Zehra GÜLER, Mahmut KESKİN, Tuğrul MASATÇIOĞLU, Sabri GÜL

Effects of Breed and Lactation Period on Some Characteristics and Free Fatty Acid Composition of Raw Milk from Damascus Goats and German Fawn x Hair Goat B1 Crossbreds

The effects of breed and period of lactation on milk composition were investigated. For this purpose, 8 crossbred (3/4 German fawn 1/4 Hair goat) and 10 Damascus goats were kept under identical management conditions. Lactation period affected milk yield and milk composition in both goat breeds. Milk yield, lactation duration, and mean solid and fat values showed differences between the breeds. The mean values of total solid and fat of milk during lactation were 13.82 ± 0.294% and 4.55 ± 0.223% for the crossbreds, and 12.90 ± 0.179% and 4.02 ± 0.142% for Damascus goats, respectively. Although the percentages of short-chain free fatty acids (FFAs) (C4 to C8) in the milk of both breeds did not change during lactation, the other FFAs (C10-C18:3) significantly varied (P

Anahtar Kelimeler:

Damascus goat, German Fawn x hair goat B1 crossbred, milk composition, free fatty acids, lactation period

Effects of Breed and Lactation Period on Some Characteristics and Free Fatty Acid Composition of Raw Milk from Damascus Goats and German Fawn x Hair Goat B1 Crossbreds

Keywords:

Damascus goat, German Fawn x hair goat B1 crossbred, milk composition, free fatty acids, lactation period,

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ICRPMA: International Regulation for Milk Recording in Goats. International Committee for Recording the Productivity of Milk Animals. Italy. 1990.
Turkish Standards Institution (TSI): Raw cow milk. TS 1018. Ankara, Turkey. 1981.
Salih, A.M.A., Anderson, M., Tuckley, B.: The determination of short- and long-chain free fatty acids in milk. J. Dairy Res., 1977; 44: 601-605.
Deeth, H.C., Fitz-Gerald, C.H., Snow, A.J.: A gas chromatographic method for the quantitative determination of free fatty acids in milk and milk products. New Zeal. J. Dairy Sci. Technol., 1983; 18: 13-20.
Kinneer, P.R., Gray, C.D.: SPSS for Windows. Department of Psychology. University of Aberdeen, UK. 1994.
Voutsinas, L., Pappas, C., Katsiari, M.: The composition of Alpine goat milk during lactation in Greece. J. Dairy Res., 1990; 57: 41- 51.
Prasad, H., Sengar, O.P.S.: Milk yield and composition of the Barbari goat breed and its crosses with Jamunapari, Beetal and Black Bengal. Small Ruminant Res., 2002; 45: 79-83. 16.Al Khouri, F.
: The encyclopedia of goat breeds in the Arab
countries. The Arab Center for the Studies of Arid Zones and Dry
Lands (ACSAD). Department of the Study of Animal Wealth,
Conservation of Biodiversity, and Environments in the Arab
countries. ACSAD/AS/P., 1996; 158: 152-161. 17.Mourad, M.
: Estimation of repeatability of milk yield and
reproductive traits of Alpine goats under an intensive system of
production in Egypt. Small Ruminant Res., 2001; 42: 1-4.
Crepaldi, P., Corti, M., Cicogna, M.: Factors affecting milk production and prolificacy of Alpine goats in Lombardy (Italy). Small Ruminant Res., 1999; 32: 83-88.
Finley, C.M., Thompson, J.R., Bradford, G.E.: Age-parity-season adjustment factors for milk and fat yields of dairy goats. J. Dairy Sci., 1984; 67: 1868-1872.
Hadjipanayiotou, M.
: Replacement of barley grain for corn in
concentrate diets fed to dairy Damascus goats at different
frequencies. Small Ruminant Res., 2004; 51: 229-233.
Alonso, L., Fontecha, J., Lozada, L., Fraga, M.J., Juárez, M.: Fatty acid composition of caprine milk: major, branched-chain, and trans fatty acids. J. Dairy Sci., 1999; 82: 878-884. 22.Gönç, S.
: Changes of fatty acids in fat from White German goats
milk during lactation period. Associate Professorship Thesis. Ege
University, İzmir, Turkey. 1977.
Ramos, M., Juárez, M.: Chromatographic, electrophoretic and immunological methods for detecting mixtures of milks from different species. Bull. Int. Dairy Fed., 1986; 202: 175-187.
Wijesundera, C., Shen, Z., Wales, W.J., Dalley, D.E.: Fatty acid composition, including trans fatty acids, of milk from grazing dairy cows offered grain and/or fibre supplements in early lactation. Aust. J. Dairy Technol., 2001; 56: 113.
Kondyli, E., Katsiari, M.C.: Fatty acid composition of raw caprine milk of a native Greek breed during lactation. Int. J. Dairy Technol., 2002; 55: 57-60.
Chilliard, Y., Ferlay, A., Rouel, J., Lamberet, G.: A review of nutritional and physiological factors affecting goat milk lipid synthesis and lipolysis. J. Dairy Sci., 2003; 86: 1751-1770.
Chávarri, F., Bustamante, M.A., Santisteban, A., Virto, M., Barrón, L.J.R., de Renobales, M.: Changes in free fatty acids during ripening of Idiazabal cheese manufactured at different times of the year. J. Dairy Sci., 1999; 82: 885-890.
Calderon, I., De Peters, E.J., Smith, N. E., Franke, A.A.: Composition of goat’s milk: changes within milking and effects of a high concentrate diet. J. Dairy Sci., 1984; 67: 1905-1911.
Cartier, P., Chilliard, Y.: Spontaneous lipolysis in bovine milk: combined effects of nine characteristics in native milk. J. Dairy Sci., 1990; 73: 1178-1186.
Attaie, R., Richter, R.L., Reine, A.H.: Low molecular weight branched-chain and n-chain fatty acids in caprine and bovine colostrum. J. Dairy Sci., 1993: 76: 62-69.