Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Rideau Arcott"'
Publikováno v:
Canadian Journal of Animal Science. 101:134-142
The goal of this study was to estimate genetic parameters and predict direct and correlated response to selection for lamb growth traits and ewe reproductive traits, based on single-trait selection or combining multiple traits in an optimum index tha
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Autor:
Charlotte Sir, Pawel M. Bartlewski
Publikováno v:
Livestock Science. 131:119-124
Synchronization of parturition in a commercial flock of sheep has many advantages including the maintenance of the efficiency of the operation as well as optimization of care for periparturient animals. In a research setting, using an ovine model for
Autor:
Rodrigo Manjarín, Delma Kennedy, S A Hershorin, Alexandra M. Livernois, A M Emond, Erin Massender, Angela Cánovas
Publikováno v:
Journal of Animal Science. 96:261-261
Autor:
David L. Thomas
Publikováno v:
Animal, Vol 4, Iss 8, Pp 1283-1296 (2010)
The five Northern European short-tailed sheep breeds present in North America are the Finnsheep, Romanov, Icelandic, Shetland and Gotland. The Finnsheep and Romanov were first imported in 1966 and 1986, respectively, for their high reproductive perfo
Publikováno v:
Small Ruminant Research. 82:144-148
It has been suggested that elevated concentrations of ovarian steroids during superovulatory treatment may be a cause of poor superovulatory yields in ewes. The aim of this study was to examine the correlations between daily serum concentrations of e
Autor:
Okimi Peters, W. Allan King
Publikováno v:
SURG Journal. 1:20-25
The detection of the SRY (Sex-determining region on the Y chromosome) gene is a popular method used for the identification of freemartins (XX/XY female chimeras). This method relies on the fact that the SRY gene is a Y chromosome specific gene and is
Autor:
D.P. Heaney, J.N.B. Shrestha
Publikováno v:
Small Ruminant Research. 49:79-96
Lamb productivity of various purebreds and crossbreds were evaluated at the Centre for Food and Animal Research (formerly Animal Research Centre). Breeds included one newly developed synthetic sire and two dam strains of sheep (Arcott breeds) selecte
Publikováno v:
Livestock Production Science. 71:241-251
Test-day milk yield records (1752) of 451 first-lactation ewes in four flocks from Nebraska and Wisconsin were analyzed. Breeds included crosses among Dorset, Romanov, Targhee, Rideau Arcott, Polypay, Booroola Merino, Suffolk, Rambouillet, Finnsheep
Autor:
Brace, Matthew David
In cattle, nearly all heifers born co-twin to a male are XX/XY chimeras exhibiting a characteristic freemartin phenotype. However, in sheep where mixed-sex litters are common, freemartins are relatively rare. The purpose of this study was to determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______453::9145457b326b1f62195064469d949c74
https://hdl.handle.net/10214/20070
https://hdl.handle.net/10214/20070