Vispute Mayur M, Sharma Divya, Mandal Asit B, Rokade Jaydip J, Tyagi Praveen K, Yadav Ajit S
ICAR-Indian Veterinary Research Institute, Izatnagar, India.
ICAR-Central Avian Research Institute, Izatnagar, India.
J Anim Physiol Anim Nutr (Berl). 2019 Mar;103(2):525-533. doi: 10.1111/jpn.13052. Epub 2019 Jan 3.
The present study was carried out to study the effect of different doses of hemp seed alone or in combination with dill seed against antibiotic growth promoter on performance, serum biochemicals and gut health of broiler chickens over a period of 42 days. Total 192 broiler chicks were grouped randomly into six treatments and fed with basal diet (BD) along with different levels of seeds, viz., T (BD), T (BD + 0.2% HS), T (BD + 0.2% HS + 0.3 DS), T (BD + 0.3% HS) and T (BD + 0.3% HS + 0.3 DS) and T (BD + 0.025% Bacitracin Methylene Disalicylate-BMD). The performance traits like feed intake, body weight gain and feed conversion ratio (FCR) and carcass traits like cut-up parts, giblet and abdominal fat yield remained unaffected due to dietary treatments for overall trial period; however, the average feed intake in early phase (0-3 weeks) reduced significantly (p < 0.05) in treatment birds than both controls (T1 & T6). Serum protein concentration remained unchanged, whereas significant (p < 0.05) reduction in serum lipids like triglyceride, LDL and total cholesterol concentration was noticed due to dietary inclusion of seeds. Serum enzymes like AST and ALT concentrations depleted significantly (p < 0.05) treated groups, except at higher seed doses (T5); however, alkaline phosphatase levels were unaffected. Coliform count in caecum and jejunum reduced linearly (p < 0.01) due to seed inclusion, whereas dose-dependent proliferation of lactobacilli was evident (p < 0.01) in caecum and jejunum of treated birds. No effect was observed on the villus height and crypt depth of the jejunal mucosa. To conclude, dietary supplementation of hemp and dill seed could not affect the growth performance and carcass traits; however, it positively altered the serum lipid profile of the birds and improved gut health as well, thereby enhanced overall performance of broiler chickens.
本研究旨在探讨不同剂量的大麻籽单独或与莳萝籽联合使用对肉鸡生长性能、血清生化指标和肠道健康的影响，为期42天。总共192只肉仔鸡被随机分为6组，分别饲喂基础日粮（BD）以及不同水平的种子，即T1（BD）、T2（BD + 0.2%大麻籽）、T3（BD + 0.2%大麻籽 + 0.3%莳萝籽）、T4（BD + 0.3%大麻籽）、T5（BD + 0.3%大麻籽 + 0.3%莳萝籽）和T6（BD + 0.025%杆菌肽锌 - BMD）。在整个试验期内，日粮处理对采食量、体重增加和饲料转化率（FCR）等生产性能指标以及分割部位、内脏和腹脂产量等胴体性状没有影响；然而，与两个对照组（T1和T6）相比，处理组在早期阶段（0 - 3周）的平均采食量显著降低（p < 0.05）。血清蛋白浓度保持不变，而由于日粮中添加了种子，血清脂质如甘油三酯、低密度脂蛋白和总胆固醇浓度显著降低（p < 0.05）。除了较高种子剂量组（T5）外，处理组的血清酶如谷草转氨酶和谷丙转氨酶浓度显著降低（p < 0.05）；然而，碱性磷酸酶水平不受影响。由于添加了种子，盲肠和空肠中的大肠杆菌数量呈线性减少（p < 0.01），而在处理组鸡的盲肠和空肠中，乳酸菌的剂量依赖性增殖明显（p < 0.01）。对空肠黏膜的绒毛高度和隐窝深度没有观察到影响。总之，日粮中添加大麻籽和莳萝籽不会影响生长性能和胴体性状；然而，它积极改变了鸡的血清脂质谱，改善了肠道健康，从而提高了肉鸡的整体性能。
