Dipartimento di Scienze delle Produzioni Animali-Facoltà di Agraria-Università degli Studi della Basilicata, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy.
J Dairy Sci. 2012 Jun;95(6):2910-5. doi: 10.3168/jds.2011-5232.
The aim of this research was to study the influence of lactation stage and foaling season on some qualitative aspects of milk in South Italian jenny rearing. Milk samples were collected monthly from 23 jennies, that foaled in 2 different periods: spring and summer. On milk, the following parameters were measured: pH and titratable acidity; protein, fat, lactose, dry matter, and ash contents; and somatic cell count. Analysis of variance showed the effect of foaling season and of lactation stage. Milk production was highest in summer at 30 d and 60 d (1.58 and 1.78 L, respectively), and in spring at 120 d (1.25 L). The total protein content was highest in summer lactation at 30 d and 90 d (14.8 and 13.9 g/L). Lactose, dry matter, and ash contents (g/L) were highest in summer lactation at 30 d (54.0, 78.1, and 5.0 respectively). Jenny milk was shown to be poor in protein and fat and rich in lactose. Producing jenny milk could be an interesting, profitable, and alternative activity for farmers, mainly in southern marginal areas.
本研究旨在研究哺乳期和产驹季节对意大利南部母驴牛奶某些定性方面的影响。从 23 头母驴中每月采集一次奶样，这些母驴在 2 个不同的时期产驹：春季和夏季。对牛奶进行了以下参数的测量：pH 值和滴定酸度；蛋白质、脂肪、乳糖、干物质和灰分含量；以及体细胞计数。方差分析显示了产驹季节和哺乳期的影响。在 30 天和 60 天（分别为 1.58 和 1.78 L）以及在 120 天（1.25 L）时，夏季的产奶量最高。总蛋白含量在夏季哺乳期的 30 天和 90 天（14.8 和 13.9 g/L）最高。乳糖、干物质和灰分含量（g/L）在夏季哺乳期的 30 天最高（分别为 54.0、78.1 和 5.0）。母驴奶的蛋白质和脂肪含量较低，乳糖含量较高。生产母驴奶可能是农民一种有趣、有利可图且替代的活动，主要在南部边缘地区。
