Mako A A, Ikusika O O, Akinmoladun O F
Department of Agricultural Science, Tai Solarin University of Education, PMB 2811, Ijebu-Ode, Ogun State, Nigeria.
Department of Livestock and Pasture Science, Faculty of Science and Agriculture, University of Fort Hare, Private Bag X1314, Alice 5700, Eastern Cape, South Africa.
Vet Anim Sci. 2021 Nov 20;14:100220. doi: 10.1016/j.vas.2021.100220. eCollection 2021 Dec.
Animal feed shortages characterize the long dry season in most Sub-Saharan African countries. Studies exploring alternative feedstuffs with similar or complementary nutritional efficacy to the conventional ones are seriously canvassed. Therefore, this study aimed to evaluate the effect of feeding West African Dwarf (WAD) sheep with different combinations of guinea grass and ensiled based diets on their intake, haematology, and biochemical indices. A total of 30 growing female WAD sheep (BW =10.5 ± 0.92 kg; mean ± SD), 12-18 months of age were allocated to five dietary treatments containing different inclusion levels of ensiled (0%, 30%, 45%, 60% and 90%) in a trial that lasted for 90 days. Intakes were estimated daily and body weight changes taken weekly. Blood concentrations of haemoglobin, packed cell volume, white blood cells, differential white blood counts (lymphocytes, monocytes, neutrophils, eosinophils), red blood cells, total protein, albumin, globulin, creatinine and cholesterol were also determined. The total dry matter intake (DMI) increased ( < 0.05) with increasing inclusion levels of . While the feed conversion ratio decreased ( < 0.05), the final weight and average daily gain significantly increased ( < 0.05) with increasing levels ensiled . The red blood cell, creatinine, globulin, cholesterol, white blood cell and its differentials were not affected ( > 0.05) by the inclusion levels of . However, the total protein and albumin were influenced ( < 0.05) by inclusion levels of . The inclusion levels of up to 90% promote growth and were not harmful to the ewes.
动物饲料短缺是大多数撒哈拉以南非洲国家漫长旱季的特征。人们认真探讨了研究具有与传统饲料相似或互补营养功效的替代饲料的问题。因此，本研究旨在评估用几内亚草和青贮饲料的不同组合喂养西非矮种（WAD）绵羊对其采食量、血液学和生化指标的影响。总共30只12至18月龄的生长中的雌性WAD绵羊（体重=10.5±0.92千克；平均值±标准差）被分配到五种日粮处理组，这些处理组含有不同青贮饲料添加水平（0%、30%、45%、60%和90%），试验持续90天。每天估计采食量，每周记录体重变化。还测定了血红蛋白、红细胞压积、白细胞、白细胞分类计数（淋巴细胞、单核细胞、中性粒细胞、嗜酸性粒细胞）、红细胞、总蛋白、白蛋白、球蛋白、肌酐和胆固醇的血液浓度。随着青贮饲料添加水平的增加，总干物质摄入量（DMI）增加（P<0.05）。随着青贮饲料水平的增加，饲料转化率降低（P<0.05），最终体重和平均日增重显著增加（P<0.05）。红细胞、肌酐、球蛋白、胆固醇、白细胞及其分类不受青贮饲料添加水平的影响（P>0.05）。然而，总蛋白和白蛋白受青贮饲料添加水平的影响（P<0.05）。青贮饲料添加水平高达90%可促进生长，且对母羊无害。
