Large Animal Medicine II Exam I Flashcards
(202 cards)
1
Q
Number one cause in dairy cattle is phosphorus deficiency. Leads to fragile red blood cells and usually in cows on a lot of grass
A
Post partum hemoglobinuria
2
Q
Caused by bovine coronavirus. Wild ruminants are reservoirs for the virus. 2-6 year old animals are at highest risk. Diagnosis by detection of virus with ELISA or RT-PCR. Samples must be collected 1-3 days of onset of diarrhea. Treat with fluids
A
Winter Dysentery
3
Q
Treatment for anaplasma
A
Oxytetracycline, before replicative stage occurs in the cow so during the incubation stage
4
Q
May occur in young calves when 1st weaned. Produced hypotonicity and leads to intravascular hemolysis
A
Water intoxication
5
Q
Assosicated with lupine in western australia. Causes liver damage
A
Phomopsins
6
Q
Test for digestion of carbohydrates in rumen fluid
A
Gluose fermentation test
7
Q
Outcome of infection with BVD in pregnant animal depends upon
A
Stage of gestation Strain of BVDV Immune status of the cow
8
Q
Dairy. Good for cheese
A
Jersey
9
Q
Caused by feeding of rough fibrous feed during droughts or feeding machine made wheat. No feces, dehydration, anorexia, abdominal distension. Usually found on exploratory rumentomy.
A
Omasal impaction
10
Q
Dose dependent infection, dependent of life cycle of parasite. Causes bloody diarrhea
A
Coccidiosis Eimeria bovis and Eimeria zuernii
11
Q
Monocytes 1-5% in bovine means
A
Chronic disease
12
Q
Attaches to villous enterocytes, decreases surface area and causes malabsoptive diarrhea. Resolution in 2 days
A
Rotavirus
13
Q
Second most common deficiency of cattle. Secondary to molybdenum excess or from soil/plants
A
Copper
14
Q
Primary impaction due to dry feed with limited water. Secondary impaction due to disturbances in motility or pyloric outflow failure. Results from TRP, Right displaced abomasum
A
Type III Vagal indigestion (Abomasal obstruction)
15
Q
Purpose of fungus in the rumen
A
Aids bacteria in cellulose digestion.
16
Q
NSAID that can be used as endotoxemic ridding effect in calves
A
Flunixin meglumine
17
Q
NSAID of propionic acid class. Potent PGE2 inhibitor. Short half life and requires multiple doses
A
Ketoprofen
18
Q
Treatment for calf e.coli
A
Remove organism from GI tract- Amoxicillin Correct dehydration Prevention with vaccine
19
Q
Highly restricted class of antibiotics. ELDU is forbidden. Bactericidal. Concentration dependent. Inhibits bacterial DNA replication and transcription by binding the A subunit of DNA gyrase.
A
Fluoroquinolones
20
Q
Affects older animals more severely. Calves can be carriers. Caused by rickettsial organism. Invades margin of RBCs. Transmitted by ticks and horse flies. Cattle and sheep are susceptible. Will have milk drop, icterus, aggression. First sign is presence of organism in RBCs.
A
Anaplasmosis A. marginale or A. caudatum
21
Q
Produced by fungi. Grows on corn, peanuts, and cotton. Causes hepatic failure.
A
Aflatoxin
22
Q
Physiological signs of pain
A
Increased respiration Increased HR Increased Body temperature Increased pupil size
23
Q
Occur during periparturient period. Associated with LDAs, coliform mastitis, and metritis. Not severely affected, causes reduced food intake and milk production. Diagnosis only at necropsy
A
Type I abomasal ulcers.
Non perforating, non bleeding
24
Q
Seen months after pasture exposure. Caused by simultaneous emergence of arrested larvae. Cattle appear normal and then death in 1-2 weeks
A
Type II ostertagia
25
Pathogenesis of rumen acidosis
Loss of body water causes dehydration contributing to acidosis. Lactic acid is absorbed from rumen as well as from small intestine and profound lactic acid develops.
26
Lethal at 0.3% BW. Glycoside toxin carboxyatractyloside causes severe hypoglycemia and massive hepatic necrosis. Young plants more toxic.
