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pro vyhledávání: '"Callahan, Stuart Russell"'
Autor:
Callahan, Stuart Russell
In U.S. swine herds, sow removal rates due to death and voluntary and involuntary culling exceed 50% annually. This loss poses an economic problem for producers because the cost of acquiring replacement females is great. Although research has shown t
Externí odkaz:
http://hdl.handle.net/10919/23900
We previously reported that reduced floor space allowance caused by increasing the number of gilts per pen decreased growth and affected blood chemistry and immunology. The current objective was to determine effects of nursery group-size-floor space
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2485::9a284113ebde6bda9019d139dc96028e
https://hdl.handle.net/10919/104572
https://hdl.handle.net/10919/104572
Autor:
Clark-Deener, Sherrie, Lugar, Drew William, Rhoads, Michelle, Callahan, Stuart Russell, Prusa, Ken J., Estienne, Mark J.
The objective was to determine the effects of immunization against gonadotropin releasing hormone on reproductive characteristics in boars. Seventy-two boars were used in a randomized design with three treatments: single immunization (SI) or double i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2485::df6ec1cb1eead5a8699de762719d8532
https://hdl.handle.net/10919/73920
https://hdl.handle.net/10919/73920