绵羊的日粮中，可以用鹰嘴豆代替部分大豆粕和大麦。
