Results 221 to 230 of about 98,308 (251)

Association between hygiene scores and somatic cell scores in dairy cattle

Journal of the American Veterinary Medical Association, 2005
Abstract Objective—To develop a simple system for scoring hygiene in dairy cattle and determine whether hygiene scores were associated with individual cow somatic cell scores (SCSs). Design—Observational study. Animals—1,191 cows.
Jeffrey K, Reneau, Anthony J, Seykora, Bradley J, Heins, Marcia I, Endres, Ralph J, Farnsworth, Russell F, Bey   +5 more
openaire   +2 more sources

Factors influencing somatic cell score in Swiss dairy production systems

Schweizer Archiv für Tierheilkunde, 2004
The aim of this study was to analyse the influence of fixed effects on somatic cell score (SCS) in Swiss dairy production. Monthly milk recording results were investigated against the background of changing housing conditions from tie-stall barns to loose housing systems.
J C, Bielfeldt, R, Badertscher, K H, Tölle, J, Krieter   +3 more
openaire   +2 more sources

Effects of intramammary infections on somatic cell score and milk yield in Sarda sheep

New Zealand Veterinary Journal, 2011
To evaluate the effects of intramammary infections (IMI) on somatic cell score (SCS) and milk yield in dairy ewes.Monthly milk samples were collected from a flock of 202 Sarda sheep, over a period of 7 months, for bacteriological culture and measurement of somatic cell counts (SCC). During the same period, milk yield was measured daily using electronic
C. Cuccuru, M. Meloni, E. Sala, L. Scaccabarozzi, C. Locatelli, P. Moroni, V. Bronzo   +6 more
openaire   +3 more sources

Evaluation of models for somatic cell score lactation patterns in Holsteins

Livestock Production Science, 2000
Abstract Milk somatic cell score (SCS) typically reaches a minimum early in lactation and then rises. Nonlinear mixed effects models were used to describe this trajectory while accounting for between and within-cow variation. A total of 2387 SCS records from 217 Holsteins were analyzed.
Sandra L. Rodriguez-Zas, Daniel Gianola, George E. Shook   +2 more
openaire   +1 more source

An Approximate Bayesian Analysis of Somatic Cell Score Curves in Holsteins

Acta Agriculturae Scandinavica, Section A - Animal Science, 2000
Somatic cell score (SCS) decreases to a minimum at around 60 days postpartum and then increases until the end of lactation. This pattern was described with three non-linear mixed effects models. Parameters of the models were linear in fixed and random (cow) effects.
Sandra L. Rodriguez-Zas, Daniel Gianola, George E. Shook   +2 more
openaire   +1 more source

Genomic regions associated with somatic cell score in dairy cattle

2011
The EU project RobustMilk combines unique data from research dairy herds located in four European countries. The dataset contains detailed recordings on somatic cell score (SCS), with up to 50 SCS test-days per cow per lactation. Variation in SCS can be due to genetic and environmental factors.
S. Wijga, J. W. M. Bastiaansen, E. Wall, E. Strandberg, Y. de Haas, L. Giblin, H. Bovenhuis   +6 more
openaire   +1 more source

Effects of Somatic Cell Score on Milk Traits in Polish Holstein‐Friesian Cows

Animal Science Journal
ABSTRACT The objective of this study was to investigate the effect of somatic cell score (SCS) on milk yield; fat, protein, and lactose percentage; and fat‐to‐protein ratio (FPR). The study dataset contained 41,593 records collected for 2709 Polish Holstein‐Friesian cows from three herds. A total of eight classes were created based on
openaire   +2 more sources

Genetic parameters for reproductive traits and somatic cell score in U.S. dairy goats

Tropical Animal Health and Production
There are no studies regarding the estimation of genetic parameters and genetic trends for reproductive traits and somatic cells in goats. Their knowledge allows optimization of selection schemes. The objective of this study was to estimate genetic parameters and genetic and phenotypic trends for age at first kidding (AFK), kidding interval (KIN) and ...
Estefania Aguirre-Arroyo, Vielka J. Castañeda-Bustos, Alma A. Lechuga-Arana, Abner J. Gutiérrez-Chávez, César A. Ángel-Sahagún, José A. Hernández-Marín, Mauricio Valencia-Posadas   +6 more
openaire   +2 more sources

Genetic parameters for somatic cell score in Croatian Holstein cattle

2011
Somatic cell score is an important indicator of udder health and the prevalence of clinical and subclinical mastitis in dairy herds. The objective of this study was to estimate genetic parameters for somatic cell score in the Croatian Holstein cattle. Data consisted of 656, 272 test-day records for 45, 953 Holstein cows.
Špehar, Marija, Ivkić, Zdenko, Gorjanc, Gregor, Bulić, Vesna, Mijić, Pero, Barać, Zdravko   +5 more
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Appendix: Conversion of Somatic Cell Count to Somatic Cell Score

Veterinary Clinics of North America: Food Animal Practice, 1993
openaire   +1 more source