Study of seasonal dynamics of blood metabolic profile and Milk Urea Nitrogen (MUN) Level of Cows with reproductive disorders

Karapetkovska-Hristova, Vesna and Tomovska, Julijana and Bonev, Georgi and Dimitrov, Stanimir and Ahmad, M. Ayaz (2014) Study of seasonal dynamics of blood metabolic profile and Milk Urea Nitrogen (MUN) Level of Cows with reproductive disorders. Journal of Asian Academic Research Journal of Multidisciplinary, (AARJMD), 1 (22). pp. 246-260. ISSN 2319 - 2801

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Variations in the components of blood chemistry could be indicative of metabolic or nutritional imbalances in dairy cows. In the recent work an attempt has been made in understanding ofthe seasonal variation of the blood metabolic profile and milk urea nitrogen (MUN) level at individual Holstein Friesian cows with reproductive disorders in one dairy farm in R.Macedonia.Blood and milk samples were collected from 149 dairy cows with reproductive disorders, every monthup to one year between spring /2012and spring /2013.The cows were held in an intensive farm breeding premises and never turned out to graze. Their ration consisted of ordinary hay, silage, haulage and concentrates with energy and protein supplements.The obtained values of sera, total proteins, blood urea nitrogen (BUN), ASAT, ALAT, calcium, phosphorus, potassium, sodium and chlorine, as well as milk urea nitrogen level in different seasons were assessed and also all these values were found in good agreement with the results obtained by other workers in Dairy Science. All the values were determined in term of mean or average values with standard deviation (mean ± S. D), and the aanalysis of Variance (ANOVA) test, was applied to determine the seasonal effects during the experimental period (12 months) and the “P” values of <0.05 were considered statistically significant.
Key words: seasons, blood profile, milk urea nitrogen (MUN), Holstein –Friesian dairy cows.

Item Type: Article
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Animal and diary science
Divisions: Faculty of Biotechnical Sciences
Depositing User: prof. d-r Vesna Karapetkovska - Hristova
Date Deposited: 10 Apr 2020 23:09
Last Modified: 10 Apr 2020 23:09

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