keyword
MENU ▼
Read by QxMD icon Read
search

Equine Breeding

keyword
https://www.readbyqxmd.com/read/29345072/genetic-monitoring-of-horses-in-the-czech-republic-a-large-scale-study-with-a-focus-on-the-czech-autochthonous-breeds
#1
L Putnová, R Štohl, I Vrtková
We propose the first comprehensive in-depth study monitoring horses in the Czech Republic. We scanned 9,289 animals from 44 populations for 17 equine STRs. Other equids analysed involved Equus przewalskii and Equus asinus. The total of 228 different alleles were detected, with the mean number of 13.4 per locus. The highest allelic richness (AR) was found in the Welsh Part Bred (6.01), followed by the Camargue (5.93) and Czech Sport Pony (5.91), whereas the Friesian exhibited the lowest AR (3.06). Interpopulation differences explained approximately nine per cent of the total genetic diversity...
February 2018: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/29345071/detecting-selection-signatures-on-the-x-chromosome-of-the-chinese-debao-pony
#2
X-X Liu, J-F Pan, Q-J Zhao, X-H He, Y-B Pu, J-L Han, Y-H Ma, L Jiang
The X chromosome shows a special interaction between demographic factors and genetic variation, and the analysis of X-linked genomic variation can therefore provide insights into the unique effects of demography and selection on the horse genome that cannot be readily detected by autosomal markers. Debao (DB) ponies have experienced intense selective pressure for the development of their small stature (<106 cm at adult height). To identify selective sweeps on the X chromosome of the DB pony, we performed a genome-wide scan of three Chinese horse breeds using an Equine SNP70 BeadChip...
February 2018: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/29341906/lateralization-of-mother-infant-interactions-in-wild-horses
#3
Karina Karenina, Andrey Giljov, Yegor Malashichev
The manifestation of behavioural lateralization has been shown to be modified by environmental conditions, life experiences, and selective breeding. This study tests whether the lateralization recently found in feral domestic horse (Equus caballus) is evident in undomesticated horses. Mother-offspring interactions were investigated in Przewalski's horse (E. ferus przewalskii) living in their natural habitat in Mongolia. Lateral position preferences during mare-foal spontaneous reunions were used as a behavioural marker of visual lateralization...
January 13, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29341455/microsatellite-markers-for-evaluating-the-diversity-of-the-natural-killer-complex-and-major-histocompatibility-complex-genomic-regions-in-domestic-horses
#4
C Horecky, E Horecka, J Futas, E Janova, P Horin, A Knoll
Genotyping microsatellite markers represents a standard, relatively easy and inexpensive method of assessing genetic diversity of complex genomic regions in various animal species, such as the major histocompatibility complex (MHC) and/or natural killer cell receptor (NKR) genes. MHC-linked microsatellite markers have been identified and some of them were used for characterizing MHC polymorphism in various species, including horses. However, most of those were MHC class II markers, while MHC class I and III sub-regions were less well covered...
January 17, 2018: HLA
https://www.readbyqxmd.com/read/29322061/histopathological-study-of-esophageal-infection-with-gasterophilus-pecorum-diptera-oestridae-in-persian-onager-equus-hemionus-onager
#5
Seyed Mohammad Hoseini, Bahram Ali Zaheri, Mohamad Ali Adibi, Hooman Ronaghi, Amir Hossein Moshrefi
Background: The larval stages of Gasterophilus are obligate parasites in the gastrointestinal tract of equine accountable for pathologic ulcers in the Persian onager gastrointestinal. The aim of the current report was to study the histopathological change with G. pecorum larvae in the esophagus of a Persian onager. Methods: This study was performed in Iranian Zebra propagation and breeding site in Khartouran National Park, southeast of Shahrud City, Semnan Province, Iran in 2014...
