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Animal Reproduction
Vocabulary• Budding• External fertilization• Internal fertilization• Ovary• testis
Male cow reproductive system
Sexual Reproduction
• Testes- are a pair of male reproductive system and lie in the scrotum behind the penis. • Scrotum- behind the penis• Penis- an organ where the
urine excretion takes place.
• Sperms- are called male gametes; travel out through the penis.
Female cow reproductive system
• Ovaries- are a pair of female reproductive system; located at each side of the lower abdomen.
• Ova – are female gametes produced by the ovaries.
• Fertilization- the fusion of male and female gametes. ( sperm and egg)
• The fertilized egg will develop into a young animal.
• Internal fertilization- it occurs in the body.
Examples of animals that carry out internal fertilization are:
rhinoceroses, dogs, birds, crocodiles, insects and elephants
• External fertilization-occurs outside the body of a female.
Asexual Reproduction
• It occurs in some animals such as:–Starfish–Hydra–Flatworm
Hydra reproduces by producing buds.
The process is known as budding.
flatworm
starfish
Breeding of animals
• Selective breeding- it allows the adult animals to reproduce better quality offspring in the next generation.
Artificial breeding- this method allows collected sperm cell inseminated to a female animal artificially.
A young "hebra," an offspring from a female zebra and a male horse,
roams with her mother inside Manila Zoo in Manila, Philippines, Aug. 19,
2010.
Hercules is the most famous Liger in the World.
• Embryo transfer- emrbyos are collected and transferred to a female recipients.