effects of semi-pure tannin usage, on crude protein fractions of soy bean meal and canola meal by cncps

نویسندگان

نرگس وحدانی

دانش آموختۀ دکتری، گروه علوم دامی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مهدی دهقان بنادکی

دانشیار، گروه علوم دامی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج کامران رضایزدی

دانشیار، گروه علوم دامی، دانشکدۀ علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج فرحناز خلیقی سیکارودی

دانشیار پژوهش، مرکز تحقیقات گیاهان دارویی، پژوهشکدۀ گیاهان دارویی جهاد کشاورزی، کرج، ایران

چکیده

in this research to investigate of the effect of tannin`s type and level on rumenal degradation of soybean meal (sbm) and canola meal (cm), two experiments have be done. at first experiment supplements were treated by semi-pure tannin of pomegranate-pistachio (pp), in different levels (0, 10 and 15 % of dm for sbm and 0, 5 and 10% of dm for cm). in second experiment, these supplements were treated by (pp), pomegranate-tea (pt) and sole pomegranate (p) at same levels (10% of dm).  the effects of these treatments on protein fractioning of treated and untreated smb and cm was determined by, cncps system, in comparison with fish meal (fm) and corn gluten meal (cgm), as a sources of bypass protein. according to results, treated sbm by pp 10% (sbm-pp) and treated cm by pp5% could increase bypass protein fraction in comparison with fm and cgm. so it can be concluded that these treatments, could be used in reminant diet to provide by pass protein, but further research is necessary to investigate in vivo effects of these treatments.

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