Correlation between Milk Yield, Somatic Cell Count and Milk Quality in Dairy Farming

Abstract

This study investigated between milk yield and Somatic Cell Count, sampled from 3 different dairy enterprises. Chemical and microbiological parameters analyzed for the relation with milk yield. Milk samples have been collected from 10 dairy cows, two times per month during 1 year period. Bacteriological analyzes have been employed for milks. Milk yield data for each cow have been recorded in every sampling day. Depending on the logistic regretion analyses on the data collected from all enterprises; high total plate count and E.coli counts have negative effects on milk yield, but has been found significally important (p<0.05) only for the data of E.coli. counts. In group 1; somatic cell count and E.coli counts have negative effect on milk yield and only the data of E.coli has been found statistically important (p<0.05). In group 2; only the data related negative effect of E.coli counts on milk yield has been found as statistically important (p<0.05). The third group, total plate count has negative effect on milk yield. Regarding to the chemical analyses of fat in milk, non-fat dry matter, density and protein values have been detected in the enterprises 1, 2 and 3 as 2 According to the correlation analyses applied between milk yield and fat in milk, non fat-dry matter, protein and density in milk in all enterprises; there were significant correlation between non-fat dry matter and milk yield in enterprise 2 (p<0.05) and density and milk yield in enterprise 3 (p<0.01). The study contributes the existing literature, which the correlation between SCC and the microbiological milk quality has been compared, in order to analize the possible effects on the production of dairy products and the reflection for dairy industry.

Rapid Milk Somatic Cell Counting Based on a Customized Multichamber Chip

“…Udder infection is considered to be the most common cause of increased SCC in milk, which is mainly caused by pathogenic microorganisms. − SCC varies widely and is influenced by a variety of factors, such as infectious diseases, udder trauma, parturition, stage of lactation, environmental variability, and animal species . Milk somatic cell count reflects milk yield, quality, and health status of dairy cows, is an important indicator of milk cow udder health status, and also reflects the management status of the dairy industry development in a region or country . Therefore, rapid and accurate detection of milk somatic cell count is of great significance for ensuring milk quality and yield and monitoring cow udder health.…”

Assessment of Artificial Insemination and Influential Variables of Fertility in Cattle Using Negative Binomial Regression

“…A cow raised in a farm is expected to give the first birth at about 2-year-old and continues to give birth once in a year (Kaygısız et al, 2008;Titterington et al, 2015;Van Eetvelde et al, 2020). Many studies have been carried out on the milk yield and fertility criteria (Albarrán-Portillo and Pollott, 2013;Kaygısız et al, 2015;Berry et al, 2016). However, studies investigating the relationship between fertility and milk yield are very rare (Kumuk et al, 1999;Yıldız et al, 2008;Gürses et al, 2014).…”