Katedra vyzivy zvierat
Katedra vyzivy zvierat
Galik B.,Katedra vyzivy zvierat |
Simko M.,Katedra vyzivy zvierat |
Juracek M.,Katedra vyzivy zvierat |
Biro D.,Katedra vyzivy zvierat |
And 3 more authors.
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis | Year: 2012
The aim of this study was to monitor levels of minerals in mare's colostrum in the fi rst 3 days after foaling. Colostrum samples from four warm-blood mares (in three repetitions) were analysed 2, 12, 24, 36, 48 and 72 hours postpartum. The samples were obtained by hand milking. Calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na), potassium (K), zinc (Zn), copper (Cu), iron (Fe) and manganese (Mn) contents were analysed in each sample. Non-signifi cant decrease of postpartum Ca and Na contents was found in the analysed samples. Signifi cant diff erences (P < 0.05) in P content were detected between 2 and 36 hours postpartum. Content of Mg showed statistically signifi cant diff erences (P < 0.05) during the period after foaling (2, 24, 36, 48 and 72 hours post foaling). Mg concentration reached its maximum (21.8 g.kg -1 of dry matter) 2 hours postpartum and it dropped to its lowest level (5.27 g.kg-1 of dry matter) 48 hours after foaling. Similarly, the highest K content (signifi cant in relation to values obtained 36, 48 and 72 hours postpartum) was detected 2 hours after foaling while the lowest K level (37.96 g.kg-1 of dry matter) was found 48 hours postpartum. As regards the microelements, Cu showed insignifi cant diff erences in its postpartum levels (P > 0.05). Besides growth of Fe levels, decrease of Zn and Mn (P > 0.05) was also observed.
Abdulwahab A.,Katedra Vyzivy Zvierat |
Horniakova E.,Mantikawa 89
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis | Year: 2010
The effect of dried yogurt (Kashik) based on Lactobacillus plantarum and Lactobacillus acidophilus on broiler meat crude protein and fat content and tibial bone mineral composition was studied. The birds were fed diets including probiotics only during the first 21 days of age. The trial groups T1, T2 and T3 were supplied with 1, 3 and 5 % Yoghurt, respectively. The control group was fed with a commercial feed mixture. Breast muscules nutrition quality was not significantly affected (P > 0.05) with Kashik up to day 21. The highest difference was 0.25% (C and T3) in crude protein content and 0.15% in crude fat (C and T2). Also, leg muscles crude protein and fat percentages were not affected by probiotics up to day 21 of age. The values varied from 18.76 to 19.24% and from 5.77 to 6.54% respectively. However, significant differences (P < 0.05) in legs' muscles crude protein (19.05 and 19.92% in C and TI group) and fat contents (4.82 and 6.33%) were observed between the T1 and T3 group up to 40 days of age. No significant effects of probiotics were observed on breast muscles mineral content up to 21 days and 40 days of age. Leg muscles mineral contents were not affected with probiotics up to 21 days, whereas up to 40 days only leg muscles P and Mg content was affected (1.80 and 1.61 g.kg-1 of P in C and T3 group and 0,42 and 0,44 g.kg-1 in C and T1, in Mg, resp.). There were no significant effects of treatments on tibial bone Ca and Mg contents up to day 21. However, tibial bone P content was significantly affected. The addition of 3 and 5 percents of Kashik increased tibial bone P content significantly (98.5 g.kg-1 in T2, 97.0 g.kg-1 in T3) above the value of the control group (80.5 g.kg-1) up to 21 days of age. There were no significant differences between treatment group and the control group in tibial bone P and Mg composition at day 40 of age. The values varied from 86.00 to 93.12% in C and T1 in P and 4.10 to 4.23 g.kg-1 in Mg content. Some significant differences were observed between the treatment group which was supplemented with 1% of Kashik and the control group in tibial bone Ca composition at day 40 of age (213.62 and 229.06 g.kg-1, resp.).