Term
What is the origin, target, and function of the Gonadotropin Releasing Horomone? |
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Definition
Origin: Hypothalamus
Target: Anterior Pituitary
Function: Releases Luteinizing Horomone (LH) and Follicle Stimulating Horomone (FSH) |
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Term
| What is the origin, target, and function of the Follicle Stimulating Horomone (FSH)? |
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Definition
Origin: Anterior Pituitary Gland
Target: Ovary/Testis
Function: Development of follicle/Sperm Production |
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Term
| What is the origin, target, and function of Luteinizing Horomone (LH)? |
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Definition
Origin: Anterior Pituitary Gland
Target: Ovary/Testis
Function: Ovulation, CL Formation, Testosterone |
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Term
| What is the origin, target, and function of estrogen? |
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Definition
Origin: follicle placenta
Target: uterus/hypothalamus
Function: mating behavior, secondary sex characteristics |
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Term
| What is the origin, target, and function of progesterone? |
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Definition
Origin: Corpus Luteum (CL)
Target: Uterus/Hypothalamus
Function: maintains pregnancy, inhibits GnRH release |
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Term
| What is the orgin, target, and function of Prostaglandin (PGF2α)? |
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Definition
Origin: Uterus
Target: Corpus Luteum
Function: Regression of CL |
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Term
| What is the origin, target, and function of testosterone? |
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Definition
Origin: testis
Target: skeletal muscle, testis
Function: sperm production, male libido, secondary sex characteristics |
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Term
| Where is the Hypothalamus located and what is its function? |
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Definition
| Hypothalamus is located directly above the pituitary gland and it produces GnRH. |
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Term
| Where is the Anterior Pituitary Gland located and what is its function? |
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Definition
| Anterior Pituitary Gland is located at the base of the brain and it secretes reproductive horomones (LH, FSH, PROLACTIN). |
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Term
| Where is the ovary located and what is its function? |
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Definition
| The ovary is part of the female reproductive tract; it serves as the primary gonad, produces and releases an oocyte, and releases two major horomones: (1) progesterone, and (2) estrogen. |
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Term
| Where is the follicle located and what is its function? |
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Definition
| The follicle is located on the ovary and it produces Estrogen. |
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Term
| Where is Corpus Luteum located and what is its function? |
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Definition
| After a follicle matures, its cells change into corpus luteum, or "yellow body". The corpus luteum produces progesterone, which is vitally important to maintain pregnancy. |
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Term
| Where is the Uterus located and what is its function? |
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Definition
| The uterus is located beyond the cervix and it assists in sperm transportation, produces prostaglandin (regulates CL), and is the site for implantation and pregnancy. |
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Term
| Where are the oviducts located and what is its function? |
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Definition
| The oviducts are a pair of open-ended tubes, connected directly to the uterus. The oviducts transports sperm and is the site for fertilization. |
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Term
| Where are the uterus horns located and what is its function? |
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Definition
| The uterus horns are two branches of the uterus that houses the pregnancy. |
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Term
| Where is the cervix located and what is its function? |
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Definition
| The cervix is located between the uterus and the vagina and it serves to keep infection out and pregnancy in. |
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Term
| Where is the vagina located and what is its function? |
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Definition
| The vagina is located between the vulva and the cervix; it serves as a copulatory organ and as the birth canal. |
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Term
| Where is the vulva located and what is its function? |
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Definition
| The vulva is located on the exterior of the body and serves to protect the vagina and as heat detection. |
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Term
| Where is the scrotum and what is its function? |
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Definition
| The scrotum is located on the outside of the body and it serves to support the testicles and it provides heat control. |
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Term
| Where are the testicles and what is its function? |
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Definition
| The testicles are located within the scrotum and it produces testerone and spermatozoa. |
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Term
| Where is the vas deferens and what is its function? |
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Definition
| The vas deferens is a tube that runs from the epididymis to the urethra and serves as sperm transportation. |
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Term
| What are the accessory glands? |
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Definition
| Cowper and Seminal Vessels |
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Term
| Where is the prostate and what is its function? |
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Definition
| The prostate is located with the accessory glands and serves to make sperm into semen. |
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Term
| Where is the urethra located and what is its function? |
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Definition
| The urethra is the tube that travels from the vas deferens to the end of the penis. |
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Term
| Where is the epididymis located and what is its function? |
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Definition
| The epididymis is a tube that runs from the testicle and empties in the vas deferens. It consentrates, stores, matures, and transports spermatozoa. |
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Term
| What is the function of the sigmoid flexor and retractor penis muscle? |
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Definition
| the sigmoid flexor and retractor penis muscle fascilitates, stores, and allows the use of the penis. |
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Term
| What is the primary function of the penis? |
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Definition
| the penis is the organ of copulation |
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Term
| What is the primary function of the sheath? |
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Definition
| the sheath protects the penis |
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Term
| What are the advantages of artifical insemination (AI)? |
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Definition
1. permits use of outstanding sires
2. anyone can use an outstanding sire
3. progeny testing
4. dead/injured animals can be used
5. safety
6. less money to keep bulls
7. select sires to dam
8. less disease |
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Term
| What are the disadvantages of artifical insemination (AI)? |
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Definition
1. labor intensive
2. heat detection
3. equipment |
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Term
% of AI in Species
