The venison is popular for many properties that make it unique, for example, low intramuscular fat (IMF) content, good nutrition and sensory properties. The aim of this study was to determine the difference between sex in carcase traits, chemical and fatty acid composition in different body parts. The meat analysis was performed in 9 stag and 9 doe individuals from the farm breeding in Mokrovraty in Czech Republic. The analysis was carried out on the basis of samples taken from the carcases of fallow deer. Chemical analysis of meat from musculus longissimus lumborum et thoracis (MLLT), musculus semimembranosus (MS) and musculus serratus ventralis (MSV) was performed. The fatty acid analysis was measured in MLLT. Most of the measured carcase weight parameters show sexual dimorphism, however no effect on percentage of main meat parts was detected. From chemical meat composition, the dry matter content was higher (p < .001) in stags compared to does as well as crude protein (p¼ .017). IMF content was not affected by sex. When compare chemical composition of muscles, MLLT and MS had higher dry matter (p¼ .004), ash (p < .001) and lower protein content (p¼ .011) compared to MSV. The fatty acid analyses showed, that stags had significantly higher content of myristic (C14:0; p¼ .015), pentadecanoic (C15:0; p¼ .008), palmitic (C16:0; p¼ .024), margaric (C17:0; p¼ .009) and myristoleic acid (C14:1c9; p¼ .001) in MLLT than does. Sex had no effect on the sums and ratios of fatty acids and atherogenic and thrombogenic index (TI). In conclusion, sex affected mainly weight of carcase and the chemical meat composition.
Sika deer is widely spread species, in Czech Republic mostly occurred in West Bohemia. This species is defined as one of the most harmful ungulate game in the forests. For the wildlife population of sika deer in the microregion Konstantinolázeňsko in West Bohemia, total weight after the hunt, weight after expelling organs, weight of the head and distal parts of the limbs, and weight of the internal organs (heart, lung, liver, spleen, kidney) were determined. Correlations between the weights of specific body parts (organs) were evaluated. Ratio between the weight after expelling organs (after gralloch) and the weight after hunt (total weight) was determined. The weight after expelling organs was 74% of the total weight. Moreover, a positive correlation was found between the age and weight of individuals, and between the male age and the weight of the head. Without taking into account age differences, we show that males have a higher body weight than females, a form of sexual dimorphism.
The suitability of CT and 3D scanners for craniometric proposes was tested using digital calipers when determining linear measurements, and a measuring cylinder was used for the accuracy of 3D printing of deer antlers obtained by the CT and 3D scanners. The resolution of digitized objects from a 3D scanner ranged from 0.008 mm to 0.122 mm. For mandibular dimensions, a positive deviation (p < 0.01) from the primary control measurement was recorded. The average antler volume measured with the cylinder was 60.47 cm3 at the first measurement, in the case of the CT scanner 61.62 cm3 and for the 3D scanner 64.76 cm3—both technologies exhibit a positive deviation from the primary measurement. Precise sensing and measurements can be used to evaluate the quality and evolution of wildlife populations, create digital museum collections, or to examine in detail certain traits such as antler and horn development or dentition.
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