Musaad Abdelgadir, Faye Bernard, Nikhela Abdelmoneim Abu
Camel and Range Research Centre, P.O. Box 322, Al-Jouf, Sakaka, Saudi Arabia.
Trop Anim Health Prod. 2013 Apr;45(4):1039-46. doi: 10.1007/s11250-012-0331-x. Epub 2012 Dec 2.
Weekly milk records of 47 she-camels in a multibreed dairy camel herd were collected for over a period of 5 years. A total of 72 lactation curves were defined, and relationships with parity, calving season, lactation length, milk production level, following lactations, and dam weight were analyzed. Overall mean values were milk yield up to 12 months, 1,970 ± 790 l; lactation length, 12.5 months; persistency, 94.7 %; weekly peak yield, 50.7 l; monthly peak yield, 220 ± 90 l; and the number of weeks to reach peak yield, 28. The highest productivity was recorded in summer with a weekly mean of 48.2 ± 19.4 l, compared with 34.1 ± 16.3 l in winter. The highest average yield recorded was for camels at sixth parity, whereas the highest weekly peak was at eighth parity, and highest persistency at fifth parity. Camels that calved during the cold months (November to February) were most productives, with the highest persistency, peak yield, and longest lactation length. Four types of curves were identified corresponding to different parities and milk yield levels. Based on these data, specific models for camels are proposed.
在5年多的时间里，收集了一个多品种奶驼群中47头母驼的每周产奶记录。共定义了72条泌乳曲线，并分析了其与胎次、产犊季节、泌乳期长度、产奶水平、后续泌乳以及母驼体重之间的关系。总体平均值为：12个月时的产奶量为1970±790升；泌乳期长度为12.5个月；泌乳持续性为94.7%；每周产奶峰值为50.7升；每月产奶峰值为220±90升；达到产奶峰值的周数为28周。夏季的产奶效率最高，每周平均产奶量为48.2±19.4升，而冬季为34.1±16.3升。记录到的最高平均产奶量出现在第六胎的骆驼中，而每周产奶峰值最高出现在第八胎骆驼中，泌乳持续性最高出现在第五胎骆驼中。在寒冷月份（11月至2月）产犊的骆驼产奶量最高，具有最高的泌乳持续性、产奶峰值和最长的泌乳期。根据不同胎次和产奶水平确定了四种类型的曲线。基于这些数据，提出了奶驼的特定模型。
