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KC Jr HB Questions > Category J: Parasites > Flashcards

Category J: Parasites Flashcards

1
Q

What type of fly lays its small yellowish eggs on the horse’s legs, mane, chest, shoulders, belly & chin?

A

Bot Fly

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2
Q

Which internal parasite usually causes tail rubbing?

A

Pinworms

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3
Q

Which adult parasite resembles a honey bee?

A

Bot Fly

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4
Q

Which sex of the horsefly bites the horse?

A

Female

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5
Q

Which insect does the horse bot fly resemble?

A

Honey Bee

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6
Q

What is ringworm caused by?

A

Fungi

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7
Q

Which type of internal parasite is able to cause an embolism in horses?

A

Strongyles (Bloodworms)

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8
Q

What is another name of lice eggs?

A

Nits

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9
Q

How long can lice live when off the host animal?

A

3 Days

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10
Q

Which external parasite lays its eggs in wounds then hatches into maggots, which feed on dead tissue?

A

Blowfly

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11
Q

Name the two types of lice that affect horses.

A

Biting and Sucking

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12
Q

Why shouldn’t hay and grain be fed on the floor of the stall?

A

The feed can mix with fecal material which can contain parasite eggs or larvae.

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13
Q

What is caused by various species of fungi arranged in circles on the skin?

A

Ringworm

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14
Q

What is a plant or animal living on, in, or with another living animal that is used for it’s food and shelter?

A

Parasite

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15
Q

What is the living animal who provides shelter and food for a parasite called?

A

Host

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16
Q

Of the internal parasites, which one is usually the longest?

A

Ascarids (intestinal worms)

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17
Q

Which internal parasite is sometimes called blood worms?

A

Strongyles

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18
Q

What is it called when a drug is given to your horse to kill internal parasites within the horse’s body?

A

Worming or Deworming

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19
Q

Why shouldn’t you allow your horses to drink from barnyard pools and pasture water holes?

A

To avoid getting parasites

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20
Q

What is another name for the six-legged larvae of the tick?

A

Seed tick

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21
Q

Which internal parasite of the horse spends it’s adult life cycle outside of the horse?

A

Bots

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22
Q

Where do mites lay their eggs and reproduce?

A

Under the skin

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23
Q

How does a tick breathe?

A

By holes on its abdomen called spircles

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24
Q

which parasites are white-appearing worms with slender tails that cause horses to rub or scratch their tails?

A

pinworms

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25
Q

What is another term for stongyles?

A

blood worms

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26
Q

Internal parasites gain entry into the animal’s body in the form of eggs, larvae and what other form?

A

adults

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27
Q

what do we call the organism to which a parasite attaches itself?

A

host

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28
Q

which parasite causes mange?

A

mites

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29
Q

Name the fly that hovers about the horse, then quickly darts towards the animal and glues eggs to the hair in a matter of seconds.

A

bot fly

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30
Q

what are the two main types of strongyles?

A

large and small

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31
Q

which common insect does the adult bot resemble?

A

honey bee

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32
Q

which bot fly lays black eggs?

A

nose bot fly

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33
Q

which of the two main types of parasites is most likely to cause anemia?

A

internal parasites

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34
Q

what is a plant or living in,on, or with another living organism, at whose expense it obtains its food and shelter?

A

parasite

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35
Q

in which organ would bot larvae spend about 9 months maturing before passing out with the feces?

A

Stomach

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36
Q

mange can itch, have crusty scabs and make the hair fall out and is caused by which parasite?

A

mites

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37
Q

what problem is caused by a fungus that make circles on the skin that itch a lot?

A

ringworm

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38
Q

What will be kept under control by not feeding hay or grain on the ground, keeping stall cleaned, removing manure from pastures and paddocks, switching postures and deworming horses every 2 months?

A

parasites

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39
Q

What is the main diet of the tick?

A

blood

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40
Q

which of the 4 main types of internal parasites is the largest?

A

ascarids

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41
Q

what is another name for roundworms?

A

ascarids

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42
Q

which professional should you contact in order to develop a parasite control program for your stable?

A

veternarian

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43
Q

which external parasite is so small, a microscope is needed to identify it?

A

mites

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44
Q

what is the vector for lyme disease?

A

ticks

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45
Q

many veterinarians recommend deworming foals and weanlings how often?

A

every 30-60 days for the first year of life

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46
Q

how long is the life cycle of a mosquito?

A

10-14 days

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47
Q

Ia large population of blood sucking stable flies may cause several problems, name two.

A

Severe dermatitis, possible infections, secondary affects of blood loss, fractured leg bones from stomping.

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48
Q

adult horse flies are the intermediate host to which parasite?

A

Stomach worms (habronema)

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49
Q

what is the incubation time for bot eggs and what stimulates them to hatch?

