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| Question | Answer |
|---|---|
| Heat detection aids used on dairy farms include: | Heat expectancy charts • Tail chalk • Pedometers • Accelerometers • Pressure sensors • Electronic heat detection systems • Detector animals |
| Advantages of using artificial insemination over natural service include: | Safety • Genetic improvement • Better disease control • Better record keeping • Easier to prove bulls • Less expensive than keeping a bull |
| When should A cow should be artificially inseminated | 5 to 15 hours after the onset of standing heat. |
| The temperature of liquid nitrogen is | -320 |
| Frozen semen should be thawed in a warm water bath | 90 to 95°F for a minimum of 40 seconds |
| Average gestation length | 276 to 292 |
| the hormone the calf triggers in response to stress to initiate parturition. | Cortisol |
| the hormone released prior to calving that enables the cervix to soften and stretch in preparation for expelling the calf. | relaxin |
| When are Incidence of metritis, endometritis, and retained placenta the highest | Summer |
| AI | Artificial insemination |
| CIDR | Controlled internal drug release |
| CL | Corpus luteum |
| FSH | Follicle stimulating hormone |
| GnRH | Gonadotropin releasing hormone |
| IVF | In vitro fertilization |
| TAI | Timed Artificially Insemination |
| VWP | Voluntary waiting period |
| Calving interval | Period from one calving to the next calving, usually measured in months |
| Describes the animal that is neither normally fertile nor totally sterile | Infertility |
| Process where the uterus returns to normal size after calving | Involution |
| Infection of the uterus | Metritis |
| Act of giving birth (also called calving, freshening) | Parturition |
| An animal that received a fertilized ovum from a donor. | Recipient |
| Describes the animal that cannot reproduce | Sterility |
| Process that involves treating a cow with a hormone (FSH) to increase the number of ova produced | Superovulation |
| Time period after calving when the dairy producer chooses not to breed a cow; most common VWP is 60 days | Voluntary waiting period |
| Calving ease score system | 1 = No problem or unobserved • 2 = Slight problem • 3 = Needed assistance • 4 = Considerable force • 5 = Extremely difficult |
Created by:
achterjen14