Abstract
The study investigated the impact of seasonal variations on the components of cow milk in Jalalabad City, Afghanistan. A total of 80 milk samples were collected from six different local points within the city from January to August 2023. The research spanned two distinct periods: winter (January-February-March) and summer (June-July-August). During the winter, cows were fed hay, while in the summer; they grazed on green grass in pastures. Analysis revealed significant differences in fat content and titratableacidity between the winter and summer periods, with both factors being significant at the p<0.05 level according to paired t-test results. The study concluded that seasonal variations significantly affected the protein content, total solids, fat, and titratableacidity, with significance levels of p<0.05 and p<0.01, respectively.
Publisher
Universe Publishing Group - UniversePG
Reference33 articles.
1. Barron, L., Labastida, E., & Renobales, M. (2001). Seasonal changes in the composition of bulk raw ewe’s milk used for Idiazabal cheese manufacture. Inter Dairy J., 11, 771-778. https://doi.org/10.1016/S0958-6946(01)00120-0
2. Carroll, S. M., DePeters, E. J., & Capps, V. A. (2006). Milk composition of Holstein, Jersey, and Brown Swiss cows in response to increasing levels of dietary fat. Animal feed science and technology, 131(3-4), 451-473.
3. 10.1016/j.anifeedsci.2006.06.019
4. Casati, M. R., Cappa, V., & Folli, G. (1998). Effects of the season on milk yield and on some milk characteristics in cows. SCIENZA E TECNICA LATTIERO CASEARIA, 49, 7-28. https://agris.fao.org/search/en/providers/122556/records/64775f92bc45d9ecdbc2d401
5. Fedele, V., Rubino, R., & Morone, G. (2005). Seasonal evolution of volatile compounds content and aromatic profile in milk and cheese from grazing goat. Small Ruminant Research, 59(2-3), 273-279. https://doi.org/10.1016/j.smallrumres.2005.05.013