A

incubation is 1 - 5 days, have one horse licks them

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50
Q

Lonestar, Rocky Mountain, American dog, Tropical and Spinose are all different types of what?

A

Ticks

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51
Q

organophosphates are used primarily to kill which parasite?

A

Bots

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52
Q

butcher tapeworms first occur in what two ages of horses?

A

weanlings and yearlings

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53
Q

which parasite can cause erosion on the tongue and gums of the horse?

A

Bot larvae

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54
Q

what is the foundation of any fly control program?

A

Good sanitation

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55
Q

what is the scientific name for the common horse bot fly?

A

Gastrophilus intestinalis

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56
Q

what is the most common physical form of administering antiparasitic compounds to horses?

A

paste

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57
Q

what two things are necessary for bot eggs to hatch?

A

friction and moisture

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58
Q

during which season are lice more of a problem for horses?

A

During winter

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59
Q

which part of the horse’s digestive system is affected by strongyles, pinworms and tapeworms?

A

Large intestine

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60
Q

How long does it take to complete the life cycle of a housefly?

A

1-2 weeks

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61
Q

Name the parasite that affects young foals through its dams milk by penetrating the foals skin.

A

Strongloids westeri (thread worms)

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62
Q

approximately how much money is spent per year on pest control?

A

270 million dollars

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63
Q

when should the treatment for bots be scheduled?

A

Fron mid too late summer and after a killing frost

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64
Q

how long does it take for a nymph to reach maturity?

A

Three to four weeks

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65
Q

In what 2 areas are adult pin worms most commonly founs?

A

Colon and rectum

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66
Q

Doubling the normal dose of pyrantel pamoate is an effective treatment for which parasite?

A

tape worms

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67
Q

What is the life cycle of a fly?

A

egg, larvae, pupa adult

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68
Q

What is the most successful way to control parasites?

A

Interrupt the parasites life cycle or have a good deworming program

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69
Q

Name 2 methods of purge deworming.

A

Paste, stomach tube and those using feed as a carrier for the compound

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70
Q

What type of test is used by your vet to determine the number and type of parasites found in your horse?

A

Fecal examination

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71
Q

Which intestinal parasite is not affected by the ‘continuous’ deworming program?

A

Bots

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72
Q

How should cattle grubs be removed from horses?

A

Surgically by a vet

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73
Q

What are the 2 basic methods of internal parasite reduction?

A

Management and chemical reaction

74
Q

Oribatid mites are an intermediate host for which parasite?

A

Tape worms

75
Q

Ascarids eggs will start to appear in the manure of foals at what age?

A

10-13 weeks

76
Q

Threadworms (strongloides westeri) infections originate from what 2 sources in the foals environment?

A

By ingesting larvae in dam’s milk or by larvae present in bedding by penetrating foal’s skin

77
Q

Which fly is so annoying to some horses that they may lose weight because they spend more time fighting this fly than grazing?

A

Bot fly

78
Q

Infections or strongyloids westeri are most common in young foals of what ages?

A

From 4-47 days old

79
Q

What is the main problem caused by threadworms?

A

Diarrhea

80
Q

How long is the life cycle of the threadworm?

A

Less than 2 weeks

81
Q

What are the large roundworms that primarily affect foals and young growing horses?

A

Ascarids (parascaris equorum)

82
Q

Which of the major internal parasites of the horse has no migratory state after being ingested?

A

Pinworms

83
Q

How many eggs will the adult female ascarid lay per day?

A

Up to 200,000

84
Q

Strongyles occur in horses of all ages except one, name this age.

A

Neonatal foals

85
Q

How many eggs does the strongyle female lay per day?

A

Several thousand eggs per day

86
Q

How long is the average life cycle of the strongylus vulgaris?

A

6-7 months

87
Q

How long is the average life cycle of strongylus equinus and edentatus?

A

8-11 months

88
Q

What is the primary objective to a successful parasite control program?

A

Interruption of the parasite’s life cycle

89
Q

why is it important to know the life cycle of various parasites?

A

To aid in proper prevention and treatment

90
Q

Ringworm is caused by various species of fungi, arranged in circles on the skin. What is the usual treatment for ringworm?

A

Wash for lesions with soap and warm water to soften crusts, dry, paint with tincture of iodine daily for 1-2 weeks

91
Q

what are the four life cycle stages of the fly?

A

Egg, Larvae, Pupa and adult

92
Q

What is the main objective in a parasite control program?

A

Prevention

93
Q

Which external parasite is responsible for carrying the disease, piroplasmosis?

A

Tick

94
Q

How does rotating pastures frequently, aid in the control of internal parasites in horses?

A

It breaks the life cycle of the parasite

95
Q

At what age do the female lice begin to lay eggs?

A

11-12 days old

96
Q

How many species of bot flies are there?

