20-22 days is the length of a mares entire cycle. 14 days of diestrus and 6-8 days of
heat.
from when you end
That will depend on the 6 months. It can be anything from 181 to 184 days. For example, in a non-leap year you have the follow sets: From the start of January to the end of June is 181 days. From the start of February to the end of July is 181 days. From the start of March to the end of August is 184 days. From the start of April to the end of September is 183 days. From the start of May to the end of October is 184 days. From the start of June to the end of November is 183 days. From the start of July to the end of December is 184 days. In a leap year January to June and February to July would both be 182 days.
Sundown.
It is 146 days from the start date to the end date, start day and end day included.
It is 1,696 days from the start date to the end date, start date and end date are included.
It is 1,097 days from the start date to the end date, start date and end date are included.
It is 183 days from the start date to the end date, start day and end day included.
Mares go into estrus one a year, when they are bred they have the foal twelve months after, at which time they can be bred almost instantly after they give birth but I'd wait awhile beforeDuring the "natural" breeding season open mares will begin to cycle as temperatures rise and the photo period increases (spring). Initially they will go through a prolonged period of estrus called the transitional phase in which they may be receptive but willnot build a large follicle and ovulate. Once the first ovulation of the season occurs most mares will ovulate every 20 days unless they are covered by a stallion and become pregnant. There is some variation from mare to mare but most will be in heat for 5 or 6 days, once ovulation occurs the mare will remain in diestrus for approximately 14 days.Once a mare foals, she has a foaling heat that is designed to help the mare return tonormal breeding status. While a mare can be bred during this cycle her fertility is reduced.
298 days are between June 19 2009 and April 13 2010.
74 days are between January 17th and April 1st 2010.
It is 36 days from the start date to the end date, end date included.
There are 79 days from the start date to the end date, but not including the end date.