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Cattle
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 9-24 mo
Length of estrous cycle: 21 (17-24)
Duration of estrus: 18 hr (6-24 hr)
Type of estrous cycle: Polyestrus
Length of gestation: 9.5 mo (279-290 d)
Time of ovulation: 30 hr after onset of estrus
Optimum time to breed: 12 hr after onset of estrus
Sheep
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 4-12
Length of estrous cycle: 17 (14-19)
Duration of estrus: 30 hr (24-48 hr)
Type of estrous cycle: Seasonally polyestrus (fall-winter)
Length of gestation: 5 mo (144-152 d)
Time of ovulation: 26 hr after onset of estrus
Optimum time to breed: 24 hr after estrus begins
Goat
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 4-8
Length of estrous cycle: 21 (12-24)
Duration of estrus: 39 hr (1-4 d)
Type of estrous cycle: Seasonally polyestrus (fall-winter)
Length of gestation: 5 mo (140-160 d)
Time of ovulation: 30 hr after onset of estrus
Optimum time to breed: 24 hr after estrus begins
Horse
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 10-24
Length of estrous cycle: 21 (15-26)
Duration of estrus: 7 d (1-9 d)
Type of estrous cycle: Seasonally polyestrus (spring)
Length of gestation: 11 mo (332-340 d)
Time of ovulation: highly variable
Optimum time to breed: 2nd-3rd day of estrus
Swine
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 4-8
Length of estrous cycle: 21 (18-24)
Duration of estrus: 50 hr (1-4 d)
Type of estrous cycle: Polyestrus
Length of gestation: 114 d (112-116 d)
Time of ovulation: 40 hr after onset of estrus
Optimum time to breed: 24 hr after estrus begins
Chicken
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 5-7
Length of estrous cycle: n/a
Duration of estrus: n/a
Type of estrous cycle: n/a
Length of gestation: 21 d
Time of ovulation: every 29 hr
Optimum time to breed: every 10 d
Turkey
Age at puberty:
Length of estrous cycle:
Duration of estrus:
Type of estrous cycle:
Length of gestation:
Time of ovulation:
Optimum time to breed:
Age at puberty: 5-7
Length of estrous cycle: n/a
Duration of estrus: n/a
Type of estrous cycle: n/a
Length of gestation: 28 d
Time of ovulation: every 29-35 hr
Optimum time to breed: every 30 d