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%).

In the last decade, the pig sector in Slovakia has been changing continuously, especially in regard to the proportion of pigs coming from foreign breeding programs. These changes lead to changes in carcass characteristics and to a change in the distribution of carcasses within the classes of the Union scale for the classification of pig carcasses. Therefore, this study was undertaken to analyse the actual state of pig carcass classification in the Slovak Republic and to investigate the needs of updating the equations for the classification methods and possible steps to improve the quality of pork produced within the country. Results showed that an increased number of pig carcasses originated from Danish breeding program, and also from the Czech Republic and Poland. When compared to carcasses in 2009, these changes resulted in lower backfat thickness and higher muscle thickness of the longissimus dorsi muscle and thus higher lean meat content of carcasses. This results in a higher number of carcasses classified in the S and E classes. Slight differences between two instrumental classification methods were calculated. The study showed the need for updating the equations for classification methods, and also suggested possible further steps in order to improve the quality of pork.

The present study aimed at comparison of chemical composition, meat quality and sensory parameters of cow's meat and meat from bulls produced under Slovak conditions and sold in retail of Slovakia. The analysis was performed on 181 cows and 78 bulls. Cows were also divided in two groups according to age at slaughterover (n = 135) and/or under 4 years (n = 46). The meat samples were taken in eight slaughter houses located in the western, central and eastern part of Slovakia. The age of cows slaughtered had significant effect (P < 0.05) on the most meat quality and sensory traits which were evaluated much more worse in older cows with comparison to bulls than in younger cows. Older cows had lower content of proteins and water in meat, lower pH 7 and colour parameter "L" as well as worse evaluation of all sensory parameters in comparison to bulls (P < 0.05). On the other hand, intramuscular fat content, energetic value of meat, marbling, pH 48 , colour parameter "a" and cooking loss were higher in meat of older cows than bulls (P < 0.05). Differences in traits observed between younger cows and bulls were statistically significant (P < 0.05) only for content of proteins and water, pH 48 , colour parameter "a", cooking loss and evaluation of odour. The hypothesis of significantly poorer meat and eating quality is justified in the case of cows over 4 years. The study did not confirm the decreasing age of cows at slaughter as suggested previous studies. vykonaná na 181 kravách a 78 býkoch. Kravy boli rozdelené do dvoch skupín podľa ich veku pri porážke: nad 4 roky (n = 135) a do 4 rokov (n = 46). Odbery boli vykonané na ôsmich bitúnkoch lokalizovaných na západnom, strednom a východnom Slovensku, aby poskytli čo najreprezentatívnejšiu vzorku. Vek porážaných kráv mal preukazný vplyv (P < 0,05) na chemické zloženie mäsa ako aj na väčšinu kvalitatívnych a senzorických ukazovateľov, ktoré boli výrazne horšie hodnotené v skupine starších kráv v porovnaní s býkmi než v skupine mladších kráv. Pre skupinu starších kráv bol charakteristický nižší obsah vody a bielkovín v mäse, nižšie pH 7 , hodnota farby "L", ako aj nižšie hodnotenie senzorických parametrov mäsa v porovnaní s býkmi (P < 0,05). Naopak, obsah intramuskulárneho tuku, energetická hodnota mäsa, mramorovanie, pH 48 , hodnota farby "a" a straty grilovaním boli vyššie v mäse starších kráv než v mäse býkov (P < 0,05). Rozdiely v chemickom zložení mäsa, v kvalitatívnych a senzorických parametroch medzi mäsom mladších kráv a mäsom býkov boli preukazné (P < 0,05) iba v obsahu bielkovín, vody, farby "a", pH 48 , stratách grilovaním a vo vôni. Hypotéza o preukazne horšej kvalite mäsa a konzumnej kvalite je opodstatnená v prípade kráv starších ako 4 roky. Štúdia taktiež nepotvrdila znižujúci sa vek kráv pri porážke ako bolo zistené v predchádzajúcich štúdiách.Kľúčové slová: býky, hovädzie mäso, kravské mäso, kvalita mäsa, senzorické vlastnosti Detailný abstrakt Na Slovensku v poslednom období narastá podiel kráv na celkovom počte porážaného hovädzieho dobytka. Niektor...

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Licensed under a Creative Commons Attribution 4.0 International LicenseThis study was conducted to evaluate the selected fattening characteristics, carcass parameters and analysing of parameters associated with the meat quality of twenty Holstein male calves fed with different diets. Calves were after weaning divided into two groups with respect of feeding; control group fed with untreated total mixed ration (TMR) and experimental group, which received industrially dried alfalfa hay. Calves of both groups were after about 193 days slaughtered in the experimental abattoir. Subsequently, after chilling for 24 hours, detailed dissection of the right -carcass half was performed. For the nutritional characteristics, physical technological parameters and sensory properties, slices of loin (M. longissimus thoracis) and top round (M. semimembranosus) muscles were taken 24 hours post mortem. The average daily gains were higher in the experimental group of calves (P >0.05). Although calves of the control group had higher dressing percentage (50.23%; P >0.05), no significant differences were determined in the carcass weight (P >0.05). Proportions of some of intraabdominal fats were influenced by feeding concept; calves of alfalfa hay treated group had lower proportion of intestinal fat (P >0.05) and higher proportion of kidney fat (P >0.05). Differences in total amount of meat from right -half carcass were not significant (P >0.05); proportion of separable fat was higher in the experimental group of calves. In terms of individual valuable meat cuts, higher proportion of tenderloin was determined in the group fed with alfalfa hay (1.80%); however results were no significant. Statistical significant variety at the level P <0.05 were revealed in the moisture content, intramuscular fat content and energy value. The loin muscle from experimental group was lighter (CIE L*; P >0.05) 24 hours post mortem.