September 2017: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/29279085/tick-borne-infections-in-dogs-and-horses-in-the-state-of-esp%C3%A3-rito-santo-southeast-brazil
#6
Fernanda de Toledo Vieira, Igor Cunha Lima Acosta, Thiago Fernandes Martins, Jonas Moraes Filho, Felipe da Silva Krawczak, Amália Regina Mar Barbieri, Leandro Egert, Danieli Rankel Fernandes, Fabio Ribeiro Braga, Marcelo Bahia Labruna, Reynaldo Dietze
This work aims to identify and quantify the percentage of Rickettsia spp., Ehrlichia spp., Babesia spp. and Hepatozoon spp. positive pet dogs, and to identify ticks collected on these animals in the state of Espírito Santo, in the Southeast region of Brazil. The study included 378 dogs, 226 females and 152 males, of various breeds and ages (mean age of 4.1 years). All animals were examined for ticks, and whole blood was collected and processed by conventional PCR protocols for Babesia spp., Anaplasmataceae, Hepatozoon spp...
January 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29198956/effects-of-staining-method-and-clinician-experience-on-the-evaluation-of-stallion-sperm-morphology
#7
Ruby Yoana Murcia-Robayo, Eleonore Jouanisson, Guy Beauchamp, Mouhamadou Diaw
Evaluation of sperm morphology is part of the assessment of fertility in human and animal reproduction. Analyses can be performed using different techniques, including the use of staining methods In our prospective study, the morphology of equine sperm was evaluated using 3 staining methods Diff-Quik, eosin-nigrosin, and SpermBlue, the latter being a relatively new stain commonly used for human sperm. Our hypotheses were that (1) SpermBlue allows easier assessment of horse sperm morphology and facilitates better identification of sperm abnormalities, and (2) sperm morphology classification differs depending on the evaluator's experience...
November 29, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29196493/intracytoplasmic-sperm-injection-in-domestic-and-wild-mammals
#8
Daniel Felipe Salamone, Natalia G Canel, Maria Belén Rodriguez
Intracytoplasmic sperm injection (ICSI) has become a useful technique for clinical applications in the horse breeding industry. However, both ICSI blastocyst and offspring production continues to be limited for most farm and wild species. This article reviews technical differences of ICSI performance among species, possible biological and methodological reasons for the variable efficiency and potential strategies to improve the outcomes. One of the major applications of ICSI in animal production is the reproduction of high value specimens...
December 1, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29195115/effect-of-dietary-carbohydrates-and-time-of-year-on-acth-and-cortisol-concentrations-in-adult-and-aged-horses
#9
S I Jacob, R J Geor, P S D Weber, P A Harris, M E McCue
Diagnosis of equine pituitary pars intermedia dysfunction (PPID) remains a challenge as multiple factors (stress, exercise, and time of year) influence ACTH and cortisol concentrations. To assess endocrine status in a study designed to evaluate the effects of age and diet on glucose and insulin dynamics, we performed thyrotropin-releasing hormone (TRH) stimulation tests and overnight dexamethasone suppression tests in March, May, August, and October on 16 healthy Thoroughbred and Standardbred mares and geldings...
November 1, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29175012/osteogenic-differentiation-of-equine-adipose-tissue-derived-mesenchymal-stem-cells-using-cacl2
#10
Mohamed I Elashry, Nadine Baulig, Manuela Heimann, Caroline Bernhardt, Sabine Wenisch, Stefan Arnhold
Adipose tissue derived mesenchymal stem cells (ASCs) may be used to cure bone defects after osteogenic differentiation. In this study we tried to optimize osteogenic differentiation for equine ASCs using various concentrations of CaCl2 in comparison to the standard osteogenic protocol. ASCs were isolated from subcutaneous adipose tissue from mixed breed horses. The osteogenic induction protocols were (1) the standard osteogenic medium (OM) composed of dexamethasone, ascorbic acid and β-glycerol phosphate; (2) CaCl2 based protocol composed of 3, 5 and 7...
