The present study deals with the comparison of the impact of gender on selected production parameters of rabbits in conditions of intensive farming. Followed by an analytical evaluation of live ...weight differences between male and female hybrid subjects, and a confrontation of observed results with those published in professional and scientific publications. In particular time periods we compared the values of live weight of both sexes. At the 35 days of age live weight of both sexes were almost balanced, but in the 56th day we observed a slight difference in the values of live weight between the sexes. In the last time period, from the 77th to 105th day, the offspring of both sexes reached higher live weight, while we once again identified just small differences in the values of body weight between the two sexes. Over the whole period, we found a slightly higher live weight of males, but the differences between these values are minimal. This means, there is no statistically significant difference between males and females. In terms of statistical significance, we therefore found that the both sexes are growing equally, thus guiding the sex of new-born offspring, is in principle ineffective.
The aim of this study was to evaluate chosen reproductive traits of synthetic broiler rabbit line. The numbers of 7 reproductive traits were analysed. The synthetic broiler rabbit lines produced from ...local broiler population and Belgian Giant White sire rabbit were the object of analysis in our study. Number of total born young, lactation at 21st day, number of weaned (35), mortality and relative mortality, litter weight at birth and litter weight at weaning were analysed in experiment. The experiment was carry out in intensive farm conditions with controlled microclimate in wire cages, fed with balanced granulated mixture. Reproduction was provided by artificial insemination, heating and ovulation were stimulated by exogenous hormones. Kindlings were spontaneous and regulated lactation was applied. Following obtained values of analysed lines are presented in results. The average of total number of born in lines F1, B1, B2, B2.1 were 7.9; 9.08; 10.25 and 7.75 respectively. Weaning was carry out at the age of 35 days, and the average numbers of weaned young were: 6.35; 7.75; 8.85; 5.25. The mortality up to weaning reach average numbers 1.55; 1.08; 1.5; 2.5 pieces and 18.42; 15.13; 13.97; 33.72 %. The weights of litter at born reach values 240 -- 955 g. The weight of litter at weaning in each line was 4876.25; 5940.5; 7165; 4471.88 g. Lactation at 21th day reaches average numbers 3257.25; 6837.5; 4511.0; 3707.5 g.
The initial live weight of the body is considered a very important factor influencing the growth traits and the final body weight. The differences are expressive especially in species of large ...litters and short period of fattening. The large litters are the precondition of different live weights of the youngs. Especially the large litters with more than ten alive youngs produces youngs of different live weight. The aim of this study was to evaluate the influence of live weight at born on growth traits of synthetic broiler rabbit line. The 3rd generation of giant sire line with the basis of Belgian Giant White rabbit and local standard broiler population (M91) was tested in this experiment. Animals born in 18 litters were individually marked and weighted at birth day, 35th day, 84th day and at the age of 105 days. All animals were consequently divided in eight groups according to the live weight at born. The average growth rate of each groups was evaluated. The lowest average live weight at weaning (35th day) was 846.25 g in group 1 and the highest live weight was 1093.18 in group 8 with significant differences between groups (P-value = 0,0000 at the 95,0 % confidence level). Similar results were determined also at the age of 84 days, when the lowest weight was obtained in group 2 and the highest weight in group 8 with average weight 2442,50 g; 3173,64 g resp. Significant differences with P-value = 0,0000 at the 95,0 % confidence level. The 105th day is considered as the age of sexual maturity. The lowest body weight reached group 3 and the highest live body weight was in group 8 with average value 2913.50 g and 3701.82 g resp. The significant differences were determined as well with P-value = 0.0000 at the 95.0 % confidence level.
The aim of the study was to evaluate the influence of sex on content of some chosen fatty acids in wild boar venison. Soxhlet method of extraction and gravimetric method were used. Relative content ...of fatty acids in clear intramuscular fat was determined by gas chromatography with flame ionization detector on Agilent 689A GC apparatus. Analyses of each fatty acid show differences in all samples of meat being analysed. The differences are as follows: the average values reached 0,81 % in males and 0,82 % in females in alpha – linolenic acid, the average values reached 15,86 % in males and 14,01 % in females in linoleic acid, the average values reached 2,71 % in males and 2,98 % in females in palmitoleic acid. No statistical significance were determined in this differences (P>0.05). The next analyses show follow differences: the average values reached 43,15 % in males and 44,62 % in females in oleic acid, acid the average values reached 0,42 % in males and 0,48 % in females in arachidonic, significant importance (P<0.05) were determined. According to our result we can state that gender present relevant factor influencing the fatty acids content in intramuscular fat in some fatty acids.
