Sprague Dawley Ratlarda Kısa Fotoperyotun Bazı Kan Parametrelerine Etkisi: I- Enzim Seviyeleri

Outbred Sprague dawley ratlarda, kısaltılmış ışık süresinin vücut ağırlık artışı ve bazı kan enzim seviyelerine etkisi incelendi.Yavrular(n=96),12sa.aydınlık/karanlık(kontrol)vekısaltılmışışık(9sa.aydınlık/15sa.karanlık:muamele)olmak üzereikifotoperiyotşartınamaruzbırakıldılar.Muamelegruburatlarda,15haftalıkyaşta,bazıenzimparametreleri,kontrol grubuilekarşılaştırıldı.KontrolvemuamelegruplarıarasındaağırlıkartışıveCK- MB(myokardialkreatinkinaz)enzimihariç diğer enzim seviyelerinde farklılık gözlenmedi (P>0.05). Sprague dawley ratların, kısa fotoperiyot şartlarında, rutin uygulanan fotoperyot şartarındaki gibi, ağırlık artışı ve kan enzim seviyeleri değişmeden yetiştirilme şansı olabildiği sonucunavarıldı.

Effect of Short Photoperiod on Some Blood Parameters in Sprague Dawley Rats: I- Enzyme Levels

The effect of short photoperiod on body weight gain and some enzyme levels in outbred Sprague dawley rats wasexamined. The pups (n= 96) were assigned into two photoperiod groups: 12 h of light/dark (control) and short photoperiod(9 h light/15 h dark: experiment). The enzyme levels in the experimental group rats were compared to those of controlgroup, at 15 weeks of age. No significant differences (P>0.05) were observed between control and experimental groups,with regard to body weight gain and measured enzymes, except for CK- MB (myocardial creatine kinase). It is concludedthat, outbred Sprague dawley rats could be kept under short photoperiod conditions, without marked change in the levelsof weight gain and some blood enzymes.

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