Peter P.,SZIE MKK |
Ferenc P.,SZIE MKK |
Akos B.,SZIE MKK |
Hamar Eniko A.,KRF |
Laszlo B.,SZIE MKK
Magyar Allatorvosok Lapja | Year: 2010
Food safety and traceability control in the production of agricultural primary products becomes more important criteria for the consumers because industrial and agricultural activity has also resulted in increased environmental concentrations of trace metals. The objective of this study was to investigate the accumulation of lead (Pb) and cadmium (Cd) in different organs (brain, liver and kidney), and in different parts of meat (shoulder, loin and leg) in ewes and lambs The highest Pb concentration was found in liver (ewes: 0.593 mg/kg wet wt; lambs: 0.427 mg/kg wet wt), and the highest Cd concentration was detected in kidney (ewes: 0.478 mg/kg wet wt; lambs: 0.385 mg/kg wet wt). The contents of cadmium and lead in brain, liver, lung and meat taken from lambs were lower, compared to the same organs and tissues of ewes. Based on the results, it can be stated that even if the heavy metal contents of grass and forages meet the permissible limits of regulations, it is not necessarily a guarantee for the low heavy metal content of primary food products.
The place of absorption of lycopene and the characteristics of its deposition into the yolk in Japanese quail (model experiment) [A likopin felszívódási helye és tojásba épülésének jellege Japán fürjben (modellkísérlet)]
Katalin P.-R.,SZIE MKK |
Annamaria K.,SZIE MKK |
Zsuzsanna K.,SZIE MKK |
Laszlo B.,SZIE MKK
Magyar Allatorvosok Lapja | Year: 2011
Intestinal absorption of lycopene and its deposition into the yolk was investigated in Japanese quails (Coturnix coturnix japonica). The experiment was divided into three periods. In the first phase, (0-2 nd week) in the depletion period all birds were fed on a rice based, carotenoid free diet. In the second stage (3 rd-7 th week) 10 quails were fed on the depletion diet while 10 birds on the same diet plus supplemented with a large dose (500 mg/food kg) of lycopene (Redivivo ™ DSM). In the final part (8 th and 9 th week) of the experiment all birds received a corn based commercial layer feed. Blood samples were taken at the end of 2 nd, 7 th and 9 th weeks of the experiment. At the end of the second experimental phase, 5-5 quails were lege artis killed and two parts of the small intestine (duodenum and jejunum) were cut off. These segments were washed out with ice cold physiological saline and the mucous membrane was prepared and homogenized, and liver samples were collected at the same time, too. Eggs from each period and treatment were collected all over the experiment. The yolk colour was determined every week by Yolk Colour Fan (DSM). The lycopene concentration of blood, liver, yolk and the mucous membrane samples were determined by isocratic-reverse phase HPLC. The results indicate that lycopene absorption takes place in the investigated segments of small intestine in Japanese quail. It was determined that the mucous membrane of jejunum contains higher concentration of lycopene than the duodenum (p<0.05). The dye accumulated in the yolk resulted in intensive yellow colour (12-13 YCF score) compared to those eggs which were produced in the carotenoid free diet group (p<0.001).