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Effects of implementation of PEER system to capture poultry
ZEZULA, Libor
This bachelor thesis describe right technological procedures from unloading one day chickens on farm, through their own fattening to catching and loading. There are briefly describe technology, what can accessbility fattening, welfare and right handling with chickens at catching and loading for slaughterhouse. More to it there are describing technologies for catching of chickens their advantages and disadvantages. For comparing I chose complex describing of hand catching to boxes with automatically catching technology PEER including investment to PEER system.
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Surviving of Northern Lapwing (Vanellus vanellus) chicks in agriculture landscape
Kubelka, Vojtěch ; Šálek, Miroslav (advisor) ; Cepák, Jaroslav (referee)
The variability of egg-size within a bird species reflects different reproductive investments and, besides the intrinsic constraints and particular female quality, it can be affected by environmental factors, too. Moreover, the egg-size predetermines the chick performance. The knowledge of factors influencing precocial chick survival is crucial for better understanding of life-history strategies as well as for endangered species conservation. The Northern Lapwing (Vanellus vanellus) represents a suitable model species for investigation of climate variables effects on egg-size and also to study factors influencing chick survival. Eggs in a total of 714 nests were measured during 13 breeding seasons over period 1988-2014 in South Bohemia and 293 lapwing chicks from 100 broods in 37 localities were monitored in 2013-2014. The mean egg-size through the whole season is positively affected by March precipitation, March clutches also negatively by minus temperatures in March. The higher intensity of rainfall there is during March, the bigger eggs are laid in March and the steeper is slope of decline in mean egg-size during season. This decline is more profound with lower rainfall in April. The effect of habitat is not significant. The body mass and condition of hatchlings is positively correlated with the...
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Význam taurinu ve výživě
Široký, Roman
Taurine is a non-essential amino acid occurring as 2-aminoethanesulfonic acid, which has the largest share in animal tissues. Taurine is an amino acid derivative of cysteine is involved in several physiological processes of powerful antioxidant properties. Its deficiency causes damage to the heart muscle. Involved in lipid metabolism and has a positive effect on blood cholesterol. Taurine is used among athletes, which reduces the level of lactic acid. Together with caffeine and guarana with taurine found in energy drinks. For its positive qualities taurine considered as a functional food. In our experiments 400 taps are divided into 8 groups of 50 individuals were from the 10th day of age fed feed mixture BR 1 second BR 2 contains taurine at levels of 0, 250, 500, 750 mg / kg of the mixture. Used blends diets were created as isonitrogenous and isoenergetics. The feeding mixture was carried out on ad libitum in granular form from tube feeders. At the end of the monitoring period were evaluated: growth during the feeding experimental mixtures, consumption and feed conversion and mortality. The difference in final weight between the experimental group of 750 mg / kg of taurine enriched feed mixture and the taurine-free feed mixture was 72 g. Influence of added taurine on growth of chicken describe equation y=2347,8 -0,0941 x (R2=0,9151), where x= mg taurine per kg mixture. How much and at which condition has taurine influence on depression of growth, will be necessarily confirm in the others experiments.
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Využití pícnin ve výživě kura domácího
Anderle, Vojtěch
The aim of the study was to determine nutrient quality of chosen green fodders, to find amount of consumed green fodder and to find the effect of these consumption on chicken performance and carcass quality. In laying hens the aim was to evaluate the effect of feeding green fodders and different ways of their conservation on hens’ performance and egg quality. To fulfill the aims six experiments was carried out. In the first experiment the content of AMEn, apparent ileal digestibility of crude protein and amino acids in clover and rye grass in chicken was estimated. In the second and third experiment the effect of green fodders consumption on chicken performance and carcass quality was observed. In the fourth experiment with chicken free range with pasture was used. In the fifth and sixth the experiments the effect of different green fodders and their conservation on laying hens performance and egg quality were observed.
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Surviving of Northern Lapwing (Vanellus vanellus) chicks in agriculture landscape
Kubelka, Vojtěch ; Šálek, Miroslav (advisor) ; Cepák, Jaroslav (referee)
The variability of egg-size within a bird species reflects different reproductive investments and, besides the intrinsic constraints and particular female quality, it can be affected by environmental factors, too. Moreover, the egg-size predetermines the chick performance. The knowledge of factors influencing precocial chick survival is crucial for better understanding of life-history strategies as well as for endangered species conservation. The Northern Lapwing (Vanellus vanellus) represents a suitable model species for investigation of climate variables effects on egg-size and also to study factors influencing chick survival. Eggs in a total of 714 nests were measured during 13 breeding seasons over period 1988-2014 in South Bohemia and 293 lapwing chicks from 100 broods in 37 localities were monitored in 2013-2014. The mean egg-size through the whole season is positively affected by March precipitation, March clutches also negatively by minus temperatures in March. The higher intensity of rainfall there is during March, the bigger eggs are laid in March and the steeper is slope of decline in mean egg-size during season. This decline is more profound with lower rainfall in April. The effect of habitat is not significant. The body mass and condition of hatchlings is positively correlated with the...
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Analysis of use characteristics of slow growing chicken hybrid
DUPAL, Jan
The main aim of the diploma thesis was to analyze the use characteristics of chicken hybrids with slow growth rate. Following hybrids were analyzed: combination of JA 757, who were fed until 49 days of their age and combination of Pac JA with feed length of 56 days. The average live weight of hybrid combination JA 757 was 2 169 g, the feed consumption per kg of weight gain averaged at 2 119 g and the selection rate reached 0.5%. The combination Pac JA reached live weight at slaughter date of 2 109 g, the feed consumption was 2 366 g and 0.88% chickens was selected. The value of Production Efficiency Factor was higher for the hybrid JA 757 (208) compared with the hybrid Pac JA (158). It was found out that the carcass yield of the hybrid JA 757 was about 3.8% higher (74.7% vs. 70.9%) compared to the hybrid Pac JA. Similarly the weight of the breast muscles reached the weight of 405 g in case of the JA 757 which was 53 g more than in case of the Pac JA (352 g). The leg muscle difference was 132 g in favor of the JA 757 (499 g vs. 367 g) while the weight of abdominal fat was lower by 5.5 g (44 vs. 49.5 g). Therefore it can be stated that the difference was statistically highly significant. Furthermore it was found out that cocks reached higher breast and leg muscle weight than hens of both hybrids. The difference was 33 g and 106 g for JA 757 hybrids and 57 g and 79 g for Pac JA hybrids respectively. Also here the difference was statistically highly significant and statistically significant respectively. Overall the hybrid JA 757 proved to have higher genetic potential in intensity growth and also in carcass utility.
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