Zobrazeno 1 - 10
of 53
pro vyhledávání: '"A. G. Levis"'
Autor:
A D Kline, J F Selicorni, A Bisgaard, A Deardorff, M A Gillett, S L Kerr, L M Levin, A V Mulder, P A Ramos, P F Axtell, N Cereda, A Costantino, A Cormier-Daire, V Fitzpatrick, M Groves, L Guthrie, W Huisman, S Kaiser, F J Koekkoek, G Levis, M Mariani, J P Menke, L A Metrena, A O'connor, J Oliver, A L Quaglio, E Richman, C Shi, Balkom, Van, I D C Hennekam, Shelley, Lauren, Royston, Rachel, Oliver, Chris, Kline, Tonie, Fitzpatrick, David, Harris, Bjorn, Knight, Steve, Peaford, Alan, Harris, Jules, Axtell, David, Blockley, Charlie, Peaford, Sara, Blockley, Natalie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6102e9ba8ba19e73eb4492c37b42dfa6
Publikováno v:
Theriogenology. 70:1202-1208
This survey included 44 boar studs from Canada and the USA with a total of approximately 10,000 boars. Studs with 51-500 boars accounted for 84% of respondents. More than 90% of boars were housed in stalls. Evaporative and mechanical cooling systems
Publikováno v:
Journal of Lipid Research, Vol 3, Iss 2, Pp 222-228 (1962)
White blood cells and plasma from normal and leukemic subjects were incubated in the presence of acetate-1-C14. The distribution of radioactivity in six lipid fractions of cells and plasma was measured. Leukemic leukocytes incorporated the highest pe
Externí odkaz:
https://doaj.org/article/881179884fe74cbfbf382db39e81b85b
Autor:
Robert V. Knox, T. J. Safranski, W. L. Singleton, N. L. Sloter, K. A. Mcnamara, T. J. Gall, Donald G. Levis, S. L. Rodriguez Zas
Publikováno v:
Journal of animal science. 91(1)
A survey was performed to assess whether reproductive management differed among small-sized (Sm,500 sows), medium-sized (M, 501 to 2,000 sows), and large-sized (Lg, 2,001 to 8,000 sows) farms (n=113). Farms with 501 to 4000 sows/barn were most freque
Autor:
L G, LEVIS
Publikováno v:
Anales de cirugia. 4
Autor:
D G, Levis
Publikováno v:
Veterinary Clinics of North America: Food Animal Practice. 8:517-532
The mating management of pigs is conducted under a wide spectrum of management techniques because females are variously hand-mated, pen-mated, or artificially inseminated. Factors that may affect the onset of estrus when hand-mating are boar exposure
Autor:
Darwin L. Reicks, Donald G. Levis
Publikováno v:
Theriogenology. 70(8)
The objective was to monitor sperm counts and bacterial presence on randomly pooled semen doses over 3y and to determine effects on the farrowing rate and total born in two large farm systems, each serviced by their own boar stud. Sperm counts were d
Autor:
Donald G. Levis, Darwin L. Reicks
Publikováno v:
Theriogenology. 63(2)
The importance of sexual behavior and factors influencing sexual behavior of AI boars has received minimal study. The majority of studies reviewed used a very small number of boars. A sexual behavior index (SBI) has been developed for naturally matin
Publikováno v:
Journal of animal science. 75(2)
This study used three separate methods to evaluate sexual behavior in boars previously classified as having high (H), intermediate (INT), or low (L) levels of sexual behavior. Boars were initially evaluated for sexual behavior at 9.6 to 10.6 mo of ag
Autor:
A, Russo, A G, Levis
Publikováno v:
Progress in clinical and biological research. 372