Physical and clinicopathologic findings in foals derived by use of somatic cell nuclear transfer: 14 cases (2004–2008)

Johnson, Aime K.; Clark‐Price, Stuart C.; Choi, Young Ho; Hartman, David L.; Hinrichs, Katrin

doi:10.2460/javma.236.9.983

Cited by 43 publications

(38 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In equine reproduction, production of embryos using somatic cells as the source of nuclear transfer is nowadays both a research tool and a clinical service (Hinrichs, ). Although the number of cloned foals was small in 2012 (estimated at 100–200 worldwide; Hinrichs, ), Johnson, Clark‐Price, Choi, Hartman, and Hinrichs () reported that only 26% of cloned embryos resulted in the birth of a live foal.…”

Section: Breeding Of Sports‐and Companion Animals: Dogs Cats and Homentioning

confidence: 99%

Ethics in animal breeding

Farstad

2018

Reprod Domestic Animals

View full text Add to dashboard Cite

Contents Ethical breeding involves the use of healthy animals true to their species in behaviour and physical appearance, and when applicable, showing a sustainable performance. The concerns for the species/breed are essential parts of the breeding goals, including preservation of genetic resources within the species/breed, and the health and welfare of the individual animal. Ethical and welfare considerations were often not prioritized in developing new breeds of production or companion animals. As a result, animal breeding practices are increasingly becoming part of the debate on animal welfare. In companion animals, breeding for curiosity or “cuteness” may be a goal in itself, although dogs are also bred for utility. In production animals, breeding focus is on performance, i.e., quantitative entities and financial income, rather than physical appearance. For instance, dairy cows are bred to be larger and to have higher milk yields, sows and ewes to produce more offspring, and horses are designed for riding, racing, and companionship. Overbreeding in relation to current demand of horses, cats, and dogs raises welfare issues due to abandonment or killing of horses and millions of cats and dogs every year. There is variable regulation of health requirements for breeding animals in different countries of the world. In many countries, consumers are becoming increasingly aware of animal welfare issues such as negative effects of certain production traits in farm animals, leading to decreased demand for their meat at a time where increased food production is becoming crucial. Amidst these dilemmas are the veterinarians. This paper deals with issues connected to traditional breeding as well as some of the breeding technologies, and includes food safety, ethics, and animal welfare.

show abstract

Section: Breeding Of Sports‐and Companion Animals: Dogs Cats and Homentioning

confidence: 99%

Ethics in animal breeding

Farstad

2018

Reprod Domestic Animals

View full text Add to dashboard Cite

show abstract

“…Only the groups led by Katrin Hinrichs in the USA (Hinrichs ; Johnson et al . ) and Cesare Galli in Italy (Galli et al . ; Lagutina et al .…”

Section: Are There Welfare‐based Reasons Which Make Animal Cloning Unmentioning

confidence: 99%

“…Hinrich's group (Johnson et al . ) reported that 26% of cloned embryos transferred by them resulted in the birth of a live foal, whereas Galli and coworkers reported that three live foals resulted from transfers of more than 100 cloned embryos (Galli et al . ; Lagutina et al .…”

Section: Are There Welfare‐based Reasons Which Make Animal Cloning Unmentioning

confidence: 99%

Is cloning horses ethical?

Campbell

2016

Equine Veterinary Education

View full text Add to dashboard Cite

SummaryThis paper assesses whether cloning horses is ethical by reviewing ethical arguments against cloning of nonequine species and determining whether they apply to horses, analysing ethical arguments about horse cloning which do not apply to noncompetitive species and considering the ethical dilemmas faced by veterinarians involved in horse cloning. The author concludes that concerns about the health and welfare of cloned horses render the technique ethically problematic and that the onus is on those providing commercial equine cloning services to collate data and provide a stronger evidence base for ethical decision‐making.

show abstract

“…2012). Live births of cloned horse foals have been reported by several groups: eight foals by the group of Galli (C. Galli, Cremona, Italy, personal communication), fourteen foals by Texas A&M University (Johnson et al. 2010), an undisclosed number of cloned foals, stated to be ‘70+’ by ViaGen (as reported by the popular press), and at least two foals of Criollo horses in Argentina (D. Salamone, Buenos Aires, Argentina, personal communication).…”

Section: Current Strategies For Genome Resource Banking In Horsesmentioning

confidence: 99%

Breeding or Assisted Reproduction? Relevance of the Horse Model Applied to the Conservation of Endangered Equids

Smits

Hoogewijs

Woelders

et al. 2012

Reprod Domestic Animals

View full text Add to dashboard Cite

Contents Many wild equids are at present endangered in the wild. Concurrently, increased mechanization has pushed back the numbers of some old native horse breeds to levels that are no longer compatible with survival of the breed. Strong concerns arose in the last decade to preserve animal biodiversity, including that of rare horse breeds. Genome Resource Banking refers to the cryostorage of genetic material and is an approach for ex situ conservation, which should be applied in combination with in situ conservation programmes. In this review, we propose that, owing to the great reproductive similarity among the different members of the genus Equus, the domestic horse can be used to optimize cryopreservation and embryo production protocols for future application in wild equids. We will give this hypothesis a scientific underpinning by listing successful applications of epididymal sperm freezing, embryo freezing, intracytoplasmic sperm injection, oocyte vitrification and somatic cell nuclear transfer in domestic horses. Some ART fertilization methods may be performed with semen of very low quality or with oocytes obtained after the death of the mare.

show abstract

Physical and clinicopathologic findings in foals derived by use of somatic cell nuclear transfer: 14 cases (2004–2008)

Cited by 43 publications

References 33 publications

Ethics in animal breeding

Ethics in animal breeding

Is cloning horses ethical?

Breeding or Assisted Reproduction? Relevance of the Horse Model Applied to the Conservation of Endangered Equids

Contact Info

Product

Resources

About