Fiore Enrico, Giambelluca Sonia, Morgante Massimo, Contiero Barbara, Mazzotta Elisa, Vecchio Domenico, Vazzana Irene, Rossi Pasquale, Arfuso Francesca, Piccione Giuseppe, Gianesella Matteo
Department of Animal Medicine, Productions and Health (MAPS), University of Padua, Padua, Italy.
National Reference Centre on Water Buffalo Farming and Productions Hygiene and Technologies, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Salerno (SA), Italy.
Anim Sci J. 2017 Dec;88(12):2025-2032. doi: 10.1111/asj.12872. Epub 2017 Aug 4.
In this study changes in hematochemical parameters, milk composition and yield were investigated in buffaloes during the transition period. A total of 93 buffaloes 113.9 ± 8.03 months old and 535 ± 50 kg average body weight were used. Parity was recorded, blood samples were collected from 80 days pre-partum until 70 days post-partum; milk samples were collected from 5 days to 70 days post-partum. On serum samples, the values of non-esterified fatty acids, β-hydroxybutyrate, glucose, cholesterol, triglycerides, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyltransferase, urea, total proteins were evaluated. On milk, percentage of fat, protein and lactose, along with the somatic cell count (SCC), milk yield and daily milk production (DMP) were assessed. The peripartum period significantly (P ≤ 0.01) influenced all studied parameters with the exception of glucose. Milk fat percentage showed decreasing trend from 10 until 40 days post-partum; DMP significantly (P ≤ 0.01) increased from 1 day post-partum until 40 days post-partum. Milk yield significantly (P ≤ 0.01) decreased in animals over the sixth lactation. Our results confirmed the importance of transit period in buffaloes. Blood parameters and milk composition alterations are crucial to predict the energy balance status of buffaloes in order to improve their management and feed intake during the transition period.
在本研究中，对水牛围产期血液生化参数、乳成分及产奶量的变化进行了调查。共使用了93头水牛，年龄为113.9±8.03月龄，平均体重为535±50千克。记录胎次，在产前80天至产后70天采集血样；在产后5天至70天采集乳样。检测血清样本中游离脂肪酸、β-羟丁酸、葡萄糖、胆固醇、甘油三酯、天冬氨酸转氨酶、丙氨酸转氨酶、γ-谷氨酰转移酶、尿素、总蛋白的值。检测乳样中脂肪、蛋白质和乳糖的百分比，以及体细胞计数（SCC）、产奶量和日均产奶量（DMP）。围产期除葡萄糖外，对所有研究参数均有显著影响（P≤0.01）。乳脂肪百分比在产后10天至40天呈下降趋势；日均产奶量在产后1天至40天显著增加（P≤0.01）。第六胎及以上胎次的动物产奶量显著下降（P≤0.01）。我们的结果证实了水牛围产期的重要性。血液参数和乳成分的改变对于预测水牛的能量平衡状态至关重要，以便在围产期改善其管理和采食量。
