Chen Di, Zhao Xuan, Li Xiangying, Wang Jianmin, Wang Cunfang
College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China.
Anim Sci J. 2018 Sep;89(9):1355-1363. doi: 10.1111/asj.13062. Epub 2018 Jun 29.
Despite the global increasing demand for goat milk, no data exist on the nutrient potential of Laoshan goat milk and limited information exists on its composition according to lactation period. In this study, the measured indicators, including dry matter, protein, immunoglobulin, lactoferrin, fat, ash, lactose, calcium, titratable acidity and pH from partum to 261 days postpartum of Laoshan goat milk, followed the same law of change. There was a significant difference over the first 5 days postpartum, after which no significant difference was observed until days 225 postpartum. However, days 255 postpartum was like a turning point, after which their values showed either an increasing or decreasing trend. We concluded that the colostrum for Laoshan dairy goat was considered from days 1 to 5 postpartum and after 5 days it was as transitioned to milk when all measured parameters were according to the normal ranges as described in this study. This work provided updated information on the current nutritive characteristics of Laoshan goat milk, which may be of importance in the fields of milk production, food technology, and nutritional mutual replenishment.
尽管全球对山羊奶的需求不断增加，但关于崂山山羊奶的营养潜力尚无数据，且根据泌乳期对其成分的信息有限。在本研究中，崂山山羊奶从产后到产后261天的测量指标，包括干物质、蛋白质、免疫球蛋白、乳铁蛋白、脂肪、灰分、乳糖、钙、可滴定酸度和pH值，遵循相同的变化规律。产后前5天有显著差异，之后直到产后225天未观察到显著差异。然而，产后255天似乎是一个转折点，之后它们的值呈现出上升或下降趋势。我们得出结论，崂山奶山羊的初乳被认为是产后1至5天，5天后当所有测量参数都符合本研究中描述的正常范围时，它就转变为了奶。这项工作提供了关于崂山山羊奶当前营养特性的最新信息，这在牛奶生产、食品技术和营养互补领域可能具有重要意义。
