G. Milev Abstract. During 2010 – 2012 a field trial was carried out with the new cultivar Beslet in the trial field of Dobrudzha Agricultural Institute on slightly leached vertisol. The aim of the investigation was to find out the optimal sowing and nitrogen norms for this cultivar un

V. Radev, T. Slavov, I. Varlyakov Abstract. An experiment was conducted to evaluate the effect of three rations with different lipid and protein levels on some blood biochemical parameters in yearling rams. The experiment was performed with nine Blackhead Pleven yearling rams, with in

I. Varlyakov, V. Radev, T. Slavov, G. Ganchev Abstract. A physiological experiment was conducted with three yearling sheep, Stara Zagora x Pleven Blackhead crosses, to establish the effect of feeding Paulownia elongatа leaves on some blood parameters. The trial consisted of two period

G. Ganchev, A. Ilchev Abstract. A balance trial was performed with two groups of Topigs hybrid pigs (n=4) and DanВred hybrid pigs (n=4). Each trial was of 10-day duration (5 days preliminary and 5 day experimental period, during which urine and faeces were collected). The pigs were fe

I. Valchev, N. Grozeva, D. Kanakov, Ts. Hristov, L. Lazarov, R. Binev, Y. Nikolov Abstract. Changes in blood concentrations of some biochemical indices (alpha amylase, lipase, insulin and blood glucose) as well as in pancreas morphology were monitored in mulard ducks with experimental

G. Angelov, I.Dimitrova, T. Mehmedov, P. Stamberov, N. Stancheva, S. Georgieva, Zh. Nakev Abstract. The survey covers 140 clinically healthy sheep from two indigenous sheep breeds – Karakachan (KK)and Copper-Red Shumen (CRS) over one year old. Blood samples are taken from v. jugularis

M. Ilchovska Abstract. For the purposes of preliminary evaluation of the combining ability for grain yield of 12 mutant maize lines a top cross method for early testing and the mathematical model of Savchenko(1993) for analysis of the general combining ability and specific combining a

B. Dyulgerova, D. Valcheva Abstract. Twenty two double haploid lines from winter malting barley breeding program of the Institute of Agriculture – Karnobat were tested in randomized complete block design with four replications. The objective of this study was to evaluate the breeding

R. Sturzu, T. Nistot, Cr. Melucă, Fl. Bodescu, A. Stoilova Abstract. The objective of this paper was to evaluate the environmental influence weight compared to the weight of genetic variance in quantitative characters in chickpea main expression and phenotypic correlations between the

T. Radoukova, Y.Dyulgerski Abstract. The variation degree of the basic morphological characteristics in 15 new perspective lines of the Burley tobacco variety group was established and analyzed. Detailed morphological characteristic of the studied tobacco samples was developed. For th