Table 6 Type III sum of squares F probabilities for the effect of number of days in the dam’s or maternal grand-dam’s (MGD) birth year for which heat stress (THI > 72) was recorded during the coolest time of day (MIN, ~ 5:00) or severe heat stress (THI > 79) was recorded during any time of the day (MAX) at the Bet Dagan weather station

PD16

NS^a

NS

0.0060*

NS

Milk

NS

0.0001*

0.0003*

0.0329

Fat

0.0001*

0.0001*

0.0001*

0.0002*

Protein

0.0001*

0.0001*

0.0414

0.0285

Fat %

0.0001*

0.0001*

0.0001*

0.0001*

Protein %

0.0001*

NS

0.0001*

NS

SCS

0.0001*

0.0003*

0.0498

NS

Female fertility

0.0129

0.0001*

NS

0.0411*

Persistency

0.0001*

0.0001*

0.0001*

0.0002*

Herd-life

NS

0.0235

0.0001*

NS

Dystocia

0.0001*

0.0001*

0.0001*

0.0002*

Stillbirth

0.0001*

0.0001*

NS

NS