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Free Content Effect of Breed and Feeding Season on the Nutritive Quality of Goat's Milk

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Abstract:

Two-year-old Polish White Improved (30) and Polish Fawn Improved goats (25) were investigated. The animals were kept indoors throughout the year and fed ad libitum. Lactation in goats was 8 months long, from March to October. To determine the effects of breed and feeding season on the nutritive quality of milk, milk was collected once a month and analysed using the A4 method for the basic chemical composition, cholesterol level and the composition and profile of fatty acids. Average daily yield of milk was 2.20 kg in White Improved and 2.40 kg in Fawn Improved goats, with fat content of 3.28% and 3.52%, respectively. The milk of goats receiving winter feeds was characterized by a slightly higher concentration of cholesterol (9.60 and 11.20 mg/100 ml). Regardless of the breed, milk from the winter period had a significantly lower proportion of saturated acids (64.12% in White Improved, 73.62% in Fawn Improved) and a higher proportion of saturated acids (74.62% and 78.36%, respectively).

Keywords: CHOLESTEROL; FATTY ACIDS; GOATS; MILK

Document Type: Research Article

DOI: https://doi.org/10.3409/173491605775789209

Publication date: 2005-10-01

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  • Folia biologica is an international quarterly journal that publishes papers on the broad field of experimental zoology, nuclear and chromosome research, and also ultrastructural studies. All papers are subject to peer reviews. Indexed in: ISI Master Journal List, Current Contents, Polish Scientific Journals Contents. I.F. 0.667
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