Tissues samples of chicken /blood, liver, spleen, fat, pancreas, kidney, lung, breast muscle, brain, femur, faeces, egg yolk, white of egg/, were analyzed for scandium concentration. ScCl3 was applied intravenously /1 mg kg–1 body weight/. High scandium concentrations were found in the liver /34. 35 ppm/, spleen /15.46 ppm/, and lung /15.52 ppm/ three days after application. This experiment shows that accumulation of scandium occurs in the yolk of egg but not in the white of the egg.
Ionizing radiation was used for the purpose of reducing bacterial contamination in mechanically deboned chicken meat (MDCM).
Irradiated and non-irradiated MDCM stored at -18±1 °C, and samples were taken at zero time and at 30-day intervals up to 90
days for 2-thiobarbituric acid reactive substances, sensory and microbiological analyses. The results obtained for the microbiological,
sensory and lipid oxidation evaluations, showed that the MDCM samples irradiated with doses of 3.0 and 4.0 kGy were all considered
acceptable during 90 days of frozen storage.
Authors:Maria Weber, Sz. Stiller, K. Balogh, L. Wágner, Márta Erdélyi and M. Mézes
The purpose of the present study was to investigate the effect of experimental T-2 toxin load (2.35 mg/kg of feed) and vitamin E supply in the drinking water (10.5 mg/bird/day) on vitamin E levels of the blood plasma and liver in broiler chickens in a 14-day experiment. It was found that T-2 toxin load did not influence vitamin E content of the blood plasma except at day 3 after the toxin load when a moderate increase was detected in plasma vitamin E. No significant changes were found in vitamin E content of the liver. The simultaneous use of high-dose vitamin E supplementation and T-2 toxin load caused a significantly higher plasma vitamin E content but the changes were less expressed in the group subjected to T-2 toxin load. Vitamin E supply also resulted in a marked and significant increase in vitamin E concentrations of the liver on days 3 and 7 even in the T-2 loaded group, but this concentration significantly decreased thereafter. The results show that T-2 contamination of the diet has an adverse effect on the utilisation of vitamin E in broiler chickens.
Authors:K.N. Hussein, L. Friedrich, R. Pinter, Cs. Németh, G. Kiskó and I. Dalmadi
This study was conducted to evaluate the effect of bioactive compounds (BACs): linalool (LIN) and piperine (PIP) on chicken meat characteristics. The meat was treated with 500, 1000 ppm of BACs, vacuum packaged and stored at 4 °C for 8 days. Physicochemical characteristics, lipid oxidation (thiobarbituric acid reactive substances, TBARS), microbiological status, and sensorial (electronic-nose based) properties were investigated. Both BACs significantly increased the redness (a*) and chroma (C*) values in meat compared to increased lightness (L*) and higher TBARS in control. Although both BACs showed overlapping aroma profile, the E-nose was able to distinguish between the different meat groups. LIN with various dilution ratios, particularly 1:10 (v:v), showed in vitro growth inhibition against Escherichia coli, Staphylococcus aureus, Salmonella Typhimurium, and Bacillus cereus, concomitantly Listeria monocytogenes required 1:80 (v:v) to be inhibited, and no inhibition was detected for Pseudomonas lundensis. In contrast, PIP at different dilutions did not exhibit inhibitory activity. Regarding aerobic mesophilic counts (AMC), less than 7 log CFU g−1 were recorded except for control showing higher log. Both BACs have potential to improve quality characteristics and increase the shelf life of meat and meat products.
Authors:L. Peng, L. Yi, H. Jia, D. Fengjiao, P. Daiwen and Q. Songsheng
A microcalorimetric technique was used to evaluate the influence of La3+ on mitochondria isolated from the liver tissue of Avian chicken. By means of LKB-2277 bioactivity monitor, ampoule method
at 37C, we obtained the thermogenic curves of the metabolism of mitochondria. After isolation from the chicken liver tissue,
mitochondria still have metabolic activity and can live for a long time depending on the stored nutrients. In order to analyze
the results, the maximum power (Pm) and the decline rate constants (kd) were obtained. The addition of La3+ results in an increase of the maximum heat production and decline rate constants. Furthermore, values of Pm and kd are linked to the concentration of La3+. According to the thermogenic curves under different conditions, it is clear that metabolic mechanism of mitochondria has
been changed with the addition of La3+.
Authors:K. Balogh, Mária Weber, Márta Erdélyi and M. Mézes
, Gy., Szabó, E., Gönye, S. and Rátz, F. (1993): Acute selenium toxicosis in broiler chicken (in Hungarian). Magyar Állatorvosok Lapja 48 , 22-26.
Acute selenium toxicosis in broiler chicken (in Hungarian