The effects of additional organic copper and organic zinc trace minerals on accumulation and elimination levels in female kids

Abstract

This study was conducted to evaluate the accumulation of copper and zinc in serum, hair and feaces of goats fed diets supplemented with organic Cu and Zn at levels of 25% lower than NRC (12) recommendations. Totally female kids were divided equally into two groups fed rations supplemented with organic (treatment, n=12) and inorganic (control, n=12) copper and zinc. Treatment diets was supplemented with 5.25 mg/kg DM copper chelate (2-hydroxy–4-methylthiobutyrate) and 15 mg/kg DM zinc chelate (2-hydroxy–4-methylthiobutyrate) whereas control diet was supplemented 7 mg/kg DM copper sulphate, 20 mg/kg DM zinc sulphate in the ration. At the end of the experiment in both treatments copper and zinc levels in serum and copper and zinc levels in hair samples were found higher than the average values at the beginning of the experiment, but the difference between the average values were not statistically significant. The average copper and zinc levels in serum and copper levels in hair samples of treatment group were found numerically higher than control group. Moreover the average zinc levels in hair samples were also numerically higher in control group. At the end of the study, the average faeces copper and zinc levels (P<0.001) were significantly lower in the treatment group. Although organic copper and zinc were given to the female kids in low levels (at level of 25%), we confirmed that this amount gave similar results to inorganic copper and zinc and organic minerals were found at lower levels in the faeces

Keywords

• Copper
• faeces
• hair
• organic mineral
• serum
• zinc

Rasyona eklenen organik bakır ve organik çinko iz minerallerinin dişi oğlaklarda birikim ve atılma düzeyleri üzerine etkisi

Abstract

Bu çalışma, NRC (12) tarafından keçiler için önerilen düzeylerin %25’i oranında azaltılarak rasyona eklenen organik yapıdaki bakır (Cu) ve çinko (Zn) minerallerinin serum ve kıldaki mineral birikim düzeyi ile dışkıda atılan mineral düzeyine etkisini değerlendirmek için yapıldı. Oğlaklar biri organik (deneme, n=12) ve diğeri inorganik (kontrol, n=12) bakır ve çinko minerallerini içeren rasyon verilen iki gruba ayrıldı. Deneme grubuna 5.25 mg/kg KM bakır-şelat (2-hydroxy–4-methylthiobutyrate) ve 15 mg/kg KM çinko-şelat (2-hydroxy–4-methylthiobutyrate), kontrol grubuna ise 7 mg/kg KM bakır-sülfat, 20 mg/kg KM çinko-sülfat verildi. Deneme sonunda her iki grubun serum bakır ve serum çinko ile kıl bakır ve kıl çinko ortalama değerlerinin deneme başına göre daha yüksek düzeyde olduğu, ancak ortalama değerler arasındaki farkın istatistiksel açıdan önemli olmadığı belirlendi. Serum bakır ve serum çinko ile kıl bakır ortalama değerlerinin deneme grubunda, kıl çinko ortalama değerinin ise kontrol grubunda rakamsal olarak daha yüksek düzeyde olduğu saptandı. Dışkı bakır ve dışkı çinko ortalama düzeylerinin deneme grubunda kontrol grubuna göre önemli oranda (P<0.001) düşük olduğu belirlendi. Organik bakır ve organik çinkonun oğlak rasyonunda %25 oranında daha düşük düzeyde kullanılmalarına rağmen inorganik bakır ve inorganik çinko ile benzer ve dışkıda daha düşük bir sonuç ortaya koydukları saptanmıştır

Keywords

• Bakır
• çinko
• dışkı
• kıl
• organik mineral
• serum

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