Effect of the feeding system and the production season on the protein fraction content in milk
The objective of the present research was to analyse the protein fraction content in milk, with particular regard to whey proteins, in dependence on the cows’ feeding system (group 1 - extensive, 2 - semi-intensive, 3 - intensive) and production season (spring-summer and autumn-winter). Chemical ana...
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| Format: | Article |
| Language: | English |
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Croatian Dairy Union
2019-01-01
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| Series: | Mljekarstvo |
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| Online Access: | https://hrcak.srce.hr/file/319161 |
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| author | Jolanta Król Aneta Brodziak Witold Chabuz Zygmunt Litwińczuk Joanna Barłowska |
| author_facet | Jolanta Król Aneta Brodziak Witold Chabuz Zygmunt Litwińczuk Joanna Barłowska |
| author_sort | Jolanta Król |
| collection | DOAJ |
| description | The objective of the present research was to analyse the protein fraction content in milk, with particular regard to whey proteins, in dependence on the cows’ feeding system (group 1 - extensive, 2 - semi-intensive, 3 - intensive) and production season (spring-summer and autumn-winter). Chemical analysis of the fodder was the base for calculation of energy and protein coverage of nutritional dose. A total of 1,133 milk samples were evaluated (550 in winter and 583 in summer). The milk samples were examined for the somatic cell count (SCC), the basic chemical composition, casein and whey proteins: α-lactalbumin, β-lactoglobulin, bovine serum albumin (BSA), lactoferrin and lysozyme. Higher content of crude protein, including casein, was noticed in milk obtained from cows coming from semi-intensive and intensive farms. However, milk taken from cows fed according to the group 1, which was based on fodder from permanent grasslands, had the highest concentration of major whey proteins - both in the summer (pasture and hay) and winter (hay and haylage) seasons. With the increase of silage and industrial fodder in the feed ration, the content of whey proteins - mainly β-lactoglobulin and lactoferrin - decreased, which was confirmed by the obtained negative correlation coefficients. |
| format | Article |
| id | doaj-art-19c609edf29647cd98ecbd77f36208db |
| institution | DOAJ |
| issn | 0026-704X 1846-4025 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Croatian Dairy Union |
| record_format | Article |
| series | Mljekarstvo |
| spelling | doaj-art-19c609edf29647cd98ecbd77f36208db2025-08-20T03:17:52ZengCroatian Dairy UnionMljekarstvo0026-704X1846-40252019-01-016929810710.15567/mljekarstvo.2019.0202Effect of the feeding system and the production season on the protein fraction content in milkJolanta Król0Aneta Brodziak1Witold Chabuz2Zygmunt Litwińczuk3Joanna Barłowska4University of Life Sciences in Lublin, Department of Commodity Science and Processing of Raw Animal Materials, Akademicka 13, 20-950 Lublin, PolandUniversity of Life Sciences in Lublin, Laboratory for Organic Production of Food of Animal Origin, Akademicka 13, 20-950 Lublin, PolandUniversity of Life Sciences in Lublin, Sub-Department of Cattle Breeding and Genetic Resources Conservation, Akademicka 13, 20-950 Lublin, PolandUniversity of Life Sciences in Lublin, Sub-Department of Cattle Breeding and Genetic Resources Conservation, Akademicka 13, 20-950 Lublin, PolandUniversity of Life Sciences in Lublin, Department of Commodity Science and Processing of Raw Animal Materials, Akademicka 13, 20-950 Lublin, PolandThe objective of the present research was to analyse the protein fraction content in milk, with particular regard to whey proteins, in dependence on the cows’ feeding system (group 1 - extensive, 2 - semi-intensive, 3 - intensive) and production season (spring-summer and autumn-winter). Chemical analysis of the fodder was the base for calculation of energy and protein coverage of nutritional dose. A total of 1,133 milk samples were evaluated (550 in winter and 583 in summer). The milk samples were examined for the somatic cell count (SCC), the basic chemical composition, casein and whey proteins: α-lactalbumin, β-lactoglobulin, bovine serum albumin (BSA), lactoferrin and lysozyme. Higher content of crude protein, including casein, was noticed in milk obtained from cows coming from semi-intensive and intensive farms. However, milk taken from cows fed according to the group 1, which was based on fodder from permanent grasslands, had the highest concentration of major whey proteins - both in the summer (pasture and hay) and winter (hay and haylage) seasons. With the increase of silage and industrial fodder in the feed ration, the content of whey proteins - mainly β-lactoglobulin and lactoferrin - decreased, which was confirmed by the obtained negative correlation coefficients.https://hrcak.srce.hr/file/319161whey proteinsextensive systemintensive systemcorrelations |
| spellingShingle | Jolanta Król Aneta Brodziak Witold Chabuz Zygmunt Litwińczuk Joanna Barłowska Effect of the feeding system and the production season on the protein fraction content in milk Mljekarstvo whey proteins extensive system intensive system correlations |
| title | Effect of the feeding system and the production season on the protein fraction content in milk |
| title_full | Effect of the feeding system and the production season on the protein fraction content in milk |
| title_fullStr | Effect of the feeding system and the production season on the protein fraction content in milk |
| title_full_unstemmed | Effect of the feeding system and the production season on the protein fraction content in milk |
| title_short | Effect of the feeding system and the production season on the protein fraction content in milk |
| title_sort | effect of the feeding system and the production season on the protein fraction content in milk |
| topic | whey proteins extensive system intensive system correlations |
| url | https://hrcak.srce.hr/file/319161 |
| work_keys_str_mv | AT jolantakrol effectofthefeedingsystemandtheproductionseasonontheproteinfractioncontentinmilk AT anetabrodziak effectofthefeedingsystemandtheproductionseasonontheproteinfractioncontentinmilk AT witoldchabuz effectofthefeedingsystemandtheproductionseasonontheproteinfractioncontentinmilk AT zygmuntlitwinczuk effectofthefeedingsystemandtheproductionseasonontheproteinfractioncontentinmilk AT joannabarłowska effectofthefeedingsystemandtheproductionseasonontheproteinfractioncontentinmilk |