REPRODUCTION

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REPRODUCTION
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CATTLE OESTROUS CYCLE

• Oestrous Cycle (Average Values)
• Duration of estrus (hrs)
• 14-18
• Ovulation (hrs after heat begins)
• 30
• Length of estrous cycle (days)
• 21

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EJACULATE DETAIL
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VITAL STATISTICS.

• Sperm live 28-50 hrs in the reproductive tract.
• Sperm take 2-4 minutes to reach the Fallopian
  tube(oviduct) in cattle.
• Fertilization occurs in the oviducts not the
  uterus.

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• Takes 3-4 days from ovulation to reach uterus
  where implantation occurs.
• Cows oestrous cycle is 21 days.
• Heat period or oestrus is 18hrs
• Gestation is 280 days.

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FEMALE ORGAN
FIMBRIA
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CORPUS LUTEUM AND FOLLICLE
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CORPUS LUTEUM
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FUNCTIONS

• OVARY PRODUCTION AND RELEASE OF EGGS OR OVA AND
  HORMONE PRODUCTION
• OVIDUCTS CARRY OVA TO UTERUS
• UTERUS DEVELOPMENT OF EMBRYO
• CERVIX SEPARATE UTERUS FROM VAGINA AND IS SEALED
  AFTER FERTILIZATION(PROTECTION FROM INFECTIONS)
  PROVIDES PUSH AT BIRTH

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• VAGINA ACCEPTS MALE PENIS AND DEPOSIT OF SPERM
• VULVA EXTERNAL PART OF REPROD. STRUCTURE. KEEPS
  VAGINA CLEAN.

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MALE ANATOMY
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ABNORMALSPERM
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FUNCTIONS

• SCROTUM KEEPS TESTES 4-5 DEGREES COOLER.
• TESTES PRODUCE SPERM AND TESTOSTERONE HORMONE
• SEMINIFEROUS TUBULES PRODUCE SPERM.
• EPIDIDYMIS SPERM STORAGE AND MATURATION REGION
  ALSO SECRETES FLUIDS TO NOURISH SPERM
• VAS DEFERENS MOVES SPERM TO URETHRA

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ACCESSORY GLANDS

• SEMINAL VESICLESADDS FRUCTOSE AND CITRIC ACID TO
  NOURISH SPERM.
• PROSTATE GLAND PROVIDES MINERALS AND CLEANS
  URETHRA
• COWPERS GLAND CLEAN URETHRA PRIOR TO EJACULATION.

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AI TIMING
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AI PROCESS
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AI TANK