نتایج جستجو برای: threshold effects
تعداد نتایج: 1648044 فیلتر نتایج به سال:
autoselection is a kind of natural selection, that occurs in reproductive traits by inequality of offspring generation and therefore by virtue of the nature of its genes transmission to next generations. in this study, the effects of autoselection on heritability and selection response in reproductive traits by using univariate stochastic computer simulation in artificial selected and unselecte...
The current study was carried out to evaluate accuracy of some Bayesian methods for genomic breeding values prediction for threshold traits with different types of genetic architecture based on distribution of gene effect and QTL numbers. A genome consisted of 3 chromosomes of 100 CM with 2000 single nucleotide polymorphisms (SNP) was simulated. The QTL numbers were 0.01, 0.05 and 0.1 of total ...
The research was conducted on 3 844 Polish Merino lamb dams born in 1991-2001, used in 15 flocks from the Pomerania and Kujawy region in Poland. The assessed parameters were the number of lambs born from a dam after lambing (LSB) (1, 2, 3) and the number of lambs reared (LSW) (0, 1, 2, 3). The genetic parameters LSB and LSW were estimated with the use of two methods: Average Information – REML ...
Background: Effect of caffeine on seizure is controversial in animal models of epilepsy. Caffeine is non-selective antagonist of A1 and A2A adenosine receptors. Meanwhile, nitric oxide-soluble guanylate cyclase-cyclic guanosine monophosphate (NO-sGC-cGMP) pathway is partly involved in the central effects of caffeine. Objective: The aim of this study was to investigate the effect of acute caffe...
Background: Vitex agnus - castus extract (Vitex) is available in dosage forms for female disorders treatment. This extract has shown controversial effects against seizures induced by Maximal electroshock (MES) or pentylenetetrazole (PTZ). Objective: In the present study the anti-seizure activity of Vitex against acquisition of amygdala kindling was evaluated in male rats. Methods: Intact ...
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