Rainbow trout (Oncorhynchus mykiss) sperm was frozen in liquid nitrogen in straws or as pellets on dry ice and stored in liquid nitrogen until artificial insemination. Sperm was diluted with one of three extenders containing 15% DMSO or 15% DMA as a cryoprotectant at a ratio of one part sperm to two parts extender. The straws were thawed in a water bath while the frozen pellets were thawed in t...

The growth profile of Bacillus cereus in ready-to-eat (RTE) food products of animal origin was examined under different temperature and incubation conditions. In sandwiches and Kimbab, B. cereus did not grow or exhibited only minimal growth at 4 and 10oC, but it grew rapidly at ambient temperature. In sandwiches, B. cereus did not grow efficiently at 25oC, however, in ham, the main ingredient o...

The study aimed at isolating a potential acid protease producing fungal strain from local soil source. The fungal strains were isolated from garden soil on the basis of clearance zone on casein-glycerol agar flooded by coomassie blue stain. Aspergillus sp. showing maximum clearance on casein agar plates (pH 5) was selected for further studies. Optimization of various factors influencing maximum...

Carp respond to cold by the up-regulated expression of ∆9-acyl CoA desaturase. Here we report the cloning and characterisation of Cds2, a second ∆9-acyl CoA desaturase expressed in carp liver. Both Cds1 and Cds2 complemented the ole1 mutation in Saccharomyces cerevisiae, permitting the synthesis of ∆9 monounsaturates, confirming their identity as ∆9-desaturases. We demonstrate that under a stan...

This paper describes the use of artificial lights (Super Bright LEDs) for crop Hydroponics. To compare the growth of plants grown in natural light. The experiments are carried out in a closed dark enclosure, the control of the lights (LEDs) are ON for 16 hours a day. The Temperature was maintained at less than or equal to 30oC using an air pump cycling on and off, the run time on being 30 minut...

Malaria can be diagnosed using several approaches including clinical presumptive diagnosis, microscopy, polymerase chain reaction (PCR), enzyme-linked immunosorbent assay (ELISA) and malaria rapid diagnostic tests (MRDTs),1 of which microscopy remains the ‘gold standard’.2 Since microscopy requires highly skilled staff, electricity, microscopes and laboratory reagents, its use is restricted to ...

This study entails the production of bioethanol from peels sweet potato white cultivar variety obtained in Zaria, Kaduna State Nigeria. Fresh with proximate composition 72% moisture content, 9.71% ash 24.52% crude fiber, 78.74% total carbohydrate and protein 6.42% were hydrolyzed 3% sulphuric acid solution at 130oC 60 minutes an improvised reactor to generate 54.5ml hydrolyzate after steam pret...

Polyhydroxyalkanoates (PHA) are renewable, biodegradable biopolymer intracellularly accumulated by wide array of microorganisms as carbon reserve. This study investigates the influence various cultural conditions on PHA production a recently isolated local species under submerged fermentation. Six producing strains were identified 16S rDNA gene sequencing and strain Priestia flexa OWO1 showed s...

This study was conducted on a motorcycle engine that already has bi-fuel, with liquid phase LPG injection. However, when conducting experiments the concentration of substances in exhaust gas, results show hydrocarbon tests different effects. It is possible to see sudden high at some point time. Over time, nozzle tip will gradually form ice around due evaporation and heat collection. When formin...

Banyak faktor dapat mempengaruhi kejadian malaria. Faktor tersebut berasal dari perubahan kondisi lingkungan itu sendiri. Kondisi kepadatan Anopheles spp. di dalam rumah yang kontak dengan manusia. berupa suhu udara. Suhu udara hangat mempercepat siklus hidup nyamuk sehingga meningkatkan rumah. Besarnya per orang jam akan frekuensi antara vektor dan Penelitian ini bertujuan untuk mengidentifika...