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Effects of hens feeding on eggshell properties and their interrelationship / Uticaj ishrane nosilja na vrednosti i međusobnu povezanost osobina ljuske jaja
(Journal of Scientific Agricultural Research, 2000)
Eggshell quality was studied in three groups of Issa brown hens, of 73 to 78 weeks of age. The group 1 received a basal diet with 3.8 % of Ca and 0.35% of available P, in which pulverised limestone (particle size 0,02 mm) ...
The analysis of genetic parameters for milk properties of sheep / Ispitivanje genetičkih parametara osobina mlečnosti ovaca
(Journal of Scientific Agricultural Research, 2000)
The investigation was carried out on the sheep farm on the mountain Stara planina. The trial included two sheep genotypes: 1. Pirot pramenka sheep and 2. Improved Pirot sheep. In order to estimate necessary parameters the ...