Somatic cell count and milk neutrophil viability of dairy heifers with specific CXCR1 genotypes following experimental intramammary infection with Staphylococcus chromogenes originating from milk

2015 ◽  
Vol 204 (3) ◽  
pp. 322-326 ◽  
Author(s):  
Joren Verbeke ◽  
Kristine Piccart ◽  
Sofie Piepers ◽  
Mario Van Poucke ◽  
Luc Peelman ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Intramammary Infection ◽  
Dairy Heifers

scholarly journals Udder Morphometry and Its Relationship with Intramammary Infections and Somatic Cell Count in Serrana Goats

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1534
Author(s):  
Gisele Margatho ◽  
Hélder Quintas ◽  
Vicente Rodríguez-Estévez ◽  
João Simões
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Coagulase Negative Staphylococci ◽  
Breeding Programs ◽  
Healthy Group ◽  
Intramammary Infections ◽  
Intramammary Infection ◽  
Degree Of Separation ◽  
Separation Parameters

The external morphological traits of the mammary gland, and their relationships with somatic cell count (SCC) and the presence of intramammary infection (IMI), were studied in 30 Serrana goats, Transmontano ecotype. Globular-shaped udders were the most predominant, with slightly separated and symmetrical halves, presenting some degree of suspension. Funnel-shaped teats were the most prevalent shape with an opening of 120° to 160° degrees. Significant differences were observed between healthy group and the coagulase negative staphylococci (CNS)-infected group for udder cleft, teat perimeter and distance between teats parameters; and between healthy group and CNS or Staphylococcus aureus groups for degree of separation, teat shape and udder shape (p < 0.05). The udder shape, symmetry, degree of suspension and degree of separation parameters showed to be different depending on SCC (p < 0.05). The udder perimeter and udder depth traits showed differences between the lowest and the middle SCC group. We concluded that bifurcated pendular udders, with vertical loose teats and located close to each other, are more likely to have IMI, and have the highest SCC. The inclusion in breeding programs of certain mammary conformation traits would not only help to improve milk production, but would also decrease the susceptibility to IMI of the herd.

Effect of milking machine factors on the somatic cell count of milk from cows free of intramammary infection: III. Pulsator rate

1983 ◽  
Vol 50 (2) ◽  
pp. 149-152 ◽  
Author(s):  
George R. Olney ◽  
George W. Scott
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Latin Square ◽  
Intramammary Infections ◽  
Intramammary Infection ◽  
Milking Machine

SummaryThe effect of pulsator rates on the somatic cell count of milk from cows free of intramammary infections was determined. Four pulsator rates ranging from 30 to 120 cycles/min were compared in a Latin square design with 20 cows being milked at each of the 4 pulsator rates for periods of 19 d. Somatic cell count was not affected by any of the pulsator rates and it is concluded that varying pulsator rates will not cause stress or irritation that will lead to an increase in somatic cell count in the absence of mastitis infections.

scholarly journals Association Between Somatic Cell Count in Early Lactation and Culling of Dairy Heifers Using Cox Frailty Models

2005 ◽  
Vol 88 (2) ◽  
pp. 560-568 ◽  
Author(s):  
S. De Vliegher ◽  
H.W. Barkema ◽  
G. Opsomer ◽  
A. de Kruif ◽  
L. Duchateau
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Frailty Models ◽  
Early Lactation ◽  
Dairy Heifers
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