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23 documents indexed

Cross-mating and oviposition behaviour between strains of Cotesia sesamiae cameron (hymenoptera: braconidae) from Kitale, Mombasa and Mount Kenya

& Fritz Schulthess Bruno Le Ru · E.W. Kairu · J.N. Mugambi

Stemborers cause 50% yield losses in cereal crops. In Kenya Cotesia sesamiae is one of the parasitoids that has been studied in regard to the control of stemborer pests. In this study the reproductive compatibility of three populations of …

RUF-35125 2010 CC BY 4.0 16 Sep 2015

Effect of dietary protein, lipid and androgen (11 - ketotestosterone) levels on the progeny of Oreochromis andersonii (castelnau, 1861) broodstock

J. Kang’ombe · D. Kassam · Alexander Shula Kefi

The study on the effect of dietary protein, lipid and 11 – Ketotestosterone (11 – KT) levels on the progeny quality of Oreochromis andersonii broodstock will be conducted at National Aquaculture Research and Development Centre, Kitwe, Zamb…

RUF-35051 2010 CC BY 4.0 15 Sep 2015

Some aspects of reproductive biology of Oreochromis andersonii, Oreochromis machrochir and Oreochromis niloticus in ponds

N. Chimba · C. Kancheya · Alexander Shula Kefi · K.G. Kubiriza +1 more

The study on the reproductive biology of Oreochromis macrochir, O. niloticus and O. andersonii was carried out for sixty nine days in hapas. There were no significant (P > 0.05) differences in the number and weight of spawn incubated in…

RUF-35035 2010 CC BY 4.0 15 Sep 2015

Conservation agriculture I: Effects of legume crop species on ground cover, soil moisture retention, weed suppression and litter fall on maize yield in Swaziland

D. M. Bhekizizwe · O. T. Edje

The reintroduction of conservation agriculture in Swaziland required information on crop species that could provide ground cover, suppress weeds and conserve soil moisture. A field experiment was conducted at the Malkerns Research Station …

RUF-33903 2014 CC BY 4.0 11 Aug 2015

Food type preference, Breeding Seasonality and size at first Maturity of Synodontis njassae of Southeast arm of Lake Malawi

K.M. Kamtambe · E.W. Kaunda · F. Maguza-Tembo · A. Msukwa

The food type preferencein the southeast arm of Lake Malawi was studied. Frequency of occurrence, gravimetric, volumetric and index of relative importance was used to assess food preference. It was found that S. njassae is an omnivore, con…

RUF-32808 2012 CC BY 4.0 19 May 2014

Susceptibility of some Varieties and Breeding lines of Tomato to Liriomyza spp. infestation in Central Sudan

Dominique Bordat · M.A. Elameen Eltoum · M. Elamin Elamin · E.E. Faiza Salah +1 more

Tomato crop in the central Sudan is liable to heavy infestation by the leaf miners, Liriomyza spp. Field experiments indicated significant differences in varietal susceptibility of varieties and tomato breeding lines to Liriomyza spp. The …

RUF-31902 2012 CC BY 4.0 12 May 2014

Influence of Dietary Soya Beans (Glycine Max (L.) Merr.) Protein and Lipid Combination, and Androgen (17 α – Methyl Testosterone) Levels on the Growth and Reproduction of Oreochromis Andersonii (Castelnau, 1861)

Alexander Shula Kefi

In order to investigate the influence of dietary soya bean protein and lipid combination, and androgen (17 α – methyl testosterone (MT)) levels on the growth, reproduction and sex ratios of Oreochromis andersonii (Castelnau, 1861), four ex…

RUF-31702 2014 CC BY 4.0 17 Mar 2014