Effect of two climatic conditions and types of feeding on body weight gain and some physiological and biochemical parameters in crossing calves [electronic resource].

Includes references.

The present work was planned to study the effects of type of feed stuff under both mild and hot periods of the year on thirty two cross calves (Friesian x Baladi) aged 6-8 months with average body weight 136.8 kg. The study included two periods, each of 3 months. The first period was carried out during mild conditions (from the 1st of January until the end of Marsh) and the second period was during hot conditions (from the 1st of May until the end of July). Averages of air temperature and relative humidity values at mid day inside the farm building were, 23.7±1.1DC and 63.9±2.0% under mild conditions and 34.3±1.1DC and 54.9±2.0%, respectively,

Summary in Arabic.

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