XXXX supplementation of reduced-protein diets improves pulmonary hypertensive response in broiler chickens reared at high altitude.

@entity8561 @entity146 @entity120 @entity534 @entity842 @entity414
UNASSIGNED: This study was conducted at high altitude (2100  m above sea level). A total of 208 d-old male broilers (Ross 308) were randomised across 16 floor pens and reared up to 42 d. A normal-protein diet (NPD) was formulated according to the National Research Council. A @entity146 ( @entity146 ) was prepared with dietary protein reduced by 30  g/kg relative to that of the NPD. Two additional diets were prepared by adding 2 and 4  g  @entity8561 ( @entity534 )/kg to the @entity146 . At the end of trial (42 d), blood sampling was done and carcass characteristics were recorded. @entity534 supplementation of the @entity146 at 4  g improved feed:gain in the growing stage and throughout the trial compared with the @entity146 . The right-to-total ventricular weight ratio was significantly increased in birds fed on @entity146 compared with those fed on NPD or @entity534 -supplemented @entity146 . Feeding @entity146 caused a significant decrease in plasma concentrations of @entity842 (NO) and @entity414 . Plasma NO level, however, was restored by @entity534 supplementation of @entity146 . @entity534 supplementation of @entity146 , however, significantly reduced the rate of @entity120 syndrome mortality compared to the negative control fed on @entity146 .
