Chaneges in inorganic substances and colour values of awassi sheep colostrum during ten days after parturition

Bu çalışmada, Avasi koyum kolostrumundaki 20 elementin konsantrasyonunun belirlenmesi, ICP-OES kullanılarak başarıyla gerçekleştirilmiştir. Koyun koloştrumunun element içerikleri ve renk değerleri doğum sonrası 10 gün süresince önemli bir şekilde değişmiştir (P < 0.05, P < 0.01, P < 0.001). Deneme süresi sonunda makro elementlerden Ca en yüksek ortalama konsantrasyona sahip olmuştur. Bu elementi P, K, Na, S ve Mg izlemiştir. Minör elementlerden B, Si, Zn, Se, Fe, Cu ve Al kolostrumda en fazla belirlenmiştir. Doğum sonrası periyotda kolostrumun beyazlık indeksi (L-değeri) artarken, yeşillik (-a değeri) ve sarılık (b-değeri) azalmıştır. Sonuçta koyun koloştrumunun element içeriği ve renk değerleri doğum sonrası 9. ve 10. günlerde hemen hemen sabit olmuştur. Bundan dolayı kolostrum doğum sonrası 9. günde normal süte dönüşmüş olabilir.

Doğum sonrası on gün sürecinde avasi koyun kolostrumunda ınorganik maddeler ve renk değerlerindeki değişimler

In the present study, the determination of the concentration of twenty elements in sheep colostrum has been successfully carried out by ICP-OES. Element contents and colour values of sheep colostrum varied significantly during 10 days after parturition (P < 0.05, P < 0.01, P < 0.001). Of macro elements Ca had the highest mean concentration at the end of experimental period, which followed by P, K, Na, S and Mg elements. Of minor elements, B was highest, followed by Si, Zn, Se, Fe, Cu, Al, Sr, Ni, Ba, Mo, Co, Mn, Cd. When lightness index (L-value) of samples increased throughout postpartum period, greenness (-a value) and yellowness (b value) decreased. As a result, the amount of inorganic substances and colour values were nearly constant at days 9 to 10 postpartum. Therefore, sheep colostrum may be converted to mature milk at day 9 after parturition.

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