scholarly journals Milk Yield, Somatic Cell Count, and Udder Measurements in Holstein Cows at Different Lactation Number and Months

2015 ◽  
Vol 38 (2) ◽  
pp. 118-122 ◽  
Author(s):  
A Ceyhan ◽  
M Cinar ◽  
U Serbester
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Holstein Cows

scholarly journals The Use of Teat-End Hyperkeratosis to Predict Somatic Cell Count and Milk Quality of Holstein Cows Raised in Egypt

2021 ◽  
Vol 44 (2) ◽  
pp. 213-221
Author(s):  
S. Abdelghany ◽  
N. H. Fahim ◽  
F. Samir ◽  
M. A. Radwan
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Digital Camera ◽  
Holstein Cows ◽  
Simple Linear Regression ◽  
Milk Traits ◽  
Unit Increase

The study aimed to investigate the association between teat-end hyperkeratosis (THK) and somatic cell count (SCC) and to assess the effect of SCC on milk yield, fat, and protein percentages of Holstein cows. A total of 740 udder quarters of 185 Holstein cows kept in three commercial herds in Egypt were enrolled in the study from May to September 2019. Foremilk samples were collected from udder quarters for assessing milk SCC, fat, and protein percentages. On the same cows, a digital picture of each teat end orifice was taken with a digital camera. Cows’ teats were assessed for THK and classified into two different groups of hyperkeratosis; mild and severe THK. SCC was converted to five classes of somatic cell score (SCS). Simple linear regression was performed to determine the loss of milk yield, fat, and protein percentages. SCC was significantly affected by THK (p<0.0001). About 57% of teats were classified as mild THK and 43% as severe THK. The teats with severe THK recorded higher SCC in milk. It was observed that SCS had a significant effect on fat and protein percentages (p<0.0001). A similar trend was shown for the effect of SCS on milk yield (p<0.05), where the highest values of milk traits were obtained for the lowest SCS. The loss of milk was 220 g/day. Also, fat and protein percentages decreased by 0.11% and 0.08%, respectively, for each unit increase in SCS, from zero to four. In conclusion, severe THK can lead to high SCC, which negatively affects milk traits.

scholarly journals The effects of somatic cell count on milk yield and milk composition in Holstein cows

2019 ◽  
Vol 89 (2) ◽  
pp. 143-154 ◽  
Author(s):  
Ertuğrul Kul ◽  
◽  
Aziz Şahin ◽  
Savaş Atasever ◽  
Emre Uğurlutepe ◽  
...  
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Milk Composition ◽  
Holstein Cows

scholarly journals Effect of calf sex on some productive, reproductive and health traits in Holstein cows

2015 ◽  
Vol 13 (2) ◽  
pp. e0605 ◽  
Author(s):  
Arash Chegini ◽  
Navid Ghavi Hossein-Zadeh ◽  
Hossein Hosseini-Moghadam
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Test Procedure ◽  
Holstein Cows ◽  
Productive Life ◽  
Lactation Length ◽  
Sexed Semen ◽  
Fat Yield

<p>Records of Holstein cows from March 1992 to April 2008 from 194 large herds and comprising from 402,716 records for productive traits to 178,344 records of somatic cell count were used to study the effect of calf sex in different parities and calving season on the subsequent productive, reproductive and health traits in Holstein cows. T-test procedure of SAS software was used to investigate the effect of calf sex and season of calving on aforementioned traits. Cows with female calves had higher milk and fat yield, persistency of milk and fat yield and longer lactation length, while cows that gave birth to male calves had shorter calving interval and longer productive life. Also, cows with female calves had higher milk yield per day of lactation in the first two parities, but there was no difference in milk yield per day of lactation for parities ≥ 3. There was no relationship among mean somatic cell count and sex of born calf. Fall calves had the highest adjusted milk yield and milk yield per day of lactation, however, winter calves had the longest lactation lengthand productive life and the highest somatic cell count. Results from this study demonstrate that it seems necessary to consider the effect of calf sex on aforementioned traits when making decision to use sexed semen or conventional semen.</p>

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.

scholarly journals Effect of premilking teat sanitation on milk composition, somatic cell count and test day milk yield in Holstein cows

2017 ◽  
Author(s):  
Edit Mikóné Jónás ◽  
Savas Atasever ◽  
Erika Havranek
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Yield ◽  
Somatic Cell Count ◽  
Genetic Factors ◽  
Milk Composition ◽  
Holstein Cows ◽  
High Quality ◽  
Disinfectant Solution ◽  
Positive Correlations

The objective of the present study was to determine the efficacy of premilking teat sanitation applications on milk composition, somatic cell count (SCC) and test day milk yield (TDMY) in Holstein cows. The research was conducted in two private farms located in Hódmezõvásárhely, South- Hungary. In the first trial, only water and drying application (WD) was practiced to 791 cows and in the second trial, disinfectant solution and drying application (DD) was performed to 1418 cows. Fat (F), protein (P) and lactose (L) were tested as the milk parameters and SCC and TDMY records were also evaluated. To investigate the effects of non-genetic factors on the parameters, four parity and three days in milk groups were designed. L, SCC and TDMY were affected by parity in both applications, and P affected by DD (P less than 0.01). All traits were affected by DIM in both applications (P less than 0.05 or P less than 0.01). While positive correlations were estimated between F and P; F and SCC; P and SCC; L and TDMY; the negative correlations were determined between F and L; F and TDMY; P and L; P and TDMY; L and SCC; SCC and TDMY. The means of F, P and SCC were higher in DD, but L and TDMY were higher in WD (P less than 0.05). The study revealed that cleaning the udder using plenty of water and drying the teats with clean clothes are suggested to dairy owners as a preferential premilking application to obtain high quality milk

Sign in / Sign up

Export Citation Format

Share Document