November 21, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29154176/seasonal-changes-in-the-sperm-fatty-acid-composition-of-shetland-pony-stallions
#11
Christine Aurich, Cristina Ortega Ferrusola, Fernando Juan Peña Vega, Nadine Schrammel, David Morcuende, Jörg Aurich
Spermatozoa contain polyunsaturated fatty acids (PUFA). Cryopreservation damages sperm membranes and they become less functional after thawing. We analysed the lipid composition of spermatozoa from Shetland stallions (n = 15) collected monthly from January to June and hypothesized that sperm lipid patterns change with season. In addition, one ejaculate per month was submitted to cryopreservation. Content of saturated palmytic and stearic acid decreased from January to March (p < 0.001) while content of the PUFA docosapentaenoic (p < 0...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29153167/a-100-year-review-reproductive-technologies-in-dairy-science
#12
S G Moore, J F Hasler
Reproductive technology revolutionized dairy production during the past century. Artificial insemination was first successfully applied to cattle in the early 1900s. The next major developments involved semen extenders, invention of the electroejaculator, progeny testing, addition of antibiotics to semen during the 1930s and 1940s, and the major discovery of sperm cryopreservation with glycerol in 1949. The 1950s and 1960s were particularly productive with the development of protocols for the superovulation of cattle with both pregnant mare serum gonadotrophin/equine chorionic gonadotrophin and FSH, the first successful bovine embryo transfer, the discovery of sperm capacitation, the birth of rabbits after in vitro fertilization, and the development of insulated liquid nitrogen tanks...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29146097/descriptive-study-of-current-therapeutic-practices-clinical-reproductive-findings-and-incidence-of-pregnancy-loss-in-intensively-managed-thoroughbred-mares
#13
B V Rose, M Firth, B Morris, J M Roach, D C Wathes, K L P Verheyen, A M de Mestre
Therapeutic practices in equine reproductive medicine have dramatically evolved over the last 20 years but current usage is not described. The aims of this study were to provide a description of medication use and clinical findings of reproductive examinations alongside measures of reproductive efficiency in thoroughbreds. A prospective cohort study was conducted in the 2013 and 2014 breeding seasons. Mare and stallion details, information on veterinary interventions and findings of reproductive ultrasound scans were collected using questionnaires and entered into a custom-designed Microsoft Access database...
November 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29134689/effectiveness-of-controlled-internal-drug-release-device-treatment-to-alleviate-reproductive-seasonality-in-anestrus-lactating-or-dry-barki-and-rahmani-ewes-during-non-breeding-season
#14
M Y El-Mokadem, Anm Nour El-Din, T A Ramadan, A M Rashad, T A Taha, M A Samak, M H Salem
This study aimed to evaluate the effectiveness of hormonal treatments on ovarian activity and reproductive performance in Barki and Rahmani ewes during non-breeding season. Forty-eight multiparous ewes, 24 Barki and 24 Rahmani ewes were divided into two groups, 12 lactating and 12 dry ewes for each breed. Controlled internal drug release (CIDR) device was inserted in all ewes for 14 days in conjunction with intramuscular 500 IU equine chronic gonadotrophin (eCG) at day of CIDR removal. Data were analysed using PROC MIXED of SAS for repeated measures...
November 14, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29115996/serological-evidence-of-equine-arteritis-virus-infection-and-phylogenetic-analysis-of-viral-isolates-in-semen-of-stallions-from-serbia
#15
Sava Lazić, Diana Lupulović, Delphine Gaudaire, Tamas Petrovic, Gospava Lazić, Aymeric Hans
BACKGROUND: Equine arteritis virus (EAV) is responsible for infections in equids. It can spread easily within the horse population and has a major impact on the horse breeding industry. No EAV outbreak has ever been reported in Serbia. To determine whether EAV is nonetheless circulating there, especially in the Vojvodina region, 340 horse serum samples were subjected to serology testing to detect EAV antibodies. In parallel, semen samples from three seropositive stallions were collected to evaluate their EAV status, using RT-qPCR and virus isolation on cell culture...
