A field study to demonstrate the impact of high temperatures in Al- Diwaniya province on ISA Brown

[摘要] This study aims to describe the impact of high temperatures in the tropics on laying hens ISA Brown and thus to reduce the economic losses caused by this effect.The present study was conducted on two fields from the fields of laying hens have been vaccinated according to a program for vaccines fixed did not get injured during the the experimental period was calculated morbidity daily throughout the year.It was evident from the statistical analysis that for the month of significant effect on the morbidity proportion, with the highest rates morbidity in the Oval test, June, July and was the highest morbidity in July amounted to 11.04% at a temperature (30-33.8 m) and recorded less morbidity rate in January as they hit 0.468 with a temperature 22.4 m. we conclude from this study that there is a correlation between the percentage of morbidity high temperature according to the positive relationship , also it adversely effect the production & weight of egg produced by such birds.

[学科分类] 土木及结构工程学