Cocklebur
27
Only NSAID approved for use in the US for cattle and swine. Labeled for fever/inflammation associated with respiratory disease, mastitis, and endotoxemia.
Flunixin meglumine
28
Restrictions for B lactams
Follow label for aminopenicillins. ELDY is permitted as long as AMDUCA is followed
29
Results from other disease. Chronic. Rumination is absent, rumen underfilled, fecal production is depressed, might have diarrhea
Secondary rumen indigestion
30
Asymmetric abdominal distension most pronounced in the left paralumbar fossa. Increased HR and RR. Acute form can cause death in 30 min to 4 hours
Bloat
31
Diarrhea with damage to villous epithelium and loss of enterocytes leading to shortening of the villi because loss is faster than replacement. Results in decreased suface area and enterocytes lost are mature and important. Viruses, bacteria, and protozoa are most commonly involved with this type of diarrhea
Malabsorptive diarrhea
32
Treatment for severe cases of SARA
Successful tx limited.
Empty rumen by oral lavage/rumenotomy.
Oral buffers
Fluid therapy
33
Management for frothy bloat
Grazing management
Polxalene (top dressing)
Ionophores
34
Least common displaced abomasum. 180 degree torsion with or without volvulus. Rotation along mesenteric axis. Outflow obstruction and schema if arteries obstructed.
Right displaced abomasum
35
Toxin: Abrin
Rosary Pea
36
Toxin: Robin. New growth is most toxic
Black locust
37
Fluoroquinolone used in swine
Just Enrofloxacin
38
Azalides consist of
Azithromycin, Tulathromycin, Gamithromycin, Tildipirosin
39
Caused by oral exposure to fecal coliforms that lead to colonization of the gut. 80% attachment occurs. Signs include secretory diarrhea and dehydration.
Enterotoxigenic E. Coli
40
Time dependent antibiotics. Bactericidal. Binds to penicillin binding proteins, Penems cause cell lysis. Poor intracellular activity
B lactams
41
Beef cow
Piedmontese.
Italian. Beef selected for myostatin gene
42
Causes of elevated rumen fluid chloride
Abomasal disease
Abomasal reflux
Obstruction of intestinal flow
43
Restrictions for Florfenicol
Extra label use is permitted. Prolonged withdrawal for different than labeled production class.
44
If non segmented neutrophils 0% seen on bovine WBC count
Indicates Acute overwhelming infection
45
A carcass with violative residues is condemned by
FSIS
46
Antibiotic selection has been proven to be based on
Production class and organ system affected
47
Instrument used to treat esophageal obstructions
Probang
48
Developmental stage for anaplasmosis lasts 4-9 days and
Most signs are present, lasts 3 weeks to 3 months, carrier state
49
Diagnosis for anaplasma
Complement fixation test
50
Inhibits COX isoenzymes lowering prostaglandin production from arachadonic acid.
NSAIDs
51
Number one risk factor for calve diarrhea
Colostrum deficiency. Failure of passive transfer.
52
Mostly acquired from systemic infection and end up with valvular vegetative endocarditis. Usually right side of heart.
Valvular heart disease
53
Brahma
54
Wooden tongue. Painful nodular lesions involving the soft tissues and oral cavity leading to swelling at the base of tongue. Examine pus for sulfar granules.
Actinobacillosis
55
Hepatotoxin found in plants. Cumulative and progressive. Problems 1-5 months after ingestion. Causes in-utero infections. Alkaloids damage hepatocytes leading to fibrosis. Neuro and liver signs
Pyrrolizidine alkaloids
56
Beef cow
Scotch Highland
57
Reduction in frequency or strength of primary contraction. Caused by reduction in excitatory drive to gastric center, increase in inhibitory inputs, and weakness of the motor pathway.
Hypomotlity of the primary mixing cycle
58
Provides large surface area for the absorption of VFAs, electrolytes, and water. Reduces feed particles. Located toward the right of the median plane and opposing the 7th and 11th ribs
Omasum
59
Bactericidal, concentration depended. Primarily aerobic Gram -. Highly water soluble. Oral absorption is poor after gut closure. Irreversibly binds to the 30s ribosome. Accumulates in lysosomes and mitochondria. Nephrotoxicity and ototoxicity.
