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Ansc Exam 2
Ansc Exam Questions
| Question | Answer |
|---|---|
| A cow has how many mammary glands? | 4 |
| Ova and sperm meet, and fertilization takes place in which organ? | Oviduct |
| This is the dairy cattle breed that produces milk with the highest percentage of fat and protein | Jersey |
| The gestation length for a mare is approximately _____days | 336 |
| Artificial insemination is used more frequently in | Dairy Cows |
| Sperm maturation and storage occurs in which portion of the male reproductive tract? | Epididymis |
| What is the term used to describe a dairy cow that is not producing milk? | Dry |
| Leydig cells housed in between the seminiferous tubules in the testes are responsible for: | Testosterone production |
| The length of estrus or "heat" for a cow is usually ____ hours | 18 |
| The gestation length for a ewe is approximately: | 147 days |
| The gestation length for a sow is approximately ____ days | 114 |
| A normal gestation length for a cow is ____ days | 285 |
| A sow typically has ____ mammary glands | 10-14 |
| Which of the following is the term for the "yellow body", which is active tissue that develops on the ovary. | Corpus Luteum |
| Which of the following is not one of the top five countries for milk production | China |
| Somatic cell count is a measure of ____ in the milk | Body Cells |
| Cows, sows, and mares have a ____ uterus type | Bicornuate |
| Besides water, which of the following is the most abundant component in cow's milk? | Lactose |
| Cow's milk is most similar to what other species' milk in fat and protein content? | Goat |
| What is the term for a difficult birth? | Dystocia |
| A naturally occurring hormone that has been used as an exogenous source to increase milk production is | BST (Bovine somatropin) |
| Fluid milk consumption in the USA has ____ since the 1950's? | Decreased |
| The hormone responsible for the stimulation of milk "letdown" is | Oxytocin |
| What is the term for heating milk at a high temperature for a short period of time to destroy bacteria? | Pasteurize |
| A clinical sign of mastitis is | Small white clots in the milk, blood in the milk, and hot, swollen udder |
| The site of semen deposition during artificial insemination of cattle is | Uterine Body |
| An advantage of estrous synchronization is | Closer calving season, scheduled breeding times, and less labor cost |
| This is the dairy cattle breed that produces the highest amount of milk per cow per year | Holstein |
| The hormone that is produced by the corpus luteum on the ovary is called | Progesterone |
| The primary structures of the mammary gland responsible for producing milk are called | Alveoli |
| The first milk that is produced after parturition that is high in antibiotics is called | Colostrum |
| The third stage of parturition is | Expulsion of placenta |
| For cattle artificial insemination, straws of semen are stored/preserved in | Liquid nitrogen |
| Ruminant animals have which placenta type? | Cotyledonary |
| Which species contributes the largest percentages to the world milk supply? | Cow |
| Which factor affects milk production in dairy cows? | Heat stress, nutrition, and genetics |
| The process of spermatogenesis is how long? | 50-60 days |
| The hormone that is released on day 15 of the estrous cycle to cause regression of the corpus luteum (breaking apart the CL) and brings the female into heat is called | Prostaglandin |
| On a cow placenta, the maternal side of the placentome is called a | Caruncle |
| Research shows that cows express estrus or "heat" most often during which time frame? | Midnight to 6:00 am |
| A normal gestation length for a goat is ___ days | 150 |
| The age at which an animal becomes capable of reproduction is defined as | Puberty |
| A ewe has ___ mammary glands | 2 |
| Which species has more highly developed uterine horns? | Swine |
| The ___ serves as a protective barrier and prevents contamination of the uterus during pregnancy | Cervix |
| In the USA, artificial insemination is performed 100% in which livestock species? | Turkeys |
| The term for the process of applying intense pressure to milk to break down the fat globules | Homogenize |
| This is the dairy cattle breed that ranks second in milk production and originated from Switzerland | Brown Swiss |
| The disorder in dairy cattle that results from a sudden loss of blood calcium is called | Milk fever |
| Fluid milk production in the USA has ___ since the 1950's? | Increased |
| What is the dairy industry term used to describe when a cow gives birth and initiates milk production? | Freshening |
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