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• Nutrition reaction of different varieties of winter wheat (Triticum aestivum L.) bred in Karcag

  63-67

  Ágnes Czimbalmos

  Lilla Szűcs

  József Zsembeli

  Views:

  174

  In our study the nutrition reaction of four varieties of winter wheat (KG Bendegúz, KG Kunhalom, KG Kunkapitány, KG Széphalom) has been investigated. In the experiment the effect of twenty different nutrition doses on the yield and thousand kernel weight of the wheat varieties has been studied. Significant difference could be figured out among the yield and thousand kernel weight of the wheat varieties, so the choice of the proper variety determines the quantity of yield. KG Kunkapitány had the highest yield, while KG Széphalom had the highest thousand kernel weight in the experiments.

  Investigating the effect of the nutrients on the yield the conclusion was that all nitrogen doses had significant yield increasing effect compared to the untreated plots, but among the 40, 80 and 120 kg ha^-1 doses there was no statistical difference. In the case of phosphorus the 40 kg ha^-1 dose showed statistically verifiable increase of the yield, while potassium doses have no influence on the yields. The thousand kernel weights reached the maximum values where the highest nutrient doses were applied.

• Hybrid-specific nutrient and water use of maize on chernozem soil

  51-54

  Lajos Karancsi

  Views:

  130

  The field research was set up on chernozem soil at the Látókép AGTC KIT research area of the University of Debrecen. The study focused on yield, water utilization, nutrient reaction and the amount of yield per kg fertilizer of corn hybrid NX 47279 in 2011 and 2012. Based on the yield results it can be concluded that the largest yield in 2011 was 15 963 kg ha^-1 at level N120+PK, while in 2012, the maximum yield amounted to 14 972 kg ha^-1 at level N90+PK. Surplus yield per kg fertilizer proved that in 2011 level N30+PK resulted in the highest surplus yield (42.3 kg kg^-1) compared to the control treatment. In 2012, yield growth was 18.0 kg kg^-1 compared to the control treatment. We measured at level N60+PK 17,5 kg kg^-1 compared to at level N30+PK, at the N90+PK 17,7 kg kg^-1 compared to at level N60+PK. level N30+PK kg kg^-1, 17.5 kg kg^-1 at level N60+PK and 17.7 kg kg^-1 at level N90+PK compared to the control treatment.

  Results of the regression analysis showed that the amount of nitrogen fertilizer was 117 kg ha^-1 in 2011 and 111 kg ha^-1 in 2012 in order to reach maximum yield. Doses of fertilizers above the amounts previously mentioned resulted in yield decrease. Our results indicated that in the drought year of 2012 the hybrid used available water more efficiently than in 2011. The hybrid produced 59 kg ha^-1 yield in 2012 and 51.9 kg ha^-1 in 2011 at an optimum nutrition level.

• The effect of β-glucan, carotenoids, oligosaccharides and anthocyanins on bacteria groups of excreta in broiler chickens

  15-20

  Brigitta Csernus

  Sándor Biró

  László Babinszky

  László Stündl

  Judit Remenyik

  Georgina Pesti-Asbóth

  János Oláh

  Levente Czeglédi

  Views:

  258

  This study was conducted to examine the effect of natural compounds, such as β-glucan, carotenoids, oligosaccharides, and anthocyanins in the diet on bacteria gropus of excreta in Ross 308 broiler chickens. Chickens were fed 5 diets: control (basal) diet, a diet supplemented by β-glucan at 0.05%, and diets supplemented by carotenoids, oligosaccharides, or anthocyanins at 0.5% of each compound. On experimental day 19, excreta were collected to determine the proportion of Lactobacillus, Bifidobacterium, Campylobacter, Clostridium, and Escherichia coli. Samples were collected aseptically and snap-frozen in liquid nitrogen. Bacterial DNA was isolated from samples, then polymerase chain reaction using primer pairs designed to the 16S rDNA of bacterial groups were applied to define the proportion of the mentioned bacteria. Another universal primer pair was used to amplify a region of 16S rDNA of all the examined bacteria. Proportion of each bacterial groups was determined relatively to the intensity of universal PCR product band by gel documenting system and ImageLab software. Based on the results, carotenoids and anthocyanins increased the proportion of Bifidobacterium, which might imply the beneficial effects of the mentioned compounds on the bacteria composition of excreta.