Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 17

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  thoroughbred breed
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Environmental factors affecting the speed of Thoroughbred horses competing in Poland

100%
Sobczynska M.
Animal Science Papers and Reports
|
2011
|
tom 29
|
nr 4
The study was conducted to examine some factors affecting speed of Thoroughbred horses competing at Polish racecourses. Data on horses’ speed (m/s) in flat races from year 2001 to 2005 comprised 12,643 records for 1,543 Thoroughbred horses competing in 1,876 races. Statistical analysis accounted for fixed effects of distance, age, sex, trainer, competition (defined as number of horses competing within one horse length from the winner at the moment of crossing the finishing line), track condition, weight carried, number of runners in a race and for the random effect of race, rider and horse. Almost all the factors included in the linear model were highly significant (P<0.01), but distance × competition test revealed a significant difference (P<0.05). Average speed of Polish Thoroughbreds and mean distance of the races was 15.57 m/s and 1509.1 m, respectively. Speed of horses decreased when racing distance increased and males were faster than females. Three-year-old horses ran faster (LSM=15.29 m/s) than the 2-year-olds (LSM=15.26 m/s) but slower than 4-year-old and older horses (LSM=15.36 m/s). Condition of the racing track resulted in a difference in Racine speed of 1.13 m/s between fast and heavy assessed track. Least squares mean (LSM) of the Speer without competition between horses was 15.23 m/s, and increased to 15.33 m/s and 15.36 m/s when there were one and two competing horses, respectively. The increase in speed due to competition was highest in 1000 m races. Speed did not significantly differ between one or two competing horses,except at the distance of 1200 m. The horses carrying more weight during a race showed a flower speed (P<0.01). Speed was 0.02 m/s higher for each additional horse in a race. The random race effect was the largest, while the random rider effect the smallest component of variance.
2

Thoroughbred foals' mortality causes during first six months of life. Part I. Effect of parents and prenatal factors

100%
Kulisa M., Makiela K., Dlugosz B., Gaj M.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
|
2009
|
tom 05
|
nr 3
3

Analysis of selected parameters in Thoroughbred mares and foals at the postpartum period

100%
Kulisa M., Makiela K., Maryanska M.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
|
2009
|
tom 05
|
nr 3
4

The Malopolski horse stallions: genetic diversity estimated on the basis of microsatellite DNA and class I markers

100%
Fornal A., Radko A., Nogaj J., Zielinska-Darecka K., Piestrzynska-Kajtoch A.
Folia Biologica
|
2018
|
tom 66
|
nr 2
5

Thoroughbred foals' mortality causes during first six months of life. Part II. Diseases and injuries

100%
Kulisa M., Makiela K., Dlugosz B., Gaj M.
Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
|
2009
|
tom 05
|
nr 3
6

Bayesian analysis of genetic backgrounds of twinning rate in Thoroughbred horses

100%
Skotarczak E., Molinski K., Szwaczkowski T., Dobek A.
Journal of Animal and Feed Sciences
|
2007
|
tom 16
|
nr 4
526-537
7

Estimation of breeding value of English thoroughbred sires in the Czech Republic

100%
Misar D., Pribyl J., Jiskrova I.
Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Zootechnika
|
2000
|
tom 46
The performance of thoroughbred horses results from a long-term selection for maximum gallop speed which is tested in races. Their results enable to evaluate trends in speed development and to estimate the breeding value of thoroughbred sires. Due to a low heritability of recorded race times and their high dependence on climatic, pedological and other factors, the performance of thoroughbred sires is most frequently specified on the base of subsidies, prize money or on the base of results of general handicaps (time form). According to authors of selection models, these performance characteristics have a medium coefficient of heritability. In our model of estimation of breeding value we have used both of them and results of the estimation of breeding value according to the criterion general handicap (GH) with a index of performance (IDP).
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Parameters influencing prevalence and outcome of tendonitis in Thoroughbred and Arabian racehorses