Aminoglycosides
60
Used in swine. Avoid ruminants and horses because causes Clostridial overgrowth. Inhibits protein synthesis by binding the 50s ribosome. Used for mycoplasma pneumonias and bacterial arthritis. Can result in swelling of the anus
Lincosamides
61
Beef
King ranch
62
Animals eating 5% or more for over 30 days will die. Invasive weed. Causes pyrrolizidine toxicity
Tansy Ragwort
63
Oocyte shedding occurs as early as 3 days of age and peaks at 2 weeks. Can continue to occur if environment contaminated. Severe villous atrophy and malabsorptive diarrhea.
Cryptosporidium parvum
64
Best drug use for pain.
Multimodal drug use. Target acute pain with quick acting, short duration. Follow with long acting NSAIDs, opioids, local, NMDA receptor, a2 agonists.
65
Glycoproteins that bind to cell receptors causing inhibition of protein synthesis and cell death. Most toxic of known plant compounds. Concentrated in seeds and are released following chewing the seed. Cause severe intestinal irritiation and purgation.
Lectins (Castor bean, Rosary pea, Black locust)
66
A prescription basically for anti infectives added to feed. Must follow the label for mixing and feeding. Enforced by the FDA.
Veterinary feed directive
67
Discovered on King ranch. Parasite in RBCs. Eradicated from USA. Transmitted by Boophilus spp. tick. Animal develops disease at young age when not really susceptible but can develop immunity. Animal becomes carrier but is also resistant. Urine is dark red to brown color from hemoglobinuria.
Babesiosis (Texas Tick Fever)
68
If severe scours give less
Milk More electrolytes instead
69
Failure of eructation that results in free gas bloat and ruminal distention. Usually due to vagus nerve damage due to TRP
Type I Vagus Indigestion
70
Produce alpha 2 casein in milk
Guernsey
71
First stage of anaplasmosis lasts 3-8 weeks and ends with
Rise in body temp. Incubation phase
72
Abdominocentesis findings for traumatic reticulopericarditis
Increased WBC (PMN \>6,000 nucleated cells)
Increased concentrations (\>3g/dL)
73
Beef cow
Chiaiana
Italian
74
Restricitions on aminoglycosides
Only can really be used in fetal pigs (withdrawal is 40 days). Zero tolerance drug.
75
Diarrhea with secretion of water is greater than can be absorbed. Usually from hypersecretion from small intestinal crypts due to abnormal stimulation. Stimulation increases adenyl cyclase activity and production of cAMP within the cells. Most commonly caused by enterotoxins and rotavirus. More common type in neonates.
Secertory diarrhea
76
Control methods for free gas bloat
Temporary rumenotomy
Fix underlying issue
77
AUC/MIC dependent antibiotic. Broad spectrum and bacteriostatic. Binds to the 30s ribosome. Minimal affinity for mammalian ribosomes, and prevents protein synthesis. Wide distribution through tissues, mostly eliminated through kidney.
Tetracycline
78
These have zero tolerance for residues
Aminoglycosides EL drugs Approved drugs used in different class than labeled
79
These products cannot be used off label
EPA
80
Main reason for residue testing
Public health concern. Risk= consumption x risk/unit of consumption
81
ELDU is not allowed for
EPA products, production reasons, fluoroquinolones, sulfonamides, cephalosporins, non medical use of sedatives
82
Outcome of BVDV infection during gestation days 40-120
Persistently infected animals. Fetus could be immunotolerant
83
Failure of omasal transport preventing aboral movement of ingesta from reticulum to abomasum. Functional or mechanical outflow disturbances from vagus damage due to mycoticomastitis, reticular abscesses, localised adhesions
Type II vagal indigestion (omasal transport failure)
84
Induces secretion and aids in pH in calf e. coli
Heat stable toxin
85
Most common site of traumatic reticuloperitonitis
Right medial wall of the reticulum. Dairy cows more common
86
NSAID In canada and europe approved for adjunct therapy for acute respiratory disease, diarrhea, and acute mastitis
Meloxicam
87
Calf born with heart outside of chest.
Ectopia cordis cervicalis
88
Shorthorn
89
Beef cow
Belted Galloway
90
Sets tolerance levels for drug residues based on approved drug label.
FDA
91
Target tissue for residue testing
Liver, kidney, muscle, pelvic fat.
