In Anurans, the specific mate recognition system (SMRS), which contributes to prezygotic isolation, is mainly based on morphological and call features. This is why such criteria are used by zoologists for taxonomic identification. In hybridogenetic water frogs (Rana ridibunda, R. lessonae, R. perezi, R. kl. grafi and R. kl. esculenta), hybridization opens up the question of the efficiency of th...

Cookies were produced from germinated pigeon pea, fermented sorghum, and cocoyam flour (CF) blends to determine their potentials in cookie manufacture. Ten flour formulations were produced and they were evaluated for their proximate and functional properties. Protein content ranged from 4.85% to 19.89% with 100% CF (100CF) having the least value, while 100% germinated pigeon pea flour (100GPF) ...

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The effect of heat treatment on polyphenoloxidases and peroxidase activities in three tissues (cambium, central cylinder internal bark) the varietie cassava roots (Manihot esculenta CRANTZ) Bonoua 2 were studied over a range 30 to 70 °C, using pyrogallol, 4-methylcatechol, dopamine pyrocatechol as substrates for polyphenol oxydase guaiacol substrate peroxidase. Optimal conditions enzym...

El objetivo de este trabajo es presentar resultados preliminares del establecimiento seis ensayos sistemas agroforestales con énfasis en cacao como cultivo principal, lotes pastizales degradados y rastrojos, pertenecientes a cuatro parroquias la provincia Orellana alternativa para diversificación las áreas degradadas proveer comunidades seguridad alimentaria, promover conservación agrobiodivers...

Frog breeding phenology in temperate zones is usually compared to progress of spring temperatures at a regional scale. However, local populations may differ substantially in phenology. To understand this, local climate and other aspects must be studied. In this study, breeding phenology of the common frog, Rana temporaria, in a set of ponds in southern Sweden is analyzed. There was within year ...

objective(s): this paper aims to investigate synergistic inhibition of polysaccharide from sepia esculenta ink (sip), a newly isolated marine polysaccharide in our laboratory, on breast cancer mda-mb-231 cells exposed to cisplatin. materials and methods: cell viability of mda-mb-231 cells was determined by cck 8 assay. median-effect concentration was analyzed using chou-talalay method that was ...

A strong visually determined white preference has been demonstrated for many Anura when they are given a choice of going toward stimuli of different intensity, or of turning toward or away from a light source (Pearse, 1910; Muntz, 19626). This preference is probably mediated by a system of 'on' fibres projecting to the diencephalon (Muntz, 1962 a, b) and dependent on the development of the gree...