Balvane, 2005 – Nutrition and management of heat-stressed pullets and laying hens
Maximum daily temperatures in excess of 30ºC are common in many table egg producing regions of the world. Such temperatures …
Maximum daily temperatures in excess of 30ºC are common in many table egg producing regions of the world. Such temperatures …
The present study was conducted to determine the adverse effects of high temperature and humidity not only on live performance …
Hy-Line W-36, W-98, and Brown hens lay approximately the same number of eggs/hen housed to 80 wk; however, little is known about differences in performance during heat stress (HS). Two experiments were performed. The first experiment evaluated intestinal calcium uptake (CaT), heat shock protein-70 (HSP70) liver expression, and endocrine status in the 3 strains under …
Light patterns have less effect on numbers of eggs laid by current stocks than on those of forty years ago, …
Two experiments were conducted to study the effects of beak trimmer blade temperature (BT) and age at precision beak trimming (PBT) on the performance of two commercial strains of egg layers: Babcock B300 and Hy-Line W36. The birds were housed in cages during the rearing and laying periods. In experiment 1, only feed consumption was …