Estrus Detection In Cows (Heat detection)
Do you know that you can detect the heat period of cows just by observing?
Cow's reproductive cycle has 4 phases; proestrus, estrus, metestrus and diestrus. Estrus is the period that cow is fertile and it lasts around 24 hours. Heat periods occur every 21 days.
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| cow in heat |
The hormone levels of estrogen, LH get increased in this period and the progesterone levels get decreased in the circulation.
Without wasting much time let's go for the heat signs:-
1.Standing to be mounted - this is the most common and accurate sign of estrus and the mounting is performed by other cows(not bulls).
2.Mounting on other cows.
3.Swelling and redding of the vulva - prior to estrus and remains for a short period of time.
4.Mucus discharge - clear viscous mucous strands on vagina, tail, thighs, planks, perineal region.
This is due to the elevation of blood estrogen levels.
5.Chin resting and back rubbing - prior to mounting on another cow.
6.Sniffing and licking genitalia.
7.Bellowing- frequently .
8.Restlessness.
9.Trailing.
10.Decreased feed intake.
11.Lip curling.
12.Head raising etc.
Tags:
Dairy Farming