Vera Djekic

Soybean oil yield as affected by the growing locality in agro-climatic divergent years.

The subject of this study are two-year results of the oil yield of six NS soybean genotypes, 0 and I maturity group (MG) at two growing localities (Rimski Sancevi and Sombor in Serbia). Sombor had higher oil yield than Rimski Sancevi (by 119 kg ha -1 , i.e. 15.97%). In the locality of Sombor, in 2010, of the oil yields were statistically significantly higher (1.088 kg ha -1 ) compared to 2009 (640 kg ha -1 ), which is higher by 448 kg ha -1 or 70% of the average oil yield in 2009. The average oil yield, for all tested genotypes at both locations was 805 kg ha -1 , and ranged from 745 kg ha -1 (Rimski Sancevi) to 864 kg ha -1 (Sombor). At both sites significantly higher oil yield was recorded in 2010 compared to 2009. The highest average oil yield at both sites was achieved growing genotype Sava (840 kg ha -1 ). Sava had highest oil yield (887 kg ha -1 ) and Balkan (902 kg ha -1 ) in locality of Sombor. On average for both genotypes and growing localities I MG had higher average oil yield of 29 kg ha -1 ( 3.67%) than 0 MG genotypes. Realizing the potential for soybean productivity depends on genetic factors, the cultural practice implemented, meteorological conditions and the growing localities.

Effect of different varieties of Triticale on product characteristics in broiler chickens.

The aim of this paper was to determine how forage triticale in diets for fattening broilers influence the body weight and weight gain of broiler chickens for fattening. The survey was conducted on 400 chickens for fattening provenance Ross 308 for a period of 42 days. On this occasion, four groups of chickens were formed, with 100 chickens being treated in each group, as follows: K (classic mixture for fattening broilers) and O-I (mixtures with triticale variety Kg 20), O-II (mixtures with triticale Favorit) and O-III group (mixtures with triticale Trijumf). The highest average body mass in the groups of chickens (male, female and chicks of both sexes), was scored by broiler chickens of O-II-group. The minimum food consumption for 42-day-old chicks was achieved by group O-I (4.275 kg), and the most by O-II group (4.359 kg). Chickens of O-II- and III-O-group had the best feed conversion, while the chickens of O-I-group had a slightly poorer feed conversion. The mortality of the groups of chickens for the entire period of the study was the lowest in O-II-group, at 2.0%, and the highest mortality was found in O-III-group (6.0%). The production index was the highest in O-II-group (202.726) and the lowest in O-I-group. The results achieved in this research indicate that the use of tested triticale cultivars significantly affected the weight gain and body mass of chicks and have nutritional and economic justification. [Projekat Ministarstva nauke Republike Srbije, br. TR 31033]