Emerue P C, Akinbola E T, Faniyi T O, Salem A Z M
Institute of Agricultural Research and Training, Moor Plantation, Ibadan, Nigeria.
Department of Crop and Animal Science, Faculty of Agriculture, Ajayi Crowther University, Oyo, Oyo State, Nigeria.
Trop Anim Health Prod. 2022 Dec 1;54(6):409. doi: 10.1007/s11250-022-03400-7.
This study was carried out to determine the haematological and serum biochemical effect of rams fed graded levels of kenaf (Hibiscus cannabinus L.) seed meal. In a 77-days feeding trial, sixteen west African dwarf rams, of 12 months old, were randomly allocated to four dietary treatments (4 animals per each), with different inclusion levels of kenaf seed meal as replacement with sorghum glume and cassava pulp, at 0 (K0), 15 (K15), 35 (K35) and 55 (K55) % respectively. Each animal was fed 5% of its body weight/head/day of the experimental diets and elephant grass with clean drinking water ad libitum. Two animals from each treatment were randomly selected and blood samples collected aseptically, via the jugular puncture for haematological and biochemical evaluation, at the termination of the experiment. The analysis of blood components at the end of the feeding trial revealed that packed cell volume, white blood cell and haemoglobin showed significant (P < 0.05) differences among the rams with packed cell volume, white blood cell, while the haemoglobin was significantly decreased in K55 (27.00%, 3200 × 10 µL and 8.95 g/dL respectively) than in K0, K15 and K35. There were also significant (P < 0.05) differences in all the serum biochemical analysis except in the albumin. It was concluded that kenaf seed meal can be inculcated in the diet of rams up to 35% without any deleterious effect on their haematology and serum biochemical characteristics. Feeding of kenaf seed meal above 35% inclusion level resulted in negative alteration of the white blood cells which could lead to the loss of their protective system, thereby preventing rapid and potent defence against infectious diseases.
本研究旨在确定饲喂不同水平洋麻（Hibiscus cannabinus L.）籽粕的公羊的血液学和血清生化效应。在一项为期77天的饲养试验中，将16只12月龄的西非矮种公羊随机分为4组日粮处理（每组4只），用不同水平的洋麻籽粕替代高粱麸和木薯渣，替代水平分别为0%（K0）、15%（K15）、35%（K35）和55%（K55）。每只动物每天按体重的5%饲喂实验日粮，并自由采食象草和清洁饮水。实验结束时，从每个处理中随机选取2只动物，通过颈静脉穿刺无菌采集血样，用于血液学和生化评估。饲养试验结束时的血液成分分析表明，红细胞压积、白细胞和血红蛋白在公羊之间存在显著（P < 0.05）差异，红细胞压积、白细胞有差异，而K55组的血红蛋白（分别为27.00%、3200×10⁶/µL和8.95 g/dL）显著低于K0、K15和K35组。除白蛋白外，所有血清生化分析也存在显著（P < 0.05）差异。得出的结论是，洋麻籽粕可添加到公羊日粮中，添加量高达35%时，对公羊的血液学和血清生化特性没有任何有害影响。洋麻籽粕添加水平超过35%会导致白细胞发生负面变化，这可能导致其保护系统丧失，从而无法快速有效地抵御传染病。
