Milk Production, Reproductive Performance, Milk Somatic Cell Count and Disease Incidences in Alternative Housing Systems for Dairy Cows

2007 ◽  
Author(s):  
Egil Simensen ◽  
Camilla Kielland ◽  
Knut Egil Bøe ◽  
Lars Erik Ruud ◽  
Geir Næss
Keyword(s):  
Dairy Cows ◽  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Reproductive Performance ◽  
Somatic Cell Count ◽  
Alternative Housing ◽  
Housing Systems

1156 Effects of Omnigen-AF supplementation on body temperature, milk production, and somatic cell count in lactating dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 554-555
Author(s):  
T. Leiva ◽  
R. F. Cooke ◽  
A. P. Brandao ◽  
R. L. A. Cerri ◽  
R. O. Rodrigues ◽  
...  
Keyword(s):  
Body Temperature ◽  
Dairy Cows ◽  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Somatic Cell Count ◽  
Lactating Dairy Cows

scholarly journals A Connection Between Mastitis During Early Lactation and Reproductive Performance of Dairy Cows – A Review / Związek mastitis we wczesnej laktacji z użytkowością reprodukcyjną krów mlecznych – artykuł przeglądowy

2013 ◽  
Vol 13 (3) ◽  
pp. 435-448
Author(s):  
Jan Olechnowicz ◽  
Jędrzej M. Jaśkowski
Keyword(s):  
Dairy Cows ◽  
Somatic Cell ◽  
Cell Count ◽  
Reproductive Performance ◽  
Somatic Cell Count ◽  
Negative Impact ◽  
Body Condition Score ◽  
Condition Score ◽  
Fertility Traits ◽  
Genetic Standard Deviation

Abstract The objective of this study was to present a relationship between mastitis in the post-calving period and fertility traits of dairy cows. The threshold of 200,000 cells/ml for somatic cell count is used as a reference for healthy quarters of the cow’s udder. The genetic correlation between mastitis and somatic cell count is strong (from 0.7 to 0.8). Although heritability for fertility traits is low (from 0.01 to 0.02), the genetic standard deviation for mastitis varies from 1.2 to 7.0 percentage units, suggesting that genetic gain can be achieved by selecting for mastitis. Results of this study suggest that mastitis in the postpartum period can have a markedly negative impact on the reproductive performance of dairy cows. The synergistic effect of common conditions (somatic cell count, body condition score and lameness score) or other factors (e.g. heat stress, fertility management, the presence of repeat breeders) also lowers fertility of cows. Production of milk with fewer than 100,000 cells/ml leads to improved health and fertility in the cows.

Relationship between milk somatic cell count and postpartum ovarian cyclicity and fertility in dairy cows

2011 ◽  
Vol 59 (3) ◽  
pp. 349-362 ◽  
Author(s):  
Thinh Nguyen ◽  
Toshihiko Nakao ◽  
Gokarna Gautam ◽  
Long Su ◽  
Ranasinghe Ranasinghe ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Somatic Cell ◽  
Cell Count ◽  
Reproductive Performance ◽  
Somatic Cell Count ◽  
Post Partum ◽  
Dairy Herds ◽  
Ovarian Cyclicity ◽  
Relationship Of ◽  
The Relationship

The main objective of the study was to describe the relationship of high somatic cell count (SCC) with the incidence of abnormal postpartum resumption of ovarian cyclicity and reproductive performance in dairy cows. The factors influencing SCC were also investigated. Four hundred and forty-seven cows from six dairy herds in Japan were monitored for SCC and postpartum resumption of ovarian cyclicity. Cows with high SCC (200,000 to 500,000) had a higher incidence of prolonged luteal phase (P < 0.01) than cows with an SCC of 50,000 to 100,000. The high SCC cows (> 500,000) also showed a higher incidence of delayed first ovulation post partum than cows with an SCC ≤500,000 (P < 0.05) during the first month post partum. Cows with an SCC of 200,000 to 500,000 showed lower conception and pregnancy rates, and more days from calving to conception than cows with an SCC of less than 200,000 (P < 0.05). Cows in parity 5 or more had a higher incidence of high SCC than cows in the first and second parities (P < 0.05). It is concluded that cows with a high SCC have a higher incidence of abnormal postpartum resumption of ovarian cyclicity, leading to reduced reproductive performance.

scholarly journals The influence of blood and milk serum zinc concentration on milk somatic cell count in dairy cows

2013 ◽  
Vol 29 (4) ◽  
pp. 659-664
Author(s):  
I. Davidov ◽  
M. Radinovic ◽  
M. Erdeljan ◽  
Z. Kovacevic ◽  
Z. Jurakic ◽  
...  
Keyword(s):  
Blood Serum ◽  
Dairy Cows ◽  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Somatic Cell Count ◽  
Zinc Concentration ◽  
Serum Zinc ◽  
Subclinical Mastitis ◽  
Serum Zinc Concentration

The objective of this study was to evaluate the influence of blood and milk zinc concentration on somatic cell count, milk production and occurrence of subclinical mastitis cases. The study was performed on thirty Holstein cows approximate same body weight, ages 3 to 5 years, with equally milk production. Blood samples were taken after the morning milking from the caudal vein and milk from all four quarters was taken during morning milking. All samples of blood and milk were taken to determined zinc, using inductively coupled plasma mass spectrometry. 37.67% (11/30) cows have blood serum zinc concentration below 7?mol/l, and 63.33% or 19/30 cows have blood serum zinc concentration higher then 13?mol/l. Also 30% (9/30) cows have somatic cell count lower then 400.000/ml which indicate absence of subclinical mastitis, but 70% (21/30) cows have somatic cell count higher then 400.000/ml which indicate subclinical mastitis. According to all results in this research, zinc has very important influence on reducing subclinical mastitis and somatic cell count in milk of dairy cows.

Sign in / Sign up

Export Citation Format

Share Document