The nine month Story

The cows reproductive tract

Uterine Horns Ovary Cervix Vagina

Heat detection of a cow is important Cow stands to be mounted for another

Follicle produced by FSH

This follicle will soon rupture(ovulation) with the help of LH

Heat chart

Artificial Insemination should occur 12 hours after noticeable heat.

Fallopian Tube (Oviduct) site of fertilization.

CL (Corpus Luteum) takes the place of the follicle CL (Corpus Luteum) takes the place of the follicle. The CL produces the hormone progesterone.

30 days- 1 month 2/5”- PEA SIZE HEAD & LIMB BUDS RECOGNIZABLE PLACENTA NOT ATTACHED

60 days- 2 months

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.

90 days

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

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

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

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

210 days 55-75 cm (22-30 in ) long hair on tip of tail Hair on the metatarsal, metacarpal and phalangeal region 210 days

210 days

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

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

Gestation Period for Cattle 283 Days

One of the first signs of birth is the water bag.

First sign of the calf should be the two front legs.

Parturition!

GOT MILK?

Produced by Juda Agriculture Education III Class. Mark Mansfield Justin Bolton Jeff Zweifel Chairman Pat McCullough Eric Wheeler Joe Holland Guy Reasa Chris Erb Eric Thompson