(turkeys, swine, dairy, beef, and sheep) |
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Definition
turkeys- 95%
swine- 85%
dairy cattle- 70-80%
beef cattle- 5-10%
sheep- <5% |
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Term
| Horomone base of Lutalyse- how does it work? |
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Definition
| Lutalyse is Prostaglandin horomone based and is meant to sync animals by causing the regression of CL |
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Term
| What is the biggest management problem with AI? |
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Definition
| Heat Detection is the biggest management problem with AI. |
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Term
| Number of embryo's average per flush? |
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Definition
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Term
| Where is sperm deposited during AI? |
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Definition
| in the mouth of the uterus |
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Term
| Production of greater than normal number of eggs. |
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Definition
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Term
| Females recieving embryos |
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Definition
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Term
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Definition
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Term
| technique used to remove embryos |
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Definition
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Term
| simplest unit of inheritance |
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Definition
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Term
| designating an individual whose genes for a particular trait are alike |
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Definition
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Term
| designating an individual that possesses unlike genes for a particular trait |
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Definition
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Term
| gene that overpowers and prevents the expression of a trait |
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Definition
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Term
| gene whose phenotype is masked by its dominant allele when genes are present |
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Definition
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Term
| rod like bodies that are found in nucleus of cells that replicate by the process of mitosis |
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Definition
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Term
| a small segment of chromosome DNA that is a genetic code for a trait and determines how that trait will develop |
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Definition
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Term
| cell division in the sex cells, or gametes (sperm in the male, ova in the female) |
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Definition
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Term
| a cell divides to produce two daughter cells, each of which contains the same chromosome completment as the mother cell from which they came |
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Definition
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Term
| the characteristics of an animal that can be seen or measured |
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Definition
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Term
| the genetic makeup of an individual |
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Definition
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Term
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Definition
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Term
| the time from one standing heat to another |
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Definition
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Term
| the point from fertilization to conception |
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Definition
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Term
| What is cattle's estrus, estrous cycle, and gestation period? |
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Definition
Estrus: 18hour
Estrous: 21 days
Gestation: 285 days |
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Term
| What is swines estrus, estrous cycle, and gestation period? |
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Definition
Estrus: 48hours
Estrous: 21 days
Gestation: 114 days |
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Term
| What is equines estrus, estrous cycle, and gestation period? |
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Definition
Estrus: 4-5 days
Estrous: 22 days
Gestation: 335 days |
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Term
| What is sheep estrus, estrous cycle, and gestation period? |
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Definition
Estrus: 30hours
Estrous: 16 days
Gestation: 148 days |
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Term
| What is goats estrus, estrous cycle, and gestation period? |
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Definition
Estrus: 30hours
Estrous: 16 days
Gestation: 150 days |
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Term
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Definition
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Term
| crossbreeding increases... |
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Definition
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Term
| mating of animals more closely related than the average breed/population |
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Definition
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Term
| used to maintain a high genetic relationship to an outstanding ancestor |
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Definition
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Term
| mating of animals not as closely related as the average of population |
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Definition
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Term
| mating of different breeds |
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Definition
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Term
| should out produce/gain average in cross progeny |
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Definition
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Term
| purebred or seed stock producers sell what? |
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Definition
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Term
| commercial breeders sell what? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| number of straws of semen used in ET |
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Definition
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Term
| number of eggs per mare per flush |
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Definition
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Term
| horomone base used in CIDRs |
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Definition
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Term
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Definition
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Term
| located between epididymis and urethra |
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Definition
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Term
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Definition
| seminal vesicles and cowpers |
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Term
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Definition
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Term
| cows should no be bred before ___ days postpartum |
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Definition
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Term
| help tools in heat detection |
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Definition
1. chalk
2. visual observation
3. eletrical sensor |
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Term
| best way to determine heat |
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Definition
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Term
| temperature semen must be frozen at |
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Definition
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