Study of Milkability and Its Relation With Milk Yield and Somatic Cell in Mediterranean Italian Water Buffalo

被引:24
作者
Boselli, Carlo [1 ]
De Marchi, Massimo [2 ]
Costa, Angela [2 ]
Borghese, Antonio [3 ]
机构
[1] Expt Zooprophylact Inst Lazio & Toscana Mariano A, Rome, Italy
[2] Univ Padua, Dept Agron Food Nat Resources Anim & Environm DAF, Legnaro, Italy
[3] Anim Prod Res Inst, Gen Secretary Int Buffalo Federat, Rome, Italy
关键词
milk flow curves; milk yield; milking time; economic approach; somatic cells; TEAT ANATOMY; FLOW TRAITS; ENVIRONMENTAL-FACTORS; MECHANICAL MILKING; UDDER; QUARTER; COUNT; COWS; MANAGEMENT; LACTATION;
D O I
10.3389/fvets.2020.00432
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Milkability is defined as the ability of an animal to give a regular, complete, and rapid milk secretion by the mammary gland in response to a proper milking technique. The aim of the present study was to investigate the relationship of milkability pattern with milk yield and somatic cell score in buffaloes. Milk yield and milkability can be observed through the milk flow profiles recorded by an electronic milkmeter (Lactocorder). A total of 2,288 milk flow curves of Mediterranean Italian buffaloes were used for one-way analysis of variance, and eight milk emission patterns were studied. The most represented milk flow curve was type 3 (27.32%), followed by type 6 (17.79%) characterized by a very long plateau phase. The less represented curve was type 1 (4.41%) characterized by long lag time and low peak flow rate. According to analysis of variance, milk yield ranged from 2.21 to 5.22 kg per milking for types 1 and 6, respectively, whereas the peak flow rate was minimum (0.50 kg/min) and maximum (1.73 kg/min) for types 1 and 4, respectively. The total milking time was on average 11.29 +/- 3.68 min; lag time and milk emission time averaged 2.19 +/- 2.34 min and 4.30 +/- 2.33 min, respectively. The 12.5% (n= 286) of total curves were classified as bimodal and 60 of these were found in type 4. Based on literature, type 4 curves are representative of very short teat canals and very high milk flow. Average somatic cell score was 3.63 +/- 1.67 units, with maximum least-squares mean found for type 1 and minimum for type 6. Buffaloes showing curves of type 5 and 6 were characterized by the greatest milk yield at milking, lowest somatic cell score, and lowest milking time. Results of the present study evidenced that such traits could be used in the dairy buffaloes as indicators to improve udder health and milkability.
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页数:7
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