Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Environmental control technology, management, and intelligent equipment are critical components for modern intensive livestock and poultry farming, having great impacts on its biosecurity, animal environment, and product quality, which are considered as the mostly important issues for the sustainable development of animal husbandry. Focusing on three important areas of intelligent control of animal housing environment, intelligent identification of livestock and poultry health, and intelligent feeding management, taking thermal environment, air quality, and light environment as main factors in particular, this study technically analyzes the impact of housing environment on animals’ health and the state-of-the-art technical methods on environmental manipulation in the world. Also presented in the paper is the current status of intelligent identification technology of livestock and poultry health based on physiological, behavioral, sound, and individual automatic monitoring, the intelligent feeding management and techniques, as well as equipment, including precision feeding, mechanical manure cleaning, auto-collection of animal products, and comprehensive management of animal production information. Based on summary of existing issues and challenges, relevant suggestions on research and development in future are given. The paper aims at providing theoretical basis and technical support on the transformation, upgrading and sustainable development of China's livestock and poultry industry.
Subjects: Biology >> Zoology submitted time 2017-10-11 Cooperative journals: 《动物营养学报》
Abstract：为评估白酒糟酿酒酵母培养物在猪饲料中的应用价值，本试验在测定白酒糟酿酒酵母培养物中干物质、粗蛋白质、粗脂肪、粗灰分、粗纤维、氨基酸含量等营养成分的基础上，采用全收粪法测定猪对白酒糟酿酒酵母培养物中营养物质的全消化道表观消化率，并通过安装T型瘘管测定猪对白酒糟酿酒酵母培养物中氨基酸的回肠末端表观消化率。结果表明：白酒糟酿酒酵母培养物的水分、粗蛋白质、粗脂肪、粗灰分、粗纤维含量分别为8.34%、31.12%、5.00%、13.46%和11.00%，总能为19.53 MJ/kg，霉菌毒素含量远低于国家标准。猪对白酒糟酿酒酵母培养物中干物质、总能、粗蛋白质、粗脂肪、粗纤维和粗灰分的全消化道表观消化率分别为48.79%、38.33%、54.15%、82.94%、23.17%和20.29%，消化能为11.75 MJ/kg；猪对白酒糟酿酒酵母培养物中必需氨基酸和非必需氨基酸的回肠末端表观消化率的平均值分别为72.38%和69.37%，其中赖氨酸、甲硫氨酸的回肠末端表观消化率均超过80%。由此得出，白酒糟酿酒酵母培养物中氨基酸的吸收和利用率较高，可应用于猪饲料生产。
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