A

Three

97
Q

The red tick carries which disease that was first identified in the US in 1960?

A

African Horse Fever

98
Q

The chorioptic type of mite may cause a foot mange resembling what?

A

Scratches

99
Q

Symptoms of what parasite includes rubbing, biting, general unthriftiness and patches of skin denuded of hair?

A

Lice

100
Q

When a horse suddenly begins to rub its tail against posts and other objects, what type of internal parasite would you check for?

A

Pinworms

101
Q

Which parasite treatment consists of painting lesions with tincture of iodine daily for 1-2 weeks?

A

Ringworm

102
Q

What is an insect vector?

A

An insect which carries and transmits disease-causing micro-organisms

103
Q

Animals infected with mites, should be re-treated how often?

A

Every 7 days

104
Q

What is an insect that carries and transmits disease causing micro organisms?

A

Insect vector

105
Q

What is a maggot?

A

A soft bodied, grub-like, footless larva of an insect

106
Q

What parasite would cause grayish crusts through which short hairs protrude in a circular pattern?

A

Ringworm

107
Q

There are 2 main types of parasites which get their names from where they live on their host, what are the 2 main types of parasites?

A

External and Internal Parasites

108
Q

Name 2 different kinds of external parasites.

A

Flies, lice, ticks, mites and fungus causing ringworm

109
Q

What are the 2 main types of lice that get their names from how they obtain their food?

A

Biting and sucking lice

110
Q

Name 2 different types of internal parasites.

A

Strongyles (bloodworms), ascarids (intestinal worms), stomach worms, pinworms, bot larva

111
Q

What is the lodgement of an abnormal or foreign particle in a tube or canal of the circulatory system and that tube is too small to permit its passage?

A

Embolism

112
Q

Which specific parasite carries African Horse Fever?

A

Red tick

113
Q

Where do pinworms mature?

A

In the large intestine

114
Q

Horses that bite or lick themselves where bot eggs are attached, cause what to happen?

A

Stimulates eggs to hatch

115
Q

What are 3 methods used to apply treatments for lice?

A

Spray, sponge or dust your horse

116
Q

How long does it take for lice to hatch?

A

11-20 days

117
Q

Female mites lay 10-25 eggs during the laying period, how long is this laying period?

A

12-15 days

118
Q

What is the average time span from the time a bot changes from a pupa into an adult?

A

15-17 days

119
Q

What is the immature, worn-like form into which certain insects hatch from the egg?

A

Larva

120
Q

what is the main difference between external and internal parasites?

A

External parasites live outside of the host and internal parasites live inside the host

121
Q

Which internal parasite gains entry into the horse when the horse swallows infective larvae that have climbed to the upper parts of pasture grasses?

A

Strongyles

122
Q

How many eggs does a female mite produce during their laying period?

A

10-25

123
Q

Name 2 places where do ascarid larvae do the most damage?

A

Larva as it migrates through body tissue

124
Q

A horse with mange has to be retreated how often to avoid reinfestation?

A

Every 7 days

125
Q

Approximately how long are adult ascarids?

A

5-22 inches

126
Q

In what organ of the horse’s body is the bot larva found?

A

Stomach

127
Q

What is the most common treatment for stable flies?

A

Insecticides and pesticides

128
Q

Which internal parasite is most likely to cause diarrhea, colic, blood clots or even death in horses?

A

Strongyles (blood worms) or ascarids

129
Q

Fly control is most effective by doing what?

A

Removal of manure and decaying vegetable material

130
Q

Which external parasite is responsible for carrying piroplasmosis?

A

Tick

131
Q

What do the following flies have in common: horse fly, deer fly, stable fly, and horn fly?

A

They all bite and suck blood

132
Q

Which 2 external parasites of teh horse are communicable to man?

A

Ringworm and mange mites

133
Q

How many days does it take for lice eggs to hatch?

A

11-20 days

134
Q

What is the name of the 2 larval forms of the blowfly?

A

Maggots and screw worms

135
Q

what are 2 types of flies that feed on nasal and face secretions?

A

Horse fly and Face fly

136
Q

Name the type of fly that creates problems when laying eggs in open wounds.

A

Blow fly

137
Q

what is an intermediate, usually motionless form assumed by metabolic insects after the larval state and is maintained until the beginning of the adult stage?

A

Pupa

138
Q

How can flies be prevented from breeding around a stable?

A

By keeping the surroundings free of manure, wet straw and bedding

139
Q

What is another name for strongyloides westeri?

A

Thread worms

140
Q

Which internal parasite lays the most eggs per day?

A

Ascarids (up to 200,000)

141
Q

What is another term for thread worms?

A

Strongyloides westeri

142
Q

How long is the average life span of an ascarid?

