Agr 506 exam 3 With Questions & Veried Answers Latest Update

Agr 506 exam 3 With Questions & Veried Answers Latest Update Male stages of reproductive behavior - ANSWER► Precopulatory stage Includes:search for partner, courtship, arousal,erection, penile penetration ► Copulatory stage Includes: mounting, intromission, ejaculation ► Postcopulatory stage Includes: dismount, refractory period, memory Female stages of reproductive behavior - ANSWERAttractivety ► Behaviors that serve to attract males ► Postures, vocalizations, behaviors, chemical cues, etc Proceptivity ► Behaviors that stimulate male to copulate or that reinitiate sexual behavior after copulation ► Head butting male or mounting male Receptivity ► Copulatory behavior of females ► Immobility or standing response, tail deviation, backing up toward male Behavior of females in estrus - ANSWER► Increased locomotion ► Milling around ► Exploration ► Increased vocalization and agonistic behavior towards other females can be observed What are the stimuli that are important to courtship? - ANSWERVisual, olfactory, and auditory stimuli What is lordosis? - ANSWERA mating posture by the female ►associated with the "willingness" to mate Positive vs. negative experiences during breeding - ANSWER► Need to provide male with positive stimuli ► Positive experiences promote reproductive behavior ► Negative experiences inhibit reproductive behavior T/F: Steriods (such as estradiol & testosterone) are required for reproductive behavior. - ANSWERTrue If you remove these (castrate, ovariectomy) no reproductive behaviors will be displayed. T/F: Reproductive behaviors can be artificially induced by supplementing sex hormones in a sterilized animal. - ANSWERTrue What is the flehmen response? - ANSWERCurling of upper lip so that airflow through nasal passages is restricted ► Assists male in in identifying mating opportunities through pheromones released by females in estrus What is the duration of copulation? - ANSWERRam: 1-2 sec Bull: 1-3 sec