Changes in chemical and mineral contents of Awassi ewes' milk during lactation


Sahan N., Say D. , Kacar A.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.29, ss.589-593, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 29 Konu: 3
  • Basım Tarihi: 2005
  • Dergi Adı: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Sayfa Sayıları: ss.589-593

Özet

This study aimed to determine the chemical composition and mineral contents of Awassi ewes' milk during lactation. Morning milks of 150 Awassi ewes were taken once a week during 18 weeks of lactation. Mean values obtained from analyses of the ewes' milk samples were 17.54%+/- 01.35 for dry matter; 6.61%+/- 1.33 for fat; 10.93%+/- 0.44 for non-fat dry matter; 5.68%+/- 0.48 for protein; 4.34%+/- 0.27 for lactose and 99.05 +/- 11.63 kcal/100 g for energy value; 0.149%+/- 0.008 for titratable acidity; 6.72 +/- 0.42 for pH; and 1.0334 +/- 0.001 g/cm(3) for specific gravity. The contents of calcium, phosphorus, potassium, magnesium and sodium of the samples were 395.2 +/- 97.58 mg/100 g, 138.7 +/- 22.38 mg/100 g, 119.9 +/- 36.54 mg/100 g, 19.5 +/- 1.65 mg/100 g, and 74.3 +/- 11.75 mg/100 g, respectively. Results of the statistical analyses indicated significant lactational effects on the contents of dry matter, fat, and sodium (P < 0.01) and energy value, pH, titratable acidity, and specific gravity (P < 0.05).