SOMATIC-CELL TYPES IN GOATS MILK IN RELATION TO TOTAL CELL COUNT, STAGE AND NUMBER OF LACTATION

被引:27
作者
ROTA, AM
GONZALO, C
RODRIGUEZ, PL
ROJAS, AI
MARTIN, L
TOVAR, JJ
机构
[1] Departamento Zootecnia, Facultad Veterinaria, Universidad Extremadura, Cáceres
[2] Departamento Producción Animal, Facultad Veterinaria, Léon
关键词
GOAT; MILK; SOMATIC CELL COUNT; LEUKOCYTE;
D O I
10.1016/0921-4488(93)90041-F
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Change in cell concentration and types of cells through lactation was studied in milk of 100 goats of the Verata breed (25 each in 1st, 2nd, 3rd and 4th lactations), with machine milking. The degree of participation of each cell type was analysed: (a) during 210 days of lactation; (b) as a function of number of lactations (1st to 4th); and (c) in relation to total cell count. Average percentages of the various cell types in milk of all animals were: 63.0% for polymorphonucleates, 16.2% macrophages, 7.2% lymphocytes, 13.0% remainder. Through the lactation the polymorphonucleates increased from 45.8% to 70.3%, while the rest of the cell types decreased. Polymorphonucleates increased from 51.5% (in the 1st lactation) to 69.3% (in the 4th lactation), and macrophages decreased (20.0% to 14.4%), as did lymphocytes (12.5% to 4.7%) and degenerated cells (16.3% to 13.0%). Correlation coefficients reached statistical significance in all cases.
引用
收藏
页码:89 / 98
页数:10
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