November 7, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29115950/the-prevalence-of-ocular-diseases-in-polish-arabian-horses
#16
Katarzyna Paschalis-Trela, Anna Cywińska, Jan Trela, Michał Czopowicz, Jerzy Kita, Lucjan Witkowski
BACKGROUND: Equine ocular diseases pose a medical challenge due to long-lasting and cost-consuming therapies as well as economic issues associated with potential decrease in value of affected horses. The scale of the problem is significant but difficult to precisely define because epidemiological data is limited and lacks consistency in presentation. To date, no retrospective studies specifically investigating Arabian horses have been published. RESULTS: The aim of this cross-sectional study was to investigate the prevalence of ocular lesions and define the ocular diseases present in Arabian horses from breeding farms in Poland...
November 7, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29111285/reference-values-of-two-dimensional-and-m-mode-echocardiographic-measurements-as-a-function-of-body-size-in-various-equine-breeds-and-in-ponies
#17
A Al-Haidar, N Moula, A Leroux, F Farnir, S Deleuze, C Sandersen, H Amory
INTRODUCTION: The aim of this study was to establish echocardiographic reference values for the equine species using allometric regression equations based on body weight (BW) and thoracic circumference (TC). ANIMALS: A total of 239 horses or ponies were studied, including 65 warmbloods, 33 Standardbreds, 41 Thoroughbreds, 32 Arabian horses, 28 draft horses, and 40 ponies aged from 1 day to 30 years, weighing from 18 to 890 kg, with no evidence of cardiac disease...
October 27, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29103698/development-of-a-multilocus-sequence-typing-scheme-for-rhodococcus-equi
#18
Fabien Duquesne, Emilie Houssin, Corinne Sévin, Lucille Duytschaever, Jackie Tapprest, David Fretin, Laurent Hébert, Claire Laugier, Sandrine Petry
Rhodococcus equi causes pulmonary and extrapulmonary infections in animals and humans, with endemic situations and significant young foal mortality in stud farms worldwide. Despite its economic impact in the horse-breeding industry, the broad geographic and host distribution, global diversity and population structure of R. equi remain poorly characterised. In this context, we developed a multilocus sequence typing (MLST) scheme using 89 clinical and environmental R. equi of various origins and eight Rhodococcus sp...
October 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29103563/genetic-testing-as-a-tool-to-identify-horses-with-or-at-risk-for-ocular-disorders
#19
REVIEW
Rebecca R Bellone
Advances in equine genetics and genomics resources have enabled the understanding of some inherited ocular disorders and ocular manifestations. These ocular disorders include congenital stationary night blindness, equine recurrent uveitis, multiple congenital ocular anomalies, and squamous cell carcinoma. Genetic testing can identify horses with or at risk for disease and thus can assist in clinical management. In addition, genetic testing can identify horses that are carriers and thus can inform breeding decisions...
December 2017: Veterinary Clinics of North America. Equine Practice
https://www.readbyqxmd.com/read/29094427/dermoscopic-analysis-of-the-skin-of-healthy-warmblood-horses-a-descriptive-study-of-34-cases-in-italy
#20
Sara Legnani, Eric Zini, Paola Roccabianca, Beatrice Funiciello, Giordana Zanna
BACKGROUND: Dermoscopy is a diagnostic tool that has been introduced into small animal dermatology for the evaluation of hair and the skin surface. To the best of the authors' knowledge, the use of this technique on horses and the dermoscopic appearance of equine hair and skin have yet to be reported. HYPOTHESIS/OBJECTIVES: To assess the feasibility of dermoscopy, and to describe hair and skin surface features of healthy warmblood horses. ANIMALS: Thirty four client-owned, healthy adult horses...
November 1, 2017: Veterinary Dermatology
keyword
keyword
54321
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"