Kruk, Z.A., Malau-Aduli, A.E.O., Thomson, A.M., Siebert, B.D., Pitchford, W.S., and Bottema, C.D.K. (1997) Do breed and season affect ß-carotene and the fatty acid composition of muscle phospholipids in cattle? In: Proceedings of the 43rd International Congress of Meat Science and Technology (C32) pp. 314-315. From: ICOMST 1997: 43rd International Congress of Meat Science and Technology, 27 July - 1 August 1997, Auckland, New Zealand.

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Abstract

The purpose of this study was to determine the relationship between beta-carotene concentration and fatty acid profiles in meat of cattle sampled in two seasons. Jersey and Limousin cows were chosen for the experiment. Muscle samples from the Longissimus dorsi were collected and the beta-carotene concentration and fatty acid composition of the phospholipid fraction determined. Results demonstrated that compared to Limousin, Jersey had a higher concentration of beta-carotene, C16:1, C18:1(w-9) and total monounsaturated fatty acids, and a lower concentration of of the C18:2, C20:4, C24:1 and total polyunsaturated fatty acids.The beta-carotene concentration and most of the fatty acid profiles were influenced by season. Observed breed by season interactions in C18:2, C18:3(w-3), C20:4 and C24:1 fatty acids demonstrated that there are different seasonal influences in these two breeds. Significant residual correlations between beta-carotene concentration and C16:1, C18:0, C20:4 and C24:1 fatty acids may indicate a direct metabolic relationship between these components. Since it is known that beta-carotene can protect fatty acids against oxidation and influences sterol metabolism, the observed relationship may influence membrane function, meat fat colour, meat colour or possibly the storage of meat.

Item ID:	54968
Item Type:	Conference Item (Presentation)
Related URLs:	https://meatscience.org/events-education...
Date Deposited:	27 Nov 2018 03:54
FoR Codes:	07 AGRICULTURAL AND VETERINARY SCIENCES > 0702 Animal Production > 070204 Animal Nutrition @ 50% 07 AGRICULTURAL AND VETERINARY SCIENCES > 0702 Animal Production > 070201 Animal Breeding @ 50%
SEO Codes:	83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8303 Livestock Raising > 830301 Beef Cattle @ 100%
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