heat stress dairy, trouw nutrition, animal nutrition

1

Increased Respiration Rate

Brouk et al 2002 demonstrated a strong correlation in respiratory rate to internal body temperature

2

Reduced feed intake by up to 30%

(Wheelock et al, 2010)

3

Decreased milk yield and milk fat

4

Increased standing time 

Cook et al 2007 demonstrated ~ 40% decrease in laying time in replacement of time spent standing in the alley or stalls

5

Decrease body weight

Cook et al 2007 demonstrated ~ 40% decrease in laying time in replacement of time spent standing in the alley or stalls

6

Decreased conception rate 

De Rensis & Scaramuzzi 2003 stated 20-30% decrease

7

Decreased birth weight of calves (~5.5 kg less), immunoglobulin absorption (~15%), and on average 4.5 kg/day less 1st lactation future milk (Dahl, 2016)

Heat stress, on top of the negative health and reproductive issues,  can have can a serious decline in milk yield and components. 

Download our on-farm heat stress checklist and make sure your herd is at the top of their game throughout the rest of the summer:

Impact of Heat Stress During Dry Period

Heifers born to heat stressed cows are significantly less healthy and productive. This can have a serious impact on your bottom line. See how to avoid it.

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Combatting Low DMI During High Temps

It has been well documented that heat stress will decrease dry matter intake (DMI) – up to 50% in severe situations.

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