Formação e estrutura populacional do eqüino Brasileiro de Hipismo

Dias, I.M.; Bergmann, Jose Aurélio García; Rezende, Adriana Conti; Castro, Gioconda

doi:10.1590/s0102-09352000000600016

Cited by 19 publications

(15 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As pointed out by Dias et al (2000), this breed has been produced from various different breeds and, consequently, there is a large genetic variability. Thus, this genetic variability can explain the divergent phenotypic characteristics found by applying different formulas for the animal-performance indices in this study.…”

Section: Angular Measurement Correlation Tendencymentioning

confidence: 99%

See 1 more Smart Citation

Morphometric measurements and animal-performance indices in a study of racial forms of Brazilian Sport Horses undergoing training for eventing

et al. 2017

View full text Add to dashboard Cite

-This study aimed to evaluate, in a practical manner, the use of linear and angular measurements and different animal-performance indices in a study on the breed-specific conformation of Brazilian Sport Horses training for eventing. These data can form the basis for the development of future studies based on the parameters evaluated and the calculations made. Seventeen Brazilian Sport Horses training for eventing were selected. Morphometric evaluations were made of all animals using linear and angular measurements. The linear measurements were withers, croup, and barrel heights; body, croup, shoulder, neck, and head lengths; head, chest, and hip widths; distance from the elbow to the ground and from the sternum to the ground (empty substernal); and thorax, forearm, knee, fetlock, and fore cannon girths. The angular measurements were shoulder-ground, shoulder-humerus, humerus-radius, metacarpus-phalanx, coxae-ground, coxae-femur, femur-tibia, and tibiametatarsus angles. Thirteen animal-performance indices were calculated to have a better understanding of the conformation of the animals and their proportions: the relationship between the withers and croup heights, chest index, dactyl-thoracic index, estimated weight, body index, thoracic index, conformation index, load index 1, load index 2, relative body index, compactness index 1, compactness index 2, and meloscopic index. Brazilian Sport Horses in eventing training were within the expected conformation for an athletic horse, but the animal-performance indices differed among them because they are heterogeneous horses resulting from crossing among various different breeds. The use of linear and angular measurements allows the correct characterization of racial forms of Brazilian Sport Horses undergoing training for eventing. Animal-performance indices can be useful in a study of a breed-specific conformation of athletic horses.

show abstract

Section: Angular Measurement Correlation Tendencymentioning

confidence: 99%

“…The Brazilian Sport Horse breed began to appear in 1977, influenced by the English Thoroughbred, Hanoverian, Westphalian, Holsteiner, and Trakehner breeds, which contributed to its great genetic variability with an inbreeding coefficient close to zero (Dias et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Morphometric measurements and animal-performance indices in a study of racial forms of Brazilian Sport Horses undergoing training for eventing

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The Brazilian sport horse came into existence in 1977 by crossing the Thoroughbred, Hanoverian, and Westfalen breeds (Dias et al, 2000). Reference standards for athletic horses bred and kept in tropical climates, however, have not been determined.…”

Section: Introductionmentioning

confidence: 99%

Blood biochemical parameters of Brazilian sport horses under training in tropical climate

et al. 2017

View full text Add to dashboard Cite

-This study aimed to provide baseline data for the serum biochemical parameters of Brazilian sport horses undergoing physical training for eventing to be used as a practical guide. A total of 139 blood samples were collected by vacuum venipuncture of the jugular vein from healthy horses in training. Tubes without anticoagulant were used for biochemical analysis. Means and standard deviations were determined for aspartate aminotransferase (AST) (306.27±84.66 U/L), creatine kinase (CK) (181.06±80.38 U/L), urea (29.51±5.82 mg/dL), creatinine (1.44±0.20 mg/dL), gamma glutamyl transferase (GGT) (14.58±6.55 U/L), calcium (13.22±0.59 mg/dL), and albumin (2.86±0.16 g/dL). The specific reference ranges were: AST, 197-454 U/L; CK, 116-290 U/L; urea, 22-42 mg/dL; creatinine, 1.2-1.8 mg/dL; GGT, 9-26 U/L; calcium, 12.2-14.2 mg/dL; and albumin, 2.6-3.1 g/dL. Beneficial effects of the training program on the horses were observed and these effects did not lead to any changes in the biochemical parameters studied. The environment may influence the serum biochemical parameters, particularly AST and CK, of Brazilian sport horses.

show abstract

“…New BASE are no longer registered. Dias et al (2000) analysed genealogical data of BH registered between July 1977 and September 1998. The authors described the breed composition in the data bank as being 23% BH horses; 22% with unknown genealogy, 15% THB; 8% Hanoverian; 5% Westfalen; 5% Holsteiner and 4% Trakehner, the latter all European (mainly German) breeds of horses known for their success in sport competitions.…”

Section: Introductionmentioning

confidence: 99%

Brazilian Sport Horse: Pedigree Analysis of the Brasileiro de Hipismo Breed

Medeiros

Bértoli

Garbade

et al. 2014

Italian Journal of Animal Science

View full text Add to dashboard Cite

Brasileiro de Hipismo (BH) represents an open population that permits genetic input from breeds recognised by the World Breeding Federation for Sport Horses. The aim of this study was the genetic characterisation of the population as the first of a series aiming at the consolidating the current selection programme. The Brazilian Association of the Brazilian Sport Horse Breeders provided genealogical data from 1977 to 2011. A data bank containing 34,393 horses was analysed for population genetic parameters including: individual inbreeding (F), effective population size (Ne), effective number of founders (fe), effective number of ancestors (fa), and number of founder genome equivalents (fg). Analysis were run twice: for animals born until 1995 (PREVIOUS) and for those born in the last 15 years (15YEARS). Ne estimated via paired increase in coancestry consisted of 188.59 (±3.24) animals. fe was 466 and 222 for PREVIOUS and 15YEARS, respectively. Ancestors were represented by fa of 274 and 129. Mean F for 15YEARS was 0.6%; 1444 animals were inbred, with mean inbreeding of 3.33%. The difference found in fa and fe parameters, between PREVIOUS and 15YEARS, indicated the loss of original alleles. The increase in contribution from some founders represents the breeder's preference for a few horses, without the negative effect of high inbreeding levels. Brasileiro de Hipismo genetic variability agrees with its large based formation history, and should allow for genetic gain of heritable traits through selection.

show abstract

Formação e estrutura populacional do eqüino Brasileiro de Hipismo

Cited by 19 publications

References 2 publications

Morphometric measurements and animal-performance indices in a study of racial forms of Brazilian Sport Horses undergoing training for eventing

Morphometric measurements and animal-performance indices in a study of racial forms of Brazilian Sport Horses undergoing training for eventing

Blood biochemical parameters of Brazilian sport horses under training in tropical climate

Brazilian Sport Horse: Pedigree Analysis of the Brasileiro de Hipismo Breed

Contact Info

Product

Resources

About