Variation in fatty acid composition of ewes' colostrum and mature milk fat |
| |
| Authors: | Eva Pavlíková Jaroslav Blaško Renáta Górová Gabriela Addová Róbert Kubinec Milan Margetín Ladislav Soják |
| |
| Affiliation: | 1. Institute of Chemistry, Faculty of Natural Sciences, Comenius University, Mlynská dolina, SK-842 15 Bratislava, Slovak Republic;2. Animal Production Research Centre Nitra, Hlohovecká 2, SK-949 92 Lu?ianky, Slovak Republic;1. School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland;2. Poznan University of Life Sciences, Department of Small Mammals Breeding and Raw Materials of Animal Origin, Z?otniki, 62-002 Suchy Las, Poland;3. Warsaw University of Life Sciences, Department of Animal Breeding, 02-787 Warsaw, Poland;4. Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Department of Animal Sciences, Jastrz?biec, 05-552 Magdalenka, Poland;1. Department of Livestock and Pasture Science, Faculty of Science and Agriculture, University of Fort Hare, P Bag X1314, Alice 5700, South Africa;2. Food Science Division, Microbial Biochemical and Food Biotechnology, PO Box/339, Bloemfontein 9300, South Africa;1. UCD, School of Agriculture and Food Science, University College Dublin, Lyons Research Farm, Celbridge, Co. Kildare, W23 ENY2, Ireland;2. Animal & Grassland Research and Innovation Centre, Teagasc Athenry, Co. Galway, H65 R718, Ireland;1. College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, China;2. National Engineering Research Center for Gelatin-based TCM, Dong-E E-Jiao Co., Ltd, 78 E-Jiao Street, Donge County, 252201, Shandong Province, China;3. College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China;1. Dipartimento di Scienze Veterinarie, Università di Pisa, Pisa 56100, Italy; Centro Interdipartimentale di Ricerca Nutraceutica e Alimentazione per la Salute, Pisa 56124, Italy;2. Centro di Ricerche Agro-Ambientali Enrico Avanzi, San Piero a Grado, Pisa 56122, Italy;3. Bolsista Da Capes (Proc. No. 88888.021980/2013-00), Instituto Federal de Educação, Ciência e Tecnologia Do Rio Grande Do Sul, Rodovia RS 135, km 25, Distrito Eng. Luiz Englert, Sertão, RS, Brazil;1. Consiglio per la ricerca in agricoltura e l’analisi dell’economia agraria, CREA-FLC, Via A. Lombardo 11- Lodi, Italy;2. Sciex Italia, Via Cappuccini, 6- Milano, Italy |
| |
| Abstract: | Temporal content variations of approximately 70 C4–C24 fatty acids (FA) in colostrum and milk of ewes consuming winter diet were determined by gas chromatography. The content of monounsaturated, polyunsaturated and straight-chain saturated FA 14:0–16:0 in colostrum was higher whereas the content of 4:0–12:0, 18:0 and branched-chain saturated FA 15:0–17:0 was lower than that in mature milk. The effect of ewe breed on the FA profiles was not significant. The composition of FA changed most significantly 1–2 days after lambing in agreement with the time schedule of colostrum formation. Nevertheless, the content of FA further successively changed up to approximately the 6th day of lactation, whereas further changes up to the 60th day of lactation were smaller. This is consistent with the recommendation that ewes' milk is suitable for human consumption after six-to-eight days of lactation. The higher contents of palmitic and myristic acids in colostrum compared with mature milk suggest that FA composition in colostrum matches the changing needs of the growing lambs. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
