Zeranol'ün Kimyasal Özellikleri, Metabolizması ve Toksisitesi

Zeranol, hayvanlarda canlı ağırlık artışı ve yemden yararlanmayı hızlandırmak amacıyla kullanılan nonsteroidal bir anabolik maddedir (23). Bir diğer adı da zearalanol olan zerariol kimyasal kaynaklarda, 3,4,5, 6, 7,8,9, 1 O, 11, 12-decahyro-7, 14, 16-trihydroksi,3-methyl -[35-(3R*, 78*)-IH- 2-benzoksiasidotetradesin-1-one] olarak kaydedilmiş olup, kapalı formülü C18H26O5'dir. Molekül ağırlık 322.40 olan zeranol beyaz, kristalize, kokusuz bir toz olup 180-185°C'da erir. Amerikan Gıda ve Ilaç Idaresi (FDA) tarafından, besi sığırianna derialtı kulak implantasyonu şeklinde bir seterde 36 mg dozda uygulanması ve kesim öncesi 65 günlük bekleme süresi uygun görülmüştür. Bu değerler koyunlar için 12 mg ve 40 gündür (1, 7,20). Zeranol ticari olarak Gibberella Zae (Fusarium graminearum, Fusarim roseum) süspanse kültürlerinden, doğal ürün olarak elde edilen, Zeralenon'dan hazırlanır. Işlemler sırasında zeranol ve taleranol karışımı elde edilir. Zeranol bu karışırndan % 98-99 saflığa kadar ayrılır. Rekristralize edilir bu madde "Ralgro" olarak bilinen ticari formülün esasını oluşturur. Zeranal'ün anabolik etkinliği hiçbir seks ve ırk sınırlaması olmaksızın yeni doğmuş buzağılardan yaşlı sığırlara kadar her grup sığırda yapılan çalışmaların sonucu olarak tespit edilmiştir (1 ).

Chemical properties, metabolism and toxicity of zeranol

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