|
|
Vliv délky a způsobu transportu jiker na jejich líhnivost u hlavatky obecné (Hucho hucho)
BERÁNEK, Lukáš
The success of transporting both unfertilized and fertilized artificially stripped ova of huchen from the farm for up to 5 days was tested. A mixture of ova from 8 females was divided into two parts. The first part was inseminated with artificially stripped sperm (a mixture from several males) on-site (1 hour after stripping), and after rinsing the fertilized ova with water, it was placed in water in a plastic sealable container. The second part of the ova, along with the ovarian fluid, was not inseminated with sperm and was placed in another identical container. Both containers were stored in a thermal insulation box for the following 5 days, including transportation from the site of artificial stripping to the incubation site. The mixture of collected sperm from 5 males was stored in syringes in a separate isothermal box at a temperature of +4°C. Both thermal insulation boxes were placed in the luggage compartment of a passenger car for 5 days. For the ova transported in water, the water was exchanged twice a day. Throughout the first day, both the ova and sperm were transported from the site of artificial stripping to a distance of 350 km to the incubation site. In the following days, the car was driven three times a day for at least 0.5 hour each time to simulate vibrations occurring during transportation. The ambient temperature for the ova during transportation was maintained at 10°C. Samples of both fertilized and unfertilized ova were taken at one-day intervals from the artificial stripping, and after counting and fertilization of the ova with transported sperm, they were rinsed and placed in small incubation dishes with separate water inflows and perforations allowing water flow and preventing the escape of subsequently hatched embryos. Thirty ova were always placed in each variant, with 3 repetitions in all variants. The incubation dishes were placed on the bottom of a shallow flow-through channel supplied with water from a recirculating system with cold-water fish farming. The average water temperature during incubation was 12.8°C. Mortality of the ova was monitored during incubation, white unfertilized or dead ova were removed, and hatching of the embryos was recorded. In the first variant, after stripping the fertilized ova transported in water for one, two, or three days, a hatchability of 32.2 ? 21.1%, 27.8 ? 10.3%, and 33.3 ? 32.1%, respectively, was achieved. After simulated transportation for four and five days, the hatchability decreased to 21.1 ? 1.57% and 15.6 ? 8.3%, respectively. The differences between all the aforementioned parameters are not statistically significant. In the second variant, with unfertilized ova transported in ovarian fluid, a comparable hatchability (34.4 ? 11%) was achieved after one day of transportation, as with fertilized ova transported in water for one to three days. Unfertilized ova transported in ovarian fluid for a longer period (two and three days) showed a statistically significant decrease in hatchability to 7.8 ? 8.8% and 2.2 ? 1.6%, respectively. A 100% mortality rate was found for ova transported in unfertilized ovarian fluid for four and five days. No differences were found in the length of the incubation period due to different methods or lengths of ova transportation. The experiment demonstrated the feasibility of using transportation of fertilized ova in water for several days, with transportation of fertilized ova in the aquatic environment being preferable.
|
|
|
Analysis of Critical Points in the Transportation of Hazardous Substances by Road
Fidrichová, Ivana ; Dostál, Ivo (referee) ; Adamec, Vladimír (advisor)
Diploma thesis focuses on the analysis of critical points in the transport of hazardous materials on the basis of which there is given a methodology for selecting safe routes. Thethesis includes statistical data on the total performance in the transport of hazardous materials within the EU states as well as specifies the proportion of transport performance of hazardous materials to the total performance among the individual European countries. For Czech Republic, the thesis also presents a statistical overview of the accident rate associated with this kind of transport as well as deals with the causes and consequences of the accidents occured during the transportation.
|
|
|
Safety Management System for Transport of Materials and Dangerous Substances
Klímová, Zdeňka ; Krejčí, Libor (referee) ; Adamec, Vladimír (advisor)
The task this master’s thesis was evaluated present status safety management system for transport of materials and dangerous substances. I looks this issues like whole in The theoretical part. I want to find all kritical locations. I analysis type of transport, transport routs, driver training, legislation and label the most transport of materials and dangerous substances. I want to found the risk to remove or cushion. I want to proposed preventive measures in the practical part.
|
|
|
Ramps for trailer for buildings machines transport
Dvořáček, Michal ; Ješina, Miroslav (referee) ; Škopán, Miroslav (advisor)
The aim of my dissertation on the subject of raids on trailer for transport of construction equipment is to propose a functional concept of rear split folding ramps for trailer construction machines with tracked and wheeled landing gear. Raids are designed as a two-part, hydraulically tilting. With an appropriate mechanism to ensure a correct function of the ramp end part at tilting. Maximum weight of the machine is 21 000 kg and departure angle is 10 °. This thesis was composed with cooperation SVAN ltd.
|
|
|
Engineering design of conveyor
Chmelík, Jiří ; Čípek, Pavel (referee) ; Foltýnová, Dana (advisor)
The bachelor thesis deals with the design of a conveyor for transporting welded beams with variable dimensions. At the beginning of the work are listed some conveyors, which are commonly used in practice. Following analysis of available design solutions, design designs of equipment, their description and based on comparison was chosen the most suitable design solution. In the course of work is performed safety analysis of selected nodes. At the end of the work is evaluated the whole construction and elaborated the drawing documentation of the device. The proposed solution can also be used to transport parts of similar shapes.
|
|
| |
|
| |
|
|
Conceptual design of the trailer body
Chalupa, Pavel ; Malášek, Jiří (referee) ; Kubín, Martin (advisor)
This thesis is a conceptual design of the trailer body which is intended to transport sporting goods, especially bicycles, skis and boats. It contains an overview of current transportation options mentioned sporting goods and a conceptual design of the trailer body which will serve to transport all these sporting goods. The body will be placed on trailers currently offered.
|
|
| |
|
|
The Studies of Import Logistics Distribution Organization for Manufacturing Businesses
Veselý, Leoš ; Tesař, Rostislav (referee) ; Jurová, Marie (advisor)
This thesis deals with the general principle of technology as a partial freight logistics center services ČSAD Hodonín, as The paper first lists and describes the activities related to the operation of logistics centers, which are further supplemented by an analysis of the operation, focusing on the loading, unloading and transfer batches of different manufacturing companies. This thesis is further supplemented by a theoretical approach with potential applications in the actual operation. The result is then draft general technological progress in the transportation of goods from the factory to the logistics center using its own freight.
|
guest ::
