Influence of some environmental factors on body condition score and somatic cell count in Czech Holstein cows

2015 ◽  
Author(s):  
Ludek Stádník ◽  
Savas Atasever
Keyword(s):  
Environmental Factors ◽  
Somatic Cell ◽  
Cell Count ◽  
Body Condition ◽  
Somatic Cell Count ◽  
Body Condition Score ◽  
Holstein Cows ◽  
Factors Affecting ◽  
Condition Score ◽  
Calving Season

The objective of this study was to determine some environmental factors affecting body condition score (BCS) and somatic cell count (SCC) in Czech Holstein cows. A total of 278 primiparous cows were examined by BCS and SCC in four calving seasons, three years and six test days after calving. The results revealed no significant effect of calving season was found for both parameters. While year was not effective on SCC values, BCS mean of third year was significantly (P

Influence of somatic cell count and body condition score on reproductiontraits and milk composition of Czech Holstein cows

2016 ◽  
Author(s):  
Savas Atasever ◽  
Ludek Stádník
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Body Condition ◽  
Somatic Cell Count ◽  
Body Condition Score ◽  
Milk Composition ◽  
Holstein Cows ◽  
Composition Analysis ◽  
Protein Percentage ◽  
Condition Score

The objective of the present study was to investigate the effects of somatic cell count (SCC) and body condition score (BCS) on reproduction and milk composition characteristics in Czech Holstein cows. A total of 275 records of chosen cows was evaluated by milk composition, SCC, BCS and fertility traits. Infrared spectroscopic method was used for SCC test and an automatic device was used for milk composition analysis. Before statistical test, SCC data were transformed to log10 for normality and homogeneity of variances. BCS was performed using a 1-5 point scale and days from calving to first insemination (ICF), number of inseminations per conceptions (NIC) and days open (DO) were assessed as fertility parameters. To evaluate days in milk (DIM) on SCC and BCS, two groups were designed (group 1: cows in 1-69th day DIM and group 2: cows in 70-119th DIM). For testing BCS on chosen traits; cows with 2.50 £ BCS and cows with BCS ³ 2.75 were tested in two groups. All statistical work was applied by SPSS 17.0 at the 0.05 significance level. It was found that SCC elevated with high parities and cows with lower BCS had lower milk protein percentage. Cows with lower BCS had lower reproduction traits than those with higher BCS. Correlation coefficient between two markers was estimated as r= -0.181. Calculated means for the parameters could be assessed in reasonable thresholds. The study revealed that SCC played a marked role on protein percentage of milk, and BCS affected important reproductive characteristics of Czech Holstein cows.

The effects of calving season and parity on colostrum quality of Holstein cows

2016 ◽  
Author(s):  
Erdal Yayalak ◽  
Musa Yavuz ◽  
Serkan Özkaya
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
Winter Season ◽  
Dairy Farm ◽  
Holstein Cows ◽  
Spring Season ◽  
The Mean ◽  
Calving Season

The present study was conducted to investigate the effects of calving season (winter and spring) and parity (first and second parity) on colostrum quality. Colostrum of 42 Holstein cows raised at a private dairy farm was used in this experiment. Calving season and parity had no effects on major components of colostrum. However, somatic cell count (SCC) and the brightness of the colostrum (L*) values were affected by calving season (Pis less than 0.05). The mean of winter colostrum SCC was lower than the spring season (P is less than0.05). The brightness of the colostrum was found to be higher in winter season than in spring season (Pis less than 0.01). Colostrometer has been used to evaluate colostrum quality and Brix refractometer and colorimeter can also be used to assess colostrum quality.

scholarly journals Milk yield, periparturient diseases and body condition score as factors affecting the risk of fetal losses in high-yielding Holstein cows

2019 ◽  
Vol 17 (2) ◽  
pp. e0404
Author(s):  
Miguel Mellado ◽  
Ulises Macías-Cruz ◽  
Leonel Avendaño-Reyes ◽  
Francisco G. Véliz ◽  
Leticia Gaytán ◽  
...  
Keyword(s):  
Milk Yield ◽  
Body Condition ◽  
Body Condition Score ◽  
Fetal Loss ◽  
Holstein Cows ◽  
Factors Affecting ◽  
Retained Placenta ◽  
Hot Environment ◽  
Condition Score ◽  
Twin Pregnancies

The objective of this study was to assess various risk factors affecting fetal losses in high-yielding Holstein cows in a hot environment. In a retrospective observational study, 14,384 records from Holstein cows from a large highly technified dairy herd in northern Mexico were used. Logistic multivariate multiple-group response model indicated that fetal losses between 43 and 260 days of pregnancy were 23.8%. Dry periods >60 d were associated (p<0.05) with 0.8 (confidence interval CI=0.8–0.9) times lower incidence of fetal losses compared to cows with dry periods <60 d. Cows with body condition score (BCS) >3 at calving and 15 days postpartum had about half the risk of suffering fetal losses than cows with BCS <3.0. Cows with peak milk yield >38 kg were 5.5 times more likely to have a fetal loss than cows with peak milk yield <38 kg (36.9 vs. 9.6%; p<0.01). The risk of fetal loss increased with 305-d milk yield >9,000 kg (OR=2.1) compared with cows with milk yield <9,000 kg. Retained placenta was (p<0.05) associated with 1.2 (CI=1.1–1.4) times higher fetal losses than cows without this reproductive disorder. Cows suffering premature parturition had 1.2 (CI=1.0–1.4) greater (p<0.05) risk of suffering fetal losses than cows with normal parturition. Cows with twin pregnancies had significantly increased chances of losing their fetuses than cows with a single fetus (31.1 vs. 15.9 p<0.01). A bimodal distribution of fetal losses was observed with peaks around 50 and 220 days of pregnancy. It was concluded that in this particular hot environment fetal losses were associated with high milk yield, low body energy reserves at calving, reduced dry periods, occurrence of retained placenta, twin pregnancies and premature calving.

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.

scholarly journals Factors Affecting Mastitis Cases and the Correlations of Somatic Cell Count with Milk Production in Holstein Cows

2020 ◽  
Vol 8 (1) ◽  
pp. 171
Author(s):  
Savaş Atasever ◽  
Violetta Tóth ◽  
Edit Mikóné Jónás
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Production ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Holstein Cows ◽  
Factors Affecting ◽  
Daily Milk Yield ◽  
Production Losses ◽  
Daily Milk

The aim of this study was to determine the factors affecting mastitis cases and to estimate the correlations of somatic cell count (SCC) with milk yield in Holstein cows. The study was conducted in two private dairy farms in Hódmezõvásárhely, South-Hungary. A total of 882 Holstein cows were tested by SCC, fat and protein contents of milk monthly intervals. To test milk SCC and components, two groups were designed, and to examine effect of parity on first mastitis day (FMD) and total mastitis cases (TMC), four groups were divided. It was noted that higher SCC caused to higher TMC. While cows had higher protein content exposed to higher FMD and TMC, cows had lower daily milk yield (DMY) had higher values by mastitis case parameters. In parity evaluation, only primiparous cows had statistically lower TMC. The cows with lower SCC were found in advance in change of milk yield (CMY) up to 6.858±0.947 kg. A negative correlation coefficient was estimated between SCC and DMY. Finally, monitoring SCC of milk is offered to prevent milk production losses and new mastitis occurrences in the herds.

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