The paper abstract will be written with Times New Roman 10 pt., justify. It will contain maximum 200 words. A concise and factual abstract is required. The abstract should state briefly the purpose ...of the research, the principal results and major conclusions. An abstract is often presented separately from the article, so it must be able to stand alone. For this reason, references should be avoided, but if essential, then cite the author(s) and year(s). Also, non-standard or uncommon abbreviations should be avoided, but if essential they must be defined at their first mention in the abstract itself.
Due to environmental pollution, wild animals are exposed to various pollutants. Some game animals, such as wild boars are used by people for food, but their meat is not evaluated regarding pollution ...transfer, since they are unavailable on the official market. The aim of this paper is to present the concentrations of chosen metals (Cd, Co, Cu, Hg, Pb, and Zn) in the kidneys, liver, and muscles of wild boars (
n
= 40) hunted in eastern Slovakia, as derivatives of physiological distribution and anthropogenic pollution. We found that sex was not a statistically significant factor for metal concentrations. Tissue differences were observed for all the metals studied except for Co. Cd, Cu, and Hg showed the highest median concentrations in kidney tissue with the lowest in muscle tissue (2.73, 3.78, and 0.061 μg/g w.w., respectively). The highest Zn median concentration was noted in the liver tissue with the lowest in muscle tissue. Co and Cu concentrations varied according to the age groups. Correlations between metal concentrations in muscle and kidney tissue were not especially strong; such relationships were not found in liver tissue. Among all the potential relationships of the given metal concentrations between tissues, the only significant relationship, albeit weak, was noted for Pb in muscle and liver tissue. The concentrations found seem not to be extremely high, but according to EU maximum permitted residue levels for Cd and Pb concentrations in meat, none of the samples studied was fully fit for human consumption. TWI and risk was also excessive for both metals.
The aim of our study was to determine the effect of age on protein, fat and water content in venison of wild boar (Sus scrofa). The musculus semimembranosus was sampled for the analyses. Monitoring ...of wild boar was realized in November and December 2016 in hunting region JXXVIII Tribeč (Western Slovakia, mountain range of Tribeč). Analysis of basic nutritive components of venison were determined with FoodScan LAB Analyzer (FOSS, Denmark) – NIR technology. The highest obtained average value of fat content was detected in piglets 4.45%, the lowest average value was in one year old individuals, 2.85%. There was no statistically significant difference in fat content (P˃0.05).The highest average value of protein content was found out in two years old animals and presents 23.31%. The lowest value was determined in group of piglets that reached 22.08%. A statistically significant difference was determined in protein content values (P<0.05). The lowest average value of water content was found out in the group of three years old individuals (69.87%) and the highest content, 72.47% in one year old group in the water content. There was no statistically significant difference (P˃0.05) in water content of venison. However, the age is still considered as a factor influencing the meat quality also from the point of view of human nutrition both of chemical traits.
Wild animals like pheasant seem to be a good source of information about human activities. Therefore, the wild pheasants and relative stable appendix microcenosis were selected for antibiotic ...resistance testing. Penicillin resistance by MALDI-TOF Mass Spectrometry and tetracyclines resistance by genetic methods using specific primers were tested. Differences between tetracycline and penicillin resistance were detected. Results showed high prevalence of resistant Escherichia coli isolated from wild pheasant appendix. E. coli isolated from wild pheasant appendix carried plasmids for penicillins and tetracyclines resistance where they were responsible for enzymatic degradation of penicillin and carried genes for regulating efflux pumps for tetracyclines. Results showed that tetracyclines and penicillins resistance is widespread between wild pheasants with a carrier as Escherichia coli isolated from relative stable microcenosis of appendix.
The aim of this experiment was to obtain the differences in protein, moisture and fat content in venison (Mucsulus semimembranosus) of roe deer (Capreolus capreolus L.) and wild boar (Sus scrofa L). ...The monitoring of wild boar and roe deer was realized from 16 May 2016 to 16 June 2016 in red deer region JXXVIII Tribeč (Western Slovakia, Tribeč mountain). Analysis of basic nutritive components of venison were determined with FoodScan LAB Analyzer (FOSS, Denmark). The obtained average values of experimental traits were as follows: wild boar – 23.33%, roe deer – 21.55% in protein, respectively 2.46% and 1.8% in fat. The difference in fat content shows significant importance. Moisture was not statistically significant (average: wild boar – 73.2%, roe deer – 72.9%).
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