Abstrak 
Level Of Malondialdehyde (MDA), Uric Acid And Lymphocyte: Neutrphyl Ratio Of Laying Hen In The Different Temperature Humidity Index (THI)
D. Latipudin and L. Adriani, R. Permana
Prosiding Seminar Nasional Peternakan Berkelanjutan
Inggris
Diding Latipudin, Kurnia Kamil, dan Andi Mushawwir, Prosiding Seminar Nasional Peternakan Berkelanjutan
H/L, Laying Hen, malondialdehyde, THI, uric acid
This study is conducted to investigate the effect of THI on the concentration of MDA, uric acid blood plasma and lymphocytes: heterophil ratio of laying hen. One hundred laying hens are randomly divided into two treatments, each treatment consist 50 birds. Treatments in this work are two levels of temperature humidity index (THI = 89 and 72), which calculated based on dry and wet bulb thermometer in laying housing, located in Kuningan and Bandung. The experiment period lasted 8 weeks, blood samples were collected weekly. Malondialdehyde, uric acid and lymphocytes: heterophil ratio is recorded by spectrophotometer following Biolabo Kit. Data are analysed using paired t-test method. Based on results of this study, the level of MDA and uric acid significantly increase (P < 0.01) in the high THI (89). On the other hand, lymphocytes/heterophils (H/L) ratio decreases (P < 0.05). These data suggest that high THI (89) contributes of laying stress is caused by the level of temperature and humidity in environment and inside the housing.