| 膨化对实验犬粮营养成分影响的研究 |
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| 引用本文： | 李慧贤,常银莲,卓志勇,张海峰,史 良. 膨化对实验犬粮营养成分影响的研究[J]. 实验动物科学, 2019, 36(4): 51 |
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| 作者姓名： | 李慧贤 常银莲 卓志勇 张海峰 史 良 |
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| 摘 要： | 目的 犬是人类最早驯化的动物之一，20世纪40年代，犬开始作为实验动物用于研究，在生物医学中主要用于实验外科学、基础医学、药理、毒理学以及一些疾病研究中，对生物医学的发展具有重要意义。为实验犬提供稳定配方的标准化饲料，是提高实验科学性的重要环节。目前，实验犬粮的生产主要采用膨化工艺。本文则主要研究在特定膨化条件下，实验犬粮蛋白质、脂肪、氨基酸、维生素以及微量元素等指标检测值与配方值的差异情况。方法 依据《中国饲料成分及营养价值表》(第28版)提供的数据，计算实验犬粮配方中各营养成分配方值，然后将成品实验犬粮送至实验室检测实际值，将二者进行对比。结果 实验犬粮经过膨化后，脂肪损失6%，组氨酸、赖氨酸、蛋氨酸分别损失8%、6%、2%，维生素E、维生素B2、烟酸、胆碱、维生素B6损失率分别为29%、65%、46%、1%、81%。结论 在本次研究中设定的膨化参数条件下，实验犬粮中各营养素损失如结果所示。因膨化参数不同，对营养素的影响不同，因此，建议同行可根据实际生产情况适当调整日粮配方。
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| 关 键 词： | 实验动物 犬 犬粮 膨化 |
Effect of Puffing on Nutritional Components of Experimental Dogs |
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| Abstract: | Objective Dogs are one of the earliest domesticated animals of human beings. In the 1940a,dogs began to be used as experimental animals for research. They are mainly used in experimental surgery, basic medicine, pharmacology, toxicology and some diseases in biomedicine, which is of great significance to the development of biomedicine. Providing standardized formula feed for experimental dogs is an important step to improve the scientific nature of experiments. At present, puffing technology is used in the production of experimental dog food. This paper mainly studied the changes of protein, fat, amino acid, vitamin and trace elements in dog food before and after puffing. Method According to the Chinese Feed Composition and Nutrition Value Table (28th edition), the nutrient distribution formulas of experimental dog food were calculated, and then the finished experimental dog food was sent to the laboratory to test the actual value, and the two were compared. Result After puffing, fat loss was 6%, histidine, lysine, methionine loss was 8%, 6%, 2%, vitamin E, vitamin B2, nicotinic acid, choline, vitamin B6 loss rate was 29%, 65%, 46%, 1%, 81%, respectively. Conclusion Under the expansion parameters set in this study, the nutrient losses in the experimental dogs food are as shown in the result . The effect of extrusion parameters on nutrients is different. Therefore, it is suggested that peers can adjust dietary formulation appropriately according to actual production situation. |
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| Keywords: | laboratory animals dogs dog food puffing technology |
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