Preventive use of allopathic medicine and antibiotics, growth promoters, or hormonal products to synchronize or
induce oestrus
is prohibited.
In
real oestrus, sows show the so-called standing response.
Oestrus cycle
in ewes is approximately 16 to 17 days, being slightly shorter in younger ewes.
Oestrus in dairy cows.
Uses to obtain a
synchronized oestrus
in sheep and hence synchronized lambing.
Contact with a male by sight, sound or smell triggers
first oestrus.
Oestrus detection
in cattle and the risk factors for endometritis.
She required hormone injections to
initiate oestrus
and was given the choice of mates ( using an old-fashioned breeding technique ).
This time is known as "
postpartum oestrus
" which means that she can be nursing one litter while being pregnant with another.
Oestrus female.
Readers are introduced to behavior aspects of reproduction, such as how to
detect oestrus
and how to minimize neonatal mortality.
A
fertile postpartum oestrus
may result in pregnancy, with a gestation length of over 30 days when the female is nursing young.
The word usage examples above have been gathered from various sources to reflect current and historical usage.
They do not represent the opinions of YourDictionary.com.