i need all the answer please Early breeding in beef cattle can result in? A. low
ID: 177110 • Letter: I
Question
i need all the answer please
Early breeding in beef cattle can result in?
A. lower calf weights
b. increased number of calves
c. birthing difficulties
d. all of the above
e. none of the above
How does feeding of beef cattle change from the backgrounding lot to the feed lot?
Increase roughage: decrease protein
Decrease roughage: increase concentrates
Eliminate roughage: feed only concentrate
Eliminate concentrates: feed only roughages
None of the above
What is the purpose of dehorning of cattle?
It improves their appearance
Safety to rancher and other cattle
It improves their growth rate
So they won’t get caught rate
None of the above
Early weaning for beef calves is usually done at less than?
2 months
3 months
4 months
5 months
None of the above
To determine when to breed beef cattle heifers the following should be considered?
Age
Weight
Body condition score
Age and weight
Age and body condition score
The primary reason for finishing cattle in feed lots is to?
Get them to the proper weight
Adjust their behavior before processing
Provide consumers with higher quality( grade) beef
Concentrate the cattle near the packing plant
None of the above
Castrating bull calves is done for what purpose?
a.to increased growth rate
b.to increase quality of meat
to render them infertile
to reduce potential injury
none of the above
What was the purpose of crossing the bos indicus type cattle into the European breeds?
Improve tolerance to heat
To improve weight gain
To improve feed efficiency
To improve meat quality
None of the above
The optimum age at first lactation in dairy cattle is about?
18 months
24 month
30 months
36 months
None of the above
The trend in the overall dairy industry is?
Fewer cows
More cows
Fewer dairy farms
More dairy farms
Both a and c
Most milk in the US is consumed as ?
Cheese
Fluid milk
Yogurt
Ice cream
None of the above
What is the average length of lactation for a dairy cow?
105 days
205 days
305 days
405 days
None of the above
About how long is the average dry period of a dairy cow?
5-10 days
20-30 days
40-60 days
80 -100 days
None of the above
In the US what livestock animal has the second most important dairy industry following cows?
Sheep
Water buffalo
Swine
Goats
None of the obove
A castrated male pig is called a?
Buck
Wether
Steer
Barrow
None of the above
The razorback peccary and javalina are examples of what type of livestock type animal?
Wild pigs native to north America
Feral pigs found in north America
Domesticated breeds of commercial swine
Breeds of sheep
None of the above
Early in swine production the primary product of interest from swine was?
Bacon
Lean meat
Hide to make clothing
Lard
One of the above
Where was the primary domestication event leading to modern swine?
Sothern Europe
Central asia
North America
Southeast asia
None of the above
What region of the world produces the most swine?
Asia
Europe
North America
South America
None of the above
Ewes are stimulated in to estrus cycling by photoperiod( daylength) what time of cycling begin in sheep?
Spring
Summer
Fall
winter
When considering the gestation period of ewe it is?
About 2 months
About 5 months
About 7 months
About 9 months
What is the primary product that uses sheep milk?
Yogurt
Cheese
Cream
It is not used for human food
When sheep herding moved west with the expansion of north America what occurred in the mid 1800s that impacted the industry?
Diseases reduced the numbers of sheep
Sheep were not productive in the west
Range wars broke out with cattle producers
The industry expanded with no problem
During the first half of the 20th century wool production had several peaks and valleys what caused these fluctuations in production?
Cotton was used instead
Military uses of wool increased during wartime
Synthetic fibers were used instead
People were indecisive concerning the fabrics the used
Which type of livestock has north America origin?
Turkey
Chicken
Sheep
horses
Based on farmgate value which segment of the poultry industry generates the largest income?
turkeys
white egg layers
broilers
brown egg layers
During early production of poultry which segment was the most important?
Turkey meat
Chicken meat
Turkey eggs
Chicken eggs
Turkeys were domesticated by which civilization of the world?
Incas
Mayans
Navaho
aztecs
James Dryden was a poultry researcher in the early 20th century at what is now OSU what important work did he do?
Discovered vitamin B12
Used genetic selection to improve egg number
Used genetic selection to improve body weight
Developed the electric incubator
Which of the following is correct concerning turkey breeding?
Breeders maintain a ratio of 1 male to 10 to 12 females
Breeders maintain a ratio of 1 male to 3 or 4 females
Turkeys are usually pair mated
Breeders use artificial insemination
None of the above
How long after weaning will it take for a sow to show signs of heat?
