問題一覧
1
widespread dissemination of the genotype of superior males
Artificial insemination
2
The key to a successful AI program is detecting estrus (standing heat) in the gilt or sow
True
3
Females typically cycle ever __ days, but estrus cycle can vary
21 days
4
Cycles may range from 16 to 30 days
False
5
Signs of Estrus
Swollen, red vulva, Increased vocalizations, Decreased appetite, Pinning of ears, Mucus discharge from vulva, Restlessness, Mounting other females or standing to be mounted
6
Expose semen directly to sunlight
False
7
Semen with extender is typically viable for up to how many days
7-9 days
8
The duration of estrus in cattle
12-30 hours, average of 18 hours
9
The female produces and releases many thousand egg cells
False
10
Where does the egg cell is fertilized by one sperm cell
Oviduct of fallopian tube
11
Timing is very essential in insemination
True
12
How many hours can sperm cells survive the oviduct
48 hours
13
What should be tested?
Motility, Concentration, Morphology, Dead-alive staining
14
Females observed in estrus in the AM are inseminated late afternoon of same day
True
15
Females observed in PM are inseminated later than noontime the next day
False
16
Rapid improvement in the heard, milk, and beef production
Advantage
17
Requires more time for preparation and implementation
Disadvantage
18
If the bull used for semen collection is not properly tested, there is an increased risk of spreading genital diseases
True
19
Accessible and affordable availability of a wide range of male for breeding
Advantage
20
Skilled inseminators are required to perform the procedure correctly not emphasizing the need for proper training
False
21
Artificial insemination does not requires well-trained operations and specialized equipment
False
22
It is crucial to exercise caution and select bulls with desirable genetic traits
True