respiration rate Archives

Effect of summer climatic conditions on different heat tolerance indicators in primiparous Friesian and Jersey cows

1993
Issue: 3
Volume: 23

C.J.C. Muller and J.A. Botha Page: 98 - 103

2024-12-13
flickerleap

The effect of climatic conditions during summer on different heat tolerance indicators was determined in Friesian and Jersey cows which were kept in open camps with no protection against solar radiation. A complete diet (15.0% CP and 10.8 MJ ME/kg)…

1994
Issue: 2
Volume: 24

C.J.C. Muller, J.A. Botha, W.A. Coetzer and W.A. Smith Page: 56 - 60

2024-12-13
flickerleap

The effect of a shade structure on some physiological parameters of lactating Dutch-type Friesian cows was determined over three consecutive summer periods. Plasma cortisol concentration of no-shade cows was significantly (P < 0.05) higher than that of shade cows during…