24-21 days
3-7 days
1 months
3 months
Ringing in swine is done to---?
Prevent rooting
Prevent tail biting
Prevent injury to the sow
Horses are somewhat seasonal when breeding what time of the year will give the poorest results?
April- September
Sept- nov
Nov- feb
Feb - april
Horses are somewhat seasonal when breeding what time of the year will give the best results?
April- September
Sept- nov
Nov- feb
Feb - april
Where did the original domestication of the horse occur?
Europe
South America
Central asia
africa
What is the most common color in horse?
Dun
Sorrel or chestnut
Bay
What determine whether a female horse is a filly or a mare?
Age
Puberty status
First parturition
First heat
Which of the following are considered foundation breeds for horse?
Stallions and Arabians
Arabians and thoroughbreds
Sorrels and chestnuts
Arabian and Standardbreds
Boar odor is?
The reason swine production facilities have objectionable odors
Found in barrows if processed when too old
A new cologone for swine farmers
Off smelling meat from processing intact male hogs
What advantage do traditional livestock producers have over non-traditional production?
Established markets streams
Current acceptance by consumers
Research base to draw from
None of the above
All of the above
Which of the following management methods could make a traditional animal product into a non-traditional animal product?
Organic production
Free range production
Kosher processing methods
None of the above
Which of the following are probably the most controversial products of the rabbit industry?
Meat and fur
Fur and research
Meat and exhibition
Exhibition and pets
The razorback is a type of swine found roaming wild throughout the southern US it is considered an agricultural pest by many what is a razorback?
A wild pig like a warthog that is native to north America
A wild pig like a warthog that was brought to north America as a game species
The result of escaped domestic pigs from the early explores
Some alumni from the university of Arkansas
None of the above
Which of the following management methods could make a traditional animal product into a non- traditional animal product?
Organic production
Free range production
Kosher processing methods
None of the above
One reason for US agricultural advances were three pieces of legislation the hatch act, 1862 the morrill act 1887, and the smith-lever act 1914 these were responsible for creating what?
State unviersty systems, USDA animal health service
Land grant colleges ag experiment stations extension service
Land grant universities FFA 4-H
USDA, FDA, EPA
None of the above
Of the protein consumed in developed countries which of the following is true?
Most is from plant sources
Most is from animal sources
They consume protein equally from both sources
They don’t eat protein
None of the above
Concentrates are?
Moderate to low in energy
High in fiber
Moderate to low in digestibility
Both a and c
None of the above
Dietary carbohydrates must be converted to what for them to be absorbed by a monogastric?
Polysaccharides
Monosaccharides
Disaccharides
Starch
None of the above
In the calculation to determine metabolizable energy which of the following is subtracted from gross energy?
Heat
Milk or eggs
Body tissue
Feces and urine
CO2
When an amino acid or fatty acid are said to be essential they are?
Required in the diet
Required by the organism for normal function
Are not synthesized during metabolism
All of the above
None of the above
When ruminants chew cud they are?
Digesting the cellulose
Digesting the starch
Making the particle size smaller so microbes can break down the cellulose
Making the particle size smaller so microbes can break down the starch
The philosophical view that says animal use is permitted as long as animal are treated humanely and not caused unnecessary pain and suffering is?
Animal right
Animal liberation
Animal explitation
Animal welfare
Both a and c
Which of the following species has paired ceca?
Sheep
Chicken
Horse
Pig
cattle
Which species has the highest efficiency of digesting cellulose?
Chicken
Cattle
Horse
Pig
turkey
Which of the following factors has contributed to the development of the animal right movement?
The media conerage of animal issue
Increase in the number of people connected to agriculture today
The Disney factor
A and b
A and c
In turkeys which parent will determine the gender of its offspring?
Mother
Father
It is a random event not determined by either parent
The parent that is the homogametic sex
None of the above
What cellular process allows for maintaining of the chromosome number in animals from one generation to the next?
Transcription
Translation
Mutation
Mitosis
meiosis
What is the function of the scrotum?
Protection of the testis
Thermorgulation of the testis
Production of the seminal fluid
Both a and b
Both a and c
When alleles of a trait are co-dominant?
The dominant trait masks the recessive trait
The recessive trait masks the dominant trait
The heterozygous individual is the same as the dominant
The heterozygous individual is intermediate between the recessive and dominant
The heterozygous individual expresses both traits
When the allele of a trait is incompletely dominant?
