Mehmet Akif YÖRÜK, Recep GÜMÜŞ, Feryoz HİRA, Nejdet ŞİMŞEK, Adem KARA

İnorganik ve organik bakır, çinko ve mangan eklenen diyetlerle beslenen yumurta tavuklarının ince bağırsak morfolojisi üzerine histokimyasal ve histometrik bir çalışma

Araştırmada, yumurta tavuğu rasyonlarında NRC (National Research Council) (1994) tarafından yumurta tavukları için önerilen düzeyde ve bu düzeyin %66'sı ile %33'ü oranlarında inorganik ve organik bakır (Cu), çinko (Zn) ve mangan (Mn) kullanılmasının, intestinal sistem morfolojisi üzerine etkileri ve tavukların intestinal sistem morfolojisi ile biyoyararlanılabilirlik arasındaki muhtemel ilişki değerlendirilmiştir. Çalışmada, yetiştirme 45 haftalık yaşta toplam 336 adet kahverengi yumurtacı (Lohmann kahverengi) ticari tavuklar, her grupta 56 adet olacak şekilde, 6 gruba ayrıldı. Birinci grup %100 organik rasyon, 2. grup %100 inorganik rasyon, 3. grup %66 organik rasyon, 4. grup %66 inorganik rasyon, 5. grup %33 organik rasyon, 6. grup ise %33 inorganik rasyon içeren yemlerle 5 hafta süresince beslendi. Çalışma sonunda, her gruptan rastgele 6 hayvan kesilerek histokimyasal ve histometrik oiarak incelendi. Çalışma sonuçları, organik ve inorganik besleme intestinal sistem kadeh (goblet) hücresi sayısını ve kript derinliğini artırırken bu beslemenin ince bağırsaklarda villus uzunluğunu azalttığını göstermektedir.

A histochemical and histometric study on small intestine morphology by feeding organic and inorganic copper, zinc and manganese sources in laying hens

In the present study, hens were fed with recommended ratio by NCR (National Research Council) and 66% and 33% ratio of organic and inorganic copper (Cu), zinc (Zn) and manganese (Mn) sources, to evaluate the effect on small intestinal system morphology and possible relationship between the small intestine and bioavailability in the laying hens feeding. We used the 45 weeks old 336 brown (Lohmann Brown) laying hens and the hens were divided into six groups, each organic and inorganic three replicates groups of 56 chicks; 1st group fed with 100% organic dietary supplement, 2nd group fed with 100% inorganic dietary supplement, 3"' group fed with 66% organic dietary supplement, 4,f1 group fed with 66% inorganic dietary supplement, 5th group fed with 33% organic dietary supplement and 6,h group fed with 33% inorganic dietary supplement for five weeks. The results suggest that both the organic and inorganic sources increased the intestinal system goblet cells number and crypt depth, whereas these feeding decreased the villus height in chicken small intestinal system.

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