Cows:
In breeding, it is better to bred good cows with best quality
bull
There are several methods of breeding. However, it is best not to
bred
between siblings, mother and sons or father and daughter
Average pubertal age of RCC is 1.5-2 years and 2.5-3 years for
Pabna,
Munsgigonj and North-Bengal Gray
Cows can be bred in two ways either natural service or artificial
insemination, Cows should be inseminated at right time after exact detection of estrus time
Vulba become red and swollen
Excess mucas discharge in the ventral end of vulba
• Sniffing of another animals, licking, restlessness and
shouting,
Immobile and allows other animal to mount on her
A cow must be inseminated between 4-12 hours of estrus. But
inseminating
after 10 hours of estrus and before 12 hours completion provide maximum probability of
conceive.
• A cow should not be inseminated within 60 days of parturition.
After 60
days the day at which she shows first heat sign that day she must be inseminated. Any adult
cow show
her estrus sign at every 18-24 days interval if she is not conceived
Incase of probable estrus time of cows, it should be checked three
times
(morning, noon and afternoon) daily
Buffalo:
Buffalo always graze in a group. Male and female buffaloes move
usually in
separate group and at the beginning of rainy season they gather for breeding
The average pubertal age of buffalo is 30-36 months
Sexually matured male and female buffalo live together 1-3 days for
breeding
Incase of intensive rearing system, it is important to take special
care
during probable estrus period
Estrus of buffalo is silent, so it is a bit difficult to detect the
exact
estrus time
Vulba become red and swollen
Excess mucas discharge in the ventral end of vulba
Sniffing of another animals, licking, restlessness and
shouting
Maximum buffalo shows their estrus sign from dawn to dusk
Buffalo should be inseminated between 8-18 hours of estrus
Infertility is a particular problem of buffalo. But this problem
can be
alleviated by ensuring proper nutrition and management.
Characteristics
of an ideal bull:
The lactation yield of dam should be taken into consideration
during the
selection of bull from own farm
The bull whose mother yielded maximum milk should be selected
for breeding
purpose
Health of selected bull should be sound, free of defects and
diseases
(especially sexually transmitted diseases)
During bull selection, it is important to observe whether his
legs are strong
and stout or not, particularly hind legs. Is he able to jump or not.
It is better not to bred the offspring with it’s sire
Artificial
Insemination:
To do artificial insemination, it should be done according to
the advice and
guidance of local livestock officer, veterinarian or relevant specialist
Semen should be collected from reliable institutes
Make sure that the semen was properly stored
Semen should be used according to the expert guidance know
it’s quality and the
blood percentage of developed breed present in it
Avoid unknown semen to inseminate in haphazard way