A

About 3 months

143
Q

Which internal parasite is transferred to the young foal through the dam’s milk or by larvae in the bedding that penetrate the foal’s skin?

A

Thread worms (strongyloides westeri)

144
Q

what is another term for the common bot fly?

A

Gasterophilus intestinalis

145
Q

What is another term for the throat or chin bot fly?

A

Gasterophilus nasalis

146
Q

What is another term for the nose bot fly?

A

Gasterophilus hemorrhoidalis

147
Q

What is the large roundworm that primarily affects young horses?

A

Ascarids

148
Q

How long do bot larvae remain in the stomach maturing before being passed out in the manure?

A

9 months

149
Q

What is a reduction in the hemoglobin of the red blood cells with a deficiency of oxygen in the blood?

A

Anemia

150
Q

What is the term for a substance capable of destroying or eliminating parasitic worms?

A

Anthelmintic

151
Q

What is a soft-bodied grub like, footless larvae of an insect?

A

Maggot

152
Q

What term describes the casting off or shedding of hair, feathers, horns or outer layer of skin then replacing it with new growth?

A

Molting

153
Q

When is the best to give an anthelmintic to break the life cycle of the bot?

A

Mid to late summer and again a couple of weeks after the first frost

154
Q

Which internal parasite may cause young foals to become dehydrated and develop chronic diarrhea?

A

Strongyloides westeri (thread worms)

155
Q

Which of the 3 main types of large strongyles do the most damage?

A

Strongylus vulgaris

156
Q

Older horses develop an immunity to which internal parasite as the horse matures?

A

Ascarids

157
Q

Since these parasites target young horses, it may be necessary to deworm every 2 months for this particular parasite for the first year of the horse’s life. Name the parasite.

A

Ascarids

158
Q

Which parasite’s eggs are very resistant to the environment and they may remain infective for years and affect young horses the most?

A

Ascarids

159
Q

Where does the pinworm mature in the horse?

A

Large intestine

160
Q

Name a practice that will help eliminate parasite during warm weather because it exposes eggs and larvae to the killing affects of the sun.

A

Harrowing or dragging pastures

161
Q

The veterinarian may evaluate the effectivness or resistance to dewormers by using what method?

A

Fecal parasite egg count

162
Q

Based on the chemical composition of a dewormer, it is a food practice to do what in order to reduce resistance to the ingredients?

A

Alternate deworming products based on their chemical composition

163
Q

Why is it necessary to know the different chemical compositions of various deworming products?

A

Specific chemicals are used to treat specific parasites and there are many brand names for the same chemical dewormers

164
Q

Why is it not recommended to have grass in small exercise lots?

A

Increases chance of parasite infestation

165
Q

Horse manure can be spread on a field after cleaning the stalls, but the horse should not graze on this field for how long after applying the manure?

A

1 year

166
Q

Name two ways that lice can be carried between 2 animals.

A

Contact with infected harness, saddles, blankets, brushes, curry combs or direct contact with an infected animal

167
Q

Name two different types of flies that can bother a horse.

A

Horse flies, horn flies, stable flies, deer flies, bot flies, flow flies, house flies, face flies.

168
Q

Which general type of parasite usually bite &/or suck blood for food, use body temperature & the hair of the host for comfort & shelter?

A

External parasites

169
Q

Which general type of parasites would transmit encephalomyelitis?

A

External parasites

170
Q

Name a type of fly that does no lay eggs in manure

A

horse or deer flies

171
Q

Strands or cords treated with insecticides hung in stable areas are commonly; used to reduce which parasite

A

flies

172
Q

When is an outbreak of lice most common

A

early spring

173
Q

Baits are effective against flies but are poisonous. They should be placed out of the reach of the horse because they usually contain what ingredient that the horse likes?

A

Sugar

174
Q

If lice are not completely destroyed after the first treatment, when should the next treatment be given?

A

2-3 weeks after the first treatment

175
Q

Which of the following is the smallest: flies, lice, mites or ticks?

A

mites

176
Q

What is the process called as a tick changes from one stage to the next?

A

molting

177
Q

what is the term for the holes in the abdomen of the tick through which it breathes?

A

Spiracles

178
Q

Strongyles vulgaris, strongyles endentatus and Strongylus equinus are all what specific type of parasite?

A

Large Strongyles

179
Q

How many legs does the adult tick have?

A

8

180
Q

Name 5 places where bot flys lay their eggs

A

On the hair of the forelegs, mane, shoulders, belly, chin, throat, nostrils, lips, flanks

181
Q

Name 4 internal parasites found in horses

A

Ascrids, strongyles (blood worms) pinworms, bots, threadworms (strongyloids westeri)

182
Q

Name the stages in the life cycle of the tick

A

Egg, 6 legged larva (seed tick), 8 legged nymph, adult

KC Jr HB Questions (11 decks)

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