The aim of this study was to evaluate the effect of Tenebrio molitor larvae meal supplementation in chicken diets on the chemical composition and sensory quality of meat. The experiment was conducted on 120 Ross 308 male broilers from day 12 to day 38 of their age. Broilers were divided into three equal groups with 5 replicates per treatment. The two experimental groups received feed mixtures containing 2% (TM2; n = 40) and 5% (TM5; n = 40), respectively of yellow mealworm (Tenebrio molitor L.) meal. The third group (TM0; n = 40) was control, receiving 0% of mealworms in diet. The addition of mealworm meal to diets in this trial do not worsen the chemical composition or sensory characteristics of the thigh meat of broilers. The control chickens had a higher live weight (P < 0.05) compared to the experimental groups at the end of the trial. The lowest live weight and feed intake was determined in group TM2 (P < 0.05). The highest feed intake (P < 0.05) was found in the control group. The breast meat from the control group was rated better (P < 0.05) in flavour compared to the groups receiving 2% and 5% of yellow mealworms. The primary requirement for the use of any ingredient in feed is that it does not adversely affect food safety and quality. In our study, the inclusion of 2% and 5% mealworm meal in the broiler’s diet had no influence on meat quality.
Wheat is one of the most important agricultural crops worldwide. Recently, anthocyanin-rich wheat genotypes were introduced to the market as a food with added value. In the experiment described here, two different genotypes with blue grain were studied (UC66049 and Skorpion). The aim of the investigation was to determine whether a 72-day-long intake of anthocyanin-rich wheat can influence the drug-metabolizing microsomal cytochromes P450 (using standard drug substrates of rat/human liver microsomal cytochromes P450) and antioxidant status, which indicated the ability of the rats' liver to metabolize drugs or xenobiotics. Consumption of an anthocyanin-rich diet moderately increased the activity and mRNA expression of the studied CYPs by 20-55% relative to the control (with the exception of CYP2B1/2). The health status of rats was good; the weight gain was lower in the group with anthocyanin-rich UC66049 grain compared to the other two groups (control and Skorpion-fed one). The antioxidant power of plasma was mildly but significantly higher in the test groups, other antioxidant parameters remained unaffected, except for an increased level of total SH groups. Based on our observations, there will most likely be no significant influence of the consumption of anthocyanin-rich wheat on the metabolism of xenobiotics and drugs.
- MeSH
- anthokyaniny farmakologie MeSH
- antioxidancia metabolismus MeSH
- hmotnostní přírůstek účinky léků MeSH
- jaterní mikrozomy enzymologie MeSH
- lidé MeSH
- messenger RNA genetika MeSH
- oxidační stres MeSH
- potkani Wistar MeSH
- pšenice genetika metabolismus MeSH
- stravovací zvyklosti účinky léků MeSH
- systém (enzymů) cytochromů P-450 genetika metabolismus MeSH
- xenobiotika metabolismus MeSH
- železité sloučeniny metabolismus MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
- Publikační typ
- abstrakt z konference MeSH
- MeSH
- financování organizované MeSH
- Publikační typ
- abstrakty MeSH
The aim of this trial was to compare the effect of long-term supplementation of goats with different forms of selenium on body reserves of selenium in their kids at the time of weaning. Thirty-three pregnant goats were divided into five groups. Group C was control while the other four groups were supplemented with selenium (Se) for 6 weeks before parturition (0.3 mg/goat/day) and after parturition (0.9 mg/goat/day). Group "Se-I" received sodium selenite and three other groups received organic forms: "Se-L," lactate-protein complex; "Se-P," Se-proteinate; and "Se-Y," Se-yeast. The kids were weaned at 3 months of age and samples of tissues (liver, pancreas, myocardium, lungs, kidneys, spleen, thigh, tongue, and diaphragm) were taken after slaughtering. The long-term supplementation of goats with Se influenced Se concentration in all examined tissues of kids. Significant differences (p≤0.01) were found between the control and all experimental groups, except for the renal cortex and pancreas (Se-I). The average increase of Se concentration in overall examined tissues in comparison with the control (100%) was as follows: Se-Y, 192%; Se-P, 167%; Se-L, 161%; Se-I, 144%. The highest efficiency was found in the group supplemented with Se-yeast with a high content of selenomethionine, also the other two organic forms of Se were more efficient than the inorganic form.
- MeSH
- bránice chemie MeSH
- játra chemie MeSH
- jazyk chemie MeSH
- kozy MeSH
- ledviny chemie MeSH
- odstavení MeSH
- plíce chemie MeSH
- potravní doplňky škodlivé účinky MeSH
- selen škodlivé účinky analýza MeSH
- selenomethionin analýza MeSH
- těhotenství MeSH
- zvířata MeSH
- Check Tag
- těhotenství MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
The aim of the experiment was to study zinc concentration in goat's milk during a short-term oral supplementation of three organic and one inorganic form of zinc and the influence of Zn supplementation on the concentration of Zn and Cu in blood plasma. The experiment involved 31 lactating goats. The group C was the control, group L received zinc lactate, group A received zinc chelate, group T received amino acid-polypeptidic complex with zinc, and group O received zinc oxide. Zinc preparations were administered orally in 500 mg Zn per animal for 28 days. In the course of the experiment, Zn concentration in plasma increased significantly in all experimental groups and in the control group was unchanged. The concentration of zinc in milk during the experiment fluctuated in individual groups, but there were no significant differences between groups. After 28 days of Zn supplementation, Zn concentration in milk of goats was similar as at the start of the experiment in all groups. According to our results, the supplementation of different forms of zinc did not influence the concentration of Zn in milk, but significantly influenced the Zn concentration in blood plasma. The efficiency of different organic and inorganic forms of zinc was similar.
- MeSH
- kozy MeSH
- krevní plazma účinky léků metabolismus MeSH
- měď krev MeSH
- mléko účinky léků metabolismus MeSH
- zinek krev metabolismus farmakologie MeSH
- zvířata MeSH
- Check Tag
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
The effect is described of selenium supplemented in an inorganic and organic form on the innate immune response of goats. Though the phagocytic activity (as a marker of the immune function) was found to be lower in organic-Se-treated group than in control (54.5 +/- 4.32 vs. 60.2 +/- 9.15 %), it did not generally exhibit any significant differences; similarly, no differences were found in the phagocytic index. The production of reactive oxygen species (ROS) was determined using the luminol-enhanced chemiluminescence (CL) (estimated as peak CL, integral CL and a peak time after addition of calcium ionophore A23187, opsonised zymosan (OZP) and phorbol-12-myristate-13-acetate as effectors. A significant ROS increase reflected in integral CL and a peak time was found in the inorganic-Se-treated group when OZP was used as activator; other parameters did not exhibit significant changes. The supplementation of Se in inorganic form can thus be seen to influence positively the innate immune system of kids.
- MeSH
- anorganické látky aplikace a dávkování MeSH
- fagocytóza účinky léků MeSH
- financování organizované MeSH
- imunologické faktory aplikace a dávkování MeSH
- kozy MeSH
- organické látky aplikace a dávkování MeSH
- přirozená imunita účinky léků MeSH
- reaktivní formy kyslíku metabolismus MeSH
- selen aplikace a dávkování MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
