Matúš Gašparík

• Doctor of Philosophy
• PostDoc Position at Czech University of Life Sciences Prague

In this study, the influence of microclimatic conditions in different seasons of the year (including the hottest months) on the quantitative and qualitative characteristics of ejaculates of Czech Holstein bulls was assessed. Bulls were kept in the facility with no forced ventilation or air conditioning. To determine the influence, the temperature-h...

Simple Summary Teat morphology, milking-induced changes in teat structures, and the connection of these factors to milking parlor settings, milkability, and udder health have been heavily researched and discussed over recent decades. Ultrasonography is an invaluable tool in research; however, its practical application on the farm is limited. Nevert...

Milk production and the efficiency of dairy cow breeding are significantly influenced by reproductive factors. The purpose of our research was to examine the relationships between selected milk production and reproductive parameters. We evaluated 659 dairy cows, including 444 purebreds from the Czech Fleckvieh and Holstein breeds and 215 crossbreds...

Simple Summary Multiple studies have investigated the relationship of teat morphology, and udder health and milkability. Nevertheless, it is crucial to examine how the dimensions of teat structures influence teat tissue changes during milking. The short-term changes in teat structures that result from machine milking are yet to be completely unders...

The aim of this study was to propose and verify a scoring system for the evaluation of udder susceptibility to mastitis, which combined five influential teat traits into one overall score for the udder. The traits included barrel diameter, apex diameter, canal length, the change in wall thickness, and the change in apex diameter. Teat morphology of...

Simple Summary One of the most significant global health threats to humanity is the loss of the therapeutic effects of antibiotics, which several factors, such as the overuse of antibiotics in livestock farming, can cause. The European Union has not let this threat go unnoticed and has decided to regulate the use of antibiotics in farm animals with...

The work aimed to evaluate the growth ability of Czech Fleckvieh bulls in the conditions of modern stable based on their breeding lines. A total of 94 bulls were included in the experiment. The growth curve, weight at standardized ages, and weight gain were evaluated. The average weight of fattened bulls ranged from 109.43 kg at the age of 90 days...

The aim of this study was to monitor milkability traits of Jersey cows over the course of lactation, and to investigate how milkability characteristics affected milking induced teat prolongation (MITP; %). For the purpose of the experiment, milkability parameters and teat length of 43 Jersey cows were monitored throughout the lactation. The effects...

The main objective of this research communication was to explore the extent of milkability changes caused by the incidence of clinical mastitis. Our second objective was to investigate if the milkability of cows shortly before mastitis incidence significantly differed in comparison with healthy cows. Milk yield, milking time, average milk flow, par...

This work aimed to evaluate the quantity and the quality of flushed embryos based on the metabolic status of dairy cows, lactation number, and size of the ovaries. Fifty-nine Holstein cows on 1^st to 5^th lactation were enrolled in the experiment. Monitoring took place during the period from October to November and from March to...

The aim of this study was to evaluate differences in milkability based on lactation peak and parity in Holstein cattle. Milk yield, actual milking time, milking time differences, occurrence of bimodal milk flow, average and partial milk flows within the first two minutes of milking were monitored for each milking during the first 120 days in milk (...

The aim of this study was to monitor the Czech Aberdeen Angus population for backfat thickness (BT), musculuslongissimus lumborum et thoracis (MUSCLE) and live weight (LW) in relation to environmental and genetic conditions. In this study, we also wanted to display the potential for future inclusion of these parameters into national monitoring. Par...

The objective of this study was to evaluate the influence of negative energy balance on fatty acids proportion in the milk of Czech Fleckvieh cows after calving. Milk quality was determined based on fatty acid group proportion. Milk quality was evaluated in relation to selected negative energy balance (NEB) traits: body condition change (DEC) and m...

Rumination time is one of possible parameters for observing not only feed management and health status, but also some reproductive characteristics such as heat or periparturient period. The evaluation of rumination time in this study was done on Holstein dairy cows in period around heat (n = 297) and around parturition (n = 322) during one year. SA...

Factors consequential to milking-induced teat prolongation (MITP) were identified. Effects of breed, teat position, lactation number, lactation stage and their interactions were evaluated. The length of each teat before and after milking was measured seven times during lactation in 59 Holstein cows and 45 Jersey cows. Rear teats seemed to prolong m...

The aim of this work was to evaluate growth potential of Blue‑Grey cattle in Czech conditions as the compare its growth traits to initial population. Suitability of specific conditions was evaluated based on growth ability and daily weight gains (DWG). Tested breeds included Shorthorn, Galloway and their crossbred variation called Blue‑Grey cattle....

The objective of our experiment was to evaluate the impact of teat length on milk yield, actual milking time (AMT), milk conductivity (MC), somatic cell count (SCC) and mastitis incidence during lactation. The effect of teat length was evaluated as the occurrence of non-ideal teats (NIT; shorter than 40 mm or longer than 60 mm) at udder level and a...

The aim of this work was to evaluate influence of milking settings optimization on milk yield (MY), milking time (MT), average milk flow (AMF) and somatic cell count (SCC). Pulsation ratio was changed from 60:40 to 63:37; pulsation rate from 60 to 62 pulses per minute; and critical milk flow for automatic cluster remover (CMF) was decreased from 0....

The aim of this study was to evaluate growth ability (weight, daily weight gains) and selected carcass characteristics during fattening period of Wagyu × Aberdeen Angus crossbred steers (F1). A total of 72 animals were evaluated over a period of 4 years. The observed animals were monitored from rearing (8 months) to slaughter (30 months). Statistic...

The aim of this study was to evaluate the influence of udder and legs formation on longevity traits (average lactation at culling, lifelong production) and milk production (maximum amount of milk per lactation, fat content in % and kg, protein content in % and kg) in Czech Fleckvieh, Montbeliarde and their crossbreds. Total 2725 culled Czech Fleckv...