The effect of diets supplemented with Coriandrum sativum seeds on carcass performance, immune system, blood metabolites, rumen parameters and meat quality of lambs

ABSTRACT. A trial was conducted to investigate the effects of dietary Coriandrum sativum seeds on carcass performance, immune system, blood metabolites, rumen parameters and meat quality of Lambs. 16 Sanjabi lambs of 27 ± 5.1 kg during post-weaning (97 d of age) period were randomly selected. Four diets including 0, 1, 3, and 5% coriander seeds, replaced by Alfa alfa in the diet, were considered. A 30:70 alfalfa hay: concentrate diet for a period of time (97 to 187 d of age) was used. The results showed that feed intake was significantly increased by adding coriander seeds, linearly. There was no significant difference for apparent digestibility of crude protein, crude fat, neutral and acidic detergent fiber, crude ash, rumen fluid pH and ammonia nitrogen at 0, 2 and 4 h after feeding, Meat dry matter, ash, crude protein and fat, and the meat’s fatty acid profile (p > 0.05). Dietary coriander seeds had a significant effect on neutrophils, lymphocytes, monocytes and eosinophil’s (in days 7 and 14 of trial) and blood metabolites at the middle of trial. Obtained results suggested that supplementation of coriander seed may have limited effects on nutrient digestibility, ruminal parameters, meat quality, blood cells and metabolites.

摘要。本试验旨在研究日粮中添加芫荽（Coriandrum sativum）籽对羔羊屠宰性能、免疫系统、血液代谢物、瘤胃参数及肉品质的影响。试验选取16只体重为27±5.1kg的断奶后（日龄97天）桑加比羔羊，随机分组。试验设置四种日粮，分别以0%、1%、3%、5%的芫荽籽替代日粮中的苜蓿。试验期为羔羊日龄97至187天，所有受试羔羊均饲喂苜蓿干草与精料比例为30:70的基础日粮。结果表明，添加芫荽籽可线性显著提高羔羊采食量。饲喂后0、2、4小时的瘤胃液pH、氨氮含量，粗蛋白质、粗脂肪、中性洗涤纤维（neutral detergent fiber）、酸性洗涤纤维（acidic detergent fiber）及粗灰分的表观消化率，以及肉样的干物质、灰分、粗蛋白质、粗脂肪含量与脂肪酸组成均无显著差异（p>0.05）。日粮中添加芫荽籽对试验第7天和第14天的中性粒细胞、淋巴细胞、单核细胞及嗜酸性粒细胞，以及试验中期的血液代谢物均具有显著影响。本试验结果提示，日粮添加芫荽籽对养分表观消化率、瘤胃参数、肉品质、血液细胞及代谢物的影响较为有限。