84%
Kalisiak O.
Polish Journal of Veterinary Sciences
|
2012
|
tom 15
|
nr 1
Flexor tendonitis and suspensory desmitis are among most prevalent musculoskeletal injuries observed in racehorses. The aim of this study was to determine which horse and race-related parameters can help to diminish the possibility of injury or – when injury has occurred – to evaluate the potential for the horse to continue a successful career after convalescence. Special attention was given to the comparison of Arabian and Thoroughbred racehorses. 187 horses with ultrasonographically visible lesions were included in the study. Following parameters were analyzed: structure (Superficial Digital Flexor Tendon [SDFT], Deep Digital Flexor Tendon [DDFT], Suspensory Ligament [SL]); percentage of cross sectional area increase; hypoechogenic lesion character; in horses with SDF tendonitis – tendonitis grade according to Genovese. This study showed that Thoroughbreds are more at risk of musculoskeletal problems than Arabian racehorses. In both breeds, the most frequent injuries concern SDFT, then SL. Over 95% of tendonitis concern forelimbs. In Thoroughbreds, the prevalence of tendonitis is higher in bigger horses, in males when compared to females and in fence / steeple racehorses when compared to flat track racehorses. The inside limb is more at risk of SDF tendonitis, when the external limb – of SL desmitis. Tendonitis severity increases with age and is greater in steeplechasers when compared to flat track racehorses. The outcome of tendonitis without hypoechogenic lesion is much better than that with hypoechogenic lesion. Evaluation of hypoechogenic lesion length is an easy and accurate prognosis tool, as the chances of returning to racing drop dramatically with lesions longer than 12 cm.
9

Injuries of limb joints during race training of two-year-old Thoroughbred horses

84%
Dzierzecka M., Charuta A., Wasowski A., Bartyzel B. J., Janiuk I.
Bulletin of the Veterinary Institute in Puławy
|
2008
|
tom 52
|
nr 1
The research material consisted of 850 two-year-old Thoroughbred horses of both sexes representing Polish breeding. The animals came to Race Track in Służewiec to participate in trainings. The animals were observed for the incidence of trauma during the period of four years: from the middle of December 1985 to the end of December 1989. On the basis of the observations, leg injuries were recognised in 513 (60.4%) horses. Total number of injuries was 861 (some horses were injured more than once). In cases of pathologic changes observed in legs or limp, the animals were subjected to detailed orthopaedic examination in Służewiec Horse Hospital in Warsaw. In most cases radiological images were taken to confirm the diagnosis. The fetlock joints were the ones, which were most frequently injured in the horses examined. The incidence of trauma was high and constituted almost half of all the recognised injuries.
10

A note on the incidence of multiple ovulation and multiple pregnancy in Thoroughbred mares

84%
Gorecka A.
Animal Science Papers and Reports
|
2003
|
tom 21
|
nr 4
Multiple ovulations and resulting multiple pregnancies leading to abortions or births of underdeveloped foals are important problems in Thoroughbred reproduction. The incidence of multiple ovulation during one ovarian cycle per mare in 44 Thoroughbred mares was determined by ultrasonic scanning. Twenty-two mares (50%) ovulated two (27.3%) or three (22.7%) dominant follicles during observed follicular phase. Overall 76 dominant follicles were ovulated, including 45 (59.2%) from right and 31 (40.8%) from left ovary. The mares at the age 6-10 years tended to have higher multiple ovulation rate (63.2°/0) than those below 6 or of more than 10 years old (both age groups amounting to 40%). Multiple ovulation rate was found lower in lactating than in non-lactating mares (-16.7 and 51.7%, respectively). No significant differences in the incidence of single vs multiple ovulation were found between the left and right ovary, age, or reproductive status of mares. The pregnancy on day 17 occurred in 7 (15.9%) single-ovulating mares. Twelve multiple-ovulating mares (27.3%) were diagnosed to be pregnant, including 7 (15%) with single and 5 (11.4%) with twin pregnancy. The pregnancy rate did not significantly differ between single- and multiple-ovulating mares.
11

