Page 267 - Primary Six Notes

A gamete is a reproductive cell. The reproductive cell of a fe-

male animal is called an ova.

The reproductive cell of a male animal is called sperms/semen
A zygote is a fertilized egg cell

Fertilization takes place in the fallopian tube or oviduct.

Conception is the stage when a fertilized egg implants itself in

the uterus.

Implantation is the attachment of the embryo on the uterus

wall.

Conception takes place in the uterus while implantation takes

place on the walls of the uterus

Gestation period is the period between fertilization and birth.
The gestation period of a cow is 9 months or 270 - 280 days

A cow which is pregnant is called in calf cow or in calf heifer

When a cow is pregnant, it should be fed well so that it pro-

duces a healthy calf.

An in calf cow should be isolated when it is about to calve

down.

Signs of pregnancy in a cow

 The udder increases in size

 The cervix closes up

 The uterus enlarges

 The cow stop experiencing signs of heat

 There is mucus around the cervix

 Reduction in milk production