The dominant trait masks the recessive trait
The recessive trait masks the dominant trait
The heterozygous individual is the same as the dominant
The heterozygous individual is intermediate between the recessive and dominant
The heterozygous individual expresses both traits
Gregor mendal was the first to understand the science of genetics working with pea plants he develop two fundamental laws of genetics which deals with the alleles of two genes?
Transcription
Translation
Independent assortment
segregation
William bateson working in about 1902 found that mendels laws applied to animals by studying which species?
Chicken
Sheep
Goats
mice
Most of the genetics material in livestock is found in what structure?
Ovum
Cell nucleus
Sperm
mitochondria
What is a gene?
One half of a chromosome
A part of the nucleus
A group of amino acids
A section of DNA
Normal genes have how many copies in each individual?
ONE
TWO
THREE
FOUR
Sex-linked genes have how many copies in each heterogametic individual?
One
Two
Three
four
Normally chromosomes in livestock species are found in?
Groups
Triplets
Pairs
singles
The genetic material in a sperm cell is?
Twice the amount found in the ovum
Half the amount found in a stomach lining cell
The same as the amount found in a stomach lining cell
Half the amount found in the ovum
Quantitative or economic traits are those that?
Are intermediate between the recessive and dominant cases
Are either abviously present or not
Are variable in the population
Are never expressed in the individual
In the genetic relationship called complete dominace the offspring that are heterozygous will appear?
Same as the recessive case
Same as the dominant case
Intermediate between the recessive and dominant case
None of the above
Chromosomes becomes visible when?
Cells are actively making protiens
Cells are duplicating their DNA
When cells are making RNA
When cells are dividing
Genetic traits that are considered dicrete when?
The traits are intermediate between the recessive and dominant cases
The traits are either obviously present or not
The traits are variable in the population
The traits are the result of multiple genes
Name a layer that surrounds the oocyte?
Fluid
Nucleus
Head
Zone pellucida
A blastocyst hatches at about?
1 day
10 days
15 days
30 days
You can use the pearson square to balance a ration for?
NaCI
Protein
Energy
fiber
Total digestible nutrients(TDN) is a measure of?
Energy
Protein
Fiber
corn
When crossing wo individuals that are both homozygous for a particular allele that trait will be expressed in?
All of the offspring from that pair
All of the female offspring but not the males
All the male offspring but not the females
¼ of the offspring from that pair
¾ of that offspring from that pair
Heterosis is a genetic effect that occurs following?
Brother x sister mating
Genetic selection
Line breeding
Crossing different genetic lines
Chromosome number in animals is determined by?
Size of the adult animal
Size of the egg cell from the female
Amount of DNA in each cell
All of the above
None of the above
When considering essential and non- essential amino acids in monogastric diets which of the following is true concerning the non-essential amino acids?
They are not a required nutrient
They are not required in the diet
They are needed only under certain cases
They are required in the diet
Which vitamin listed below is considered water sloluble?
Vitamin A
Vitamin D
Vitamin B 12
Vitamin K
Which nutrient is the most important?
Protein
Carbohydrate
Vitamins
water
In a chicken digestive tract cellulose is broken down in which section?
Stomach
Rumen
Cecum
Large intestine
Cellulose is not digested
Based on their nutrition strategy cattle are?
Ominivores
Herbivores
Insectivores
carnivores
Which of the following accessory sex glands are absent in the avian male?
Prostate gland
Ampulla
Cowper’s gland
Vesicular gland
All of the above
Which of the following occur in the mammalian uterus?
Most of embryo development
Fertilization
Beginning of embryo development
Both a and b
e.Both b and c
What hormone makes the cervix remain open during heat?
Progesterone
Estrogen
Insulin
testosterone
Which of the following are functions of the uterus?
The site of fertilization
Placental development
Produces progesterone
Both a and b
Both a and c
Which of the following is lacking in the avian male reproductive anatomy compared to the mammal?
Testes
Vas deferens
Epididymis
None are present in the avian male anatomy
All are present in the avian male anatomy
What sound does a barrow make?
Moo
Baa
Cluck
Whinny
oink
The overall quest of animal agriculture is to?
A. improve the efficiency of animal production
Make life difficult for non- major in ANS 1221
Create jobs for animal science faculty
I don’t have a clue
If I were you I would consider answer a again
i want all of the answer please
answer all the question please
Explanation / Answer
1. Birthing difficulties. When the beef cattles mate at very early stage, calving difficulties may occur due to small immature birth canal.
2. The cattles are usually fed on the high roughage diet.
3. Dehorning of cattles is done to provide on farm safety for animals, producers and employees.
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