Serum homocysteine and oxidative stress evaluation during exercise in horse

67%
Fazio F., Casella S., Giannetto C., Caola G., Piccione G.
Polish Journal of Veterinary Sciences
|
2009
|
tom 12
|
nr 2
169-174
The aim of the present work was to evaluate the influence of exercise on serum homocysteine and oxidative stress in Thoroughbreds during official races. For our study, ten Thoroughbred mares, 5 years old and clinically healthy, were used. The horses were trained to take part in an official 2100 meter race. Reactive oxygen species (dROMs), antioxidant barrier (Oxy-adsorbent), thiol antioxidant barrier (SHp) and homocysteine (sHcy) were investigated. Blood samples, collected from each horse at rest, immediately after the race, and 30 and 180 min after the end of the race, were collected by jugular venipuncture using vacutainer tubes with no additive for the assessment of dROMs, Oxy-adsorbent and SHp by means of a UV spectrophotometer, while serum total Hey values were determined by high performance liquid chromatography with fluorimetric detection and isocratic elution. Statistical analysis, one way repeated measures analysis of variance (ANOVA), followed by Bonferroni's test, showed statistical differences (P<0.05 was considered statistically significant) for all parameters studied. Moreover, a coefficient of linear correlation (r) was computed for values of dROMs and sHcy for all sampling times but a significant linear regression (r = 0.94) was found only after the race. The variations of sHcy, dROMs, Oxy-adsorbent and SHp during the experimental period considered suggest the important role of oxidative status in the athletic horse. The systematic analysis of oxidative stress and its influence on homocysteine levels contribute to the clinical evaluation and assessment of the athletic performance of the horse.
12

Effect of single vs multiple ovulations on oestrous behaviour and pregnancy rate in Thoroughbred mares

67%
Gorecka A., Jezierski T.
Animal Science Papers and Reports
|
2003
|
tom 21
|
nr 1
A relatively high rate of multiple ovulation and resulting multiple pregnancies are one of main problems in Thoroughbred reproduction. The aim of the study was to examine the relationship between the intensity of oestrous behaviour and incidence of multiple (MO) vs single (SO) ovulations in 47 Thoroughbred mares. The frequency of five distinct receptive and 12 non-receptive behavioural traits was analysed. For quantitative analysis of sexual behaviour an 8-point behavioural score (BS) expressing increasing mare’s sexual receptivity was used. MO occurred in 48.9% of ovarian cycles observed. Neither frequencies of receptive behaviours, nor BS differed significantly between MO and SO mares. Overall pregnancy rate per one ovulatory cycle was estimated as 40.4%. Pregnancy rate was higher in MO mares (52.2%) as compared to SO mares (29.2%); however, the difference was not proved significant.
13

Comparison of plasma biochemical parameters in Thoroughbred and Purebred Arabian horses during the same-intensity exercise

67%
Kedzierski W., Bergero D.
Polish Journal of Veterinary Sciences
|
2006
|
tom 09
|
nr 4
The objective of the present study was to compare changes of blood parameters induced by the same work and performed in the same conditions in two racehorse breeds, Thoroughbred and Purebred Arabian. The effect of moderate-intensity exercise was studied in 20 stallions - ten Thoroughbreds, aged 2-3 years and the same number of Purebred Arabians, 3-4 years old. All the horses were administrated the same effort test consisting in 1200 m gallop at a speed typical of the daily training sessions. Three jugular venous blood samples were collected for each horse: at rest, just after the end of the gallop and after 30-minute rest. In the gathered blood, a hemoglobin (Hb) concentration was determined as well as plasma level of glucose (Gic), triacylglycerols (TG), glycerol, free fatty acids (FFA), total plasma proteins (TP) and the activity of creatine kinase (CK), lactate dehydrogenase (LDH) and aspartate aminotransferase (AST). In the Arabian horses, an increase in levels of TP, glycerol, FFA and CK activity measured just after exercise was higher than that in Thoroughbreds. Similarly, after a 30-minute rest, a post-exercise rise of TP, AST, glycerol and FFA proved to be higher in the Arabian horses compared to that in the Thoroughbreds. Only TG plasma concentration measured 30 minutes following the effort was significantly lower in the Arabian horses than in Thoroughbreds. It can be concluded that the Thoroughbred horses adapted better to the effort test applied in this study as compared to the Purebred Arabian horses. The parameters related to lipid metabolism proved to be the most sensitive indicators of breed differences in relation to moderate-intensity exercise.
14

Rrruszyły..! ... idzie nowe

51%
Pawelec-Zawadzka I.
Araby
|
2008
|
nr 3(11)
15

Wiosna na torze

51%
Goclowski P.
Hodowca i Jeździec
|
2020
|
tom 18
|
nr 3
16

Kto czyta, nie błądzi

51%
Goclowski P.
Hodowca i Jeździec
|
2019
|
tom 17
|
nr 1
17

Tak się zaczęło...

43%
Budny J.
Araby
|
2009
|
nr 4(16)
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.