The Effects of F Strain Mycoplasma gallisepticum, Mycoplasma synoviae, and the Dual Infection in Commercial Layer Hens over a 44-Week Laying Cycle When Challenged before Beginning of Lay. I. Egg Production and Selected Egg Quality Parameters
Autor: | Branton, S. L., Lott, B. D., May, J. D., Maslin, W. R., Boyle, C. R., Pharr, G. T. |
---|---|
Zdroj: | Avian Diseases, 1997 Oct 01. 41(4), 832-837. |
Databáze: | JSTOR Journals |
Externí odkaz: |