The nine month

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The nine month
Story
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The cows reproductive tract
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Uterine Horns
Ovary
Cervix
Vagina
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Heat detection of a cow is important

• Cow stands to be mounted for another

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Follicle produced by FSH
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This follicle will soon rupture(ovulation) with
the help of LH

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Heat chart
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Artificial Insemination should occur 12 hours
after noticeable heat.
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Fallopian Tube (Oviduct) site of fertilization.

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CL (Corpus Luteum) takes the place of the
follicle. The CL produces the hormone
progesterone.
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30 days- 1 month

• 2/5- PEA SIZE
• HEAD LIMB BUDS RECOGNIZABLE
• PLACENTA NOT ATTACHED

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60 days- 2 months
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60 DAYS - 2MONTHS

• 6-7.5 CM
• 21/2-3IN
• CLAW BUDS AND SMALL SCROTUM RECOGNIZABLE, PALATE,
  AND STERNUM CLOSED, PLACENTA ATTACHED AND
  LENS-SIZED COTYLEDONS PRESENT.

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90 days
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90 days- 3 months

• 13-17CM
• 5-61/2 INCHES
• RAT SIZE
• FINE HAIR ON EYEBROWS
• CLAWS DEVELOPED
• YELLOW COLORED EPITHELIAL
• PLAQUES PRESENT ON AMNION
• HORN PITS PRESENT

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120 days

• 12.5-18cm
• 5-7in
• small cat size
• find hair on eyebrow
• claws develop
• horn pits

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150 days

• 18-23cm
• 7-9in
• large cat size
• hair on eyebrow and lips

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180 days

• 40-60 cm (15-24 in )
• hair on inside of the ear, around the horn pits
  tip of tail, muzzle.

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• 55-75 cm (22-30 in )
• long hair on tip of tail
• Hair on the metatarsal, metacarpal and phalangeal
  region

210 days
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210 days
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240 days

• 60-85 cm ( 24-34 in )
• Fine short hair all over the body
• Incisor teeth not erupted

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270 days

• 70-100 cm (28-40 in )
• Hair coat complete
• incisor teeth erupted

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Gestation Period for Cattle
283 Days
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One of the first signs of birth is the water bag.
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First sign of the calf should be the two front
legs.
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Parturition!
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GOT MILK?
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Produced by Juda Agriculture Education III Class.
Mark Mansfield
Justin Bolton
Jeff Zweifel
Pat McCullough
Chairman
Eric Wheeler
Joe Holland
Guy Reasa
Chris Erb
Eric Thompson