خيارات البحث
النتائج 1 - 3 من 3
African swine fever in Zambia: Potential financial and production consequences for the commercial sector
1996
Samui, K.L. (University of Zambia, Lusaka) | Nambota, A.M. | Nweene, A.S. | Onuma, M.
Acaricide resistance profiles of single- and multi-host ticks from communal and commercial farming areas in the Eastern Cape and North-West Provinces of South Africa
2002
Mekonnen, S. | Bryson, N.R. (Pretoria Univ., Onderstepoort (South Africa). Veterinary Tropical Diseases Dept.) | Fourie, L.J. | Peter, R.J. | Spickett, A.M. | Taylor, R.J. | Strydom, T. | Horak, I.G.
Характеристика качества яиц кур кросса Беларусь аутосексный
2009
Sviridova, S.N. | Makhnach, V.S. | Dmitrieva, T.V., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus). Belarus Regional Experimental Poultry Station
Into the programme hen selection of Belarus Autoseksnyj cross there was introduced the indeks of the so-called quality of eggs which is defined by removal defective on quality of a shell of eggs in 30 and 52-week age. The size of variability of an indicator of 16,0-25,4% and hehtability 0,3-0,4 allows to lead selection on increase in an exit of qualitative eggs. Influence on quality of eggs with defects of a shell of age of hens, intensity eggs, weights of eggs, a linear accessory is established
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