Yumurta Tavuklarında İnorganik ve Organik Bakır, Çinko, Manganın Farklı Düzeylerinin Yumurta Verim ve Kalitesine Etkileri

Araştırma, yumurta tavuğu rasyonlarında NRC (National Research Council) (1994) tarafından önerilen düzeyde ve bu düzeyin %66’sı ile %33’ü oranlarında inorganik ve organik bakır, çinko ve mangan kullanılmasının performans ve yumurta kalitesi üzerindeki etkilerini belirlemek amacı ile yürütüldü. Araştırmada toplam 336 adet 45 haftalık yaşta Lohman kahverengi ticari yumurtacı tavuk kullanıldı. Araştırma 150 gün sürdürüldü. İnorganik mineral gruplarının mineral premiksleri, standart bir inorganik premiks kullanılarak NRC’nin bildirdiği düzeylerde sülfat formunda 29 mg Zn (ZnSO4), 4 mg Cu (CuSO4) ve 17 mg (MnSO4) ve bu düzeylerinin sırasıyla %66 ve %33’ü oranında olacak şekilde hazırlandı. Organik mineral gruplarının mineral premiksleri ise inorganik minerallerle aynı seviyelerde ve oranlarda bir organik mineral premiksi (BioplexTM) kullanılarak hazırlandı. Mevcut araştırma sonuçlarına göre, yumurta tavuğu rasyonlarına geleneksel inorganik iz mineral katkısının ihtiyaçtan fazla olduğu ve azaltılabileceği; yine inorganik iz minerallerin yerine organik formlarının çok daha düşük düzeylerinin performans ve yumurta kalitesini etkilemeksizin katılabileceği kanaatine varıldı.

The Effect of Different Levels of Inorganic and Organic Copper, Zinc and Manganase on Egg Production and Quality in Laying Hens

The study was conducted to determine the effects of inorganic and organic copper, zinc and manganese supplementation at both recommended levels by NRC (1994), and at 66% and 33% proportion of those levels in laying hen rations on performance and egg quality in laying hens. In experiment, a total amount of 336 commercial laying Lohmann brown hens at 45 weeks of age was used. All hens were given a second period cage laying hens diet and study was conducted for 150 days. The mineral contents of inorganic groups were supplied using a standard inorganic mineral premix at both levels of NRC recommendations (29 mg Zn as (ZnSO4), 4 mg Cu (CuSO4) and 17 mg Mn as (MnSO4)) and 66% and 33% proportions of those levels. The mineral contents of organic groups were also supplied using an organic mineral premix (BioplexTM) at the same levels and proportions of those inorganic minerals. According to the results of the current study, it was indicated that traditional trace inorganic mineral (Cu, Zn and Mn) supplementation into laying hen diets are more than it is needed and this supplementation level can be reduced; organically complexed trace minerals (Cu, Zn, and Mn) can be used at a much lower concentration than the current recommended levels as inorganic minerals, without a negative impact on performance and egg quality in laying hens

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