92
Test used for digestion of fibers on rumen fluid
Cellulose digestion test
93
Severity of scours depends on
Which cause The dose Health of the calf
94
First organ receiving blood from the GI tract
Liver
95
Seen in western states. Caused by Rhabdovirus. Similar to FMD and reportable. Seen in 6-8 year old cattle. Incubation is 2-5 days.
Vesicular stomatitis
96
Hereford
97
Inflammation of the salivary gland. Tx: reduce swelling, drain abscesses and broad spectrum antibiotics. Wounds and infections or blockage can lead to cysts
Sialadentitis
98
Broad spectrum time dependent antibiotics. Bacteriostatic. Mimics the PABA precursor at the beginning of the THFA pathway blocking production of the active form of folic acid. Weak acid.
Sulfonamindes
99
Signs include black tarry feces and anemia. Sharp decline in production and appetite. Diagnosed with profound anemia and Guaiac fecal occult blood test. Associated with lymphosarcoma and cows \>5 years old. Treat by restoring blood volume and IV ranitidine
Type II abomasal ulcers
Non perforating Major bleeding
100
First helminth in calves. Disease usually not associated with infection but may see loss in manure.
Strongylus papillosus
101
Leaves are alternate, pinnately compound. Green seeds are most toxic. Toxin causes severe gastrointestinal irritation and liver degeneration, hemorrhagic diarrhea, and death. Treat with laxatives to clear GI tract and activated charcoal.
Coffee weed, sesbania
102
Tier of residue testing. Designed to target herds and flocks of origin.
Third tier
103
Important in operations that mix calves at early age. Penetrates mucosa and causes intense submucosal inflammation, secretory diarrhea
Salmonella S. typhimurium, dublin, newport
104
Allows further breakdown of food and addition of large quantities of saliva (buffer)
Rumination
105
Tests for drug residues based on established levels
FSIS
106
Common problem in intensively managed dairy herds. Signs include DMI, diarrhea, lameness, low milk fat test, rumen stasis. Fresh and high intake cows are at higher risk. Rumen fluid will be \<4
SARA
107
Most common causes of anemia in the cow
Parasitism and Nutritional deficiencies
108
During this there is complete absence of reticuloruminal motility. Direct depression of the gastric center and failure of the vagal or motor pathways
Atony of the primary mixing cycle
109
Goals of fecal sampling
Fast, Reliable, Targeted treatment
110
Causes colonization of the ileum in calf e. coli
K99 fimbria (FS)
111
Cause complete rumen stasis, severe dehydration, and recumbency with cold extremitis.
Severe neutropenia, hemoconcentration, and hypoproteinemia present. Treat with antibiotics and restricted exercise.
Type IV abomasal ulcers
Perforating diffuse peritonitis
112
More common congenital cardiac defects in cattle. Causes loud holosystolic murmur when yearling.
Ventricular septal defect
113
Hook worm. Infection by ingestion and skin penetration. Causes anemia and black tarry feces in calves
Bunostomum
114
Inhabits the small intestine. Associated with anorexia, villous atrophy and diarrhea when in large numbers.
Cooperia spp.
115
Calves undergo spontaneous cure. Transmitted spontaneously
Toxocara vitulorum
116
Occurs in early postpartum.
Type III Abomasal ulcers
Perforating local peritonitis
117
Approves chemicals used as pesticides
EPA
118
Factors contributing to SARA
Source of and particle size of grain
Milk fat %, fat to protein ratio
Assessment of manure
119
Resistance to B lactams occurs by
Avoidance by way of B lactamase production or altering the PBP to prevent binding
120
Spiny purple and black berries. Toxins are saponins, oxalates, and alkaloid phtolacine. Causes bloody diarrhea, colic, salivation and death
Pokeweed
121
Plant that causes bone marrow damage and aplastic anemia. Can lead to hemorrhagic syndrome due to platelet loss
Braken furn
122
During this cardia will remain firmly shut if foam or fluid contact. Difficult to auscultate differences between primary and secondary
Secondary (eructation) cycle
123
Massively edematous wound infection. Bighead in young rams. Mediated by alpha toxin.
Myonecrosis (Clostridium novyi Type A)
124
Contains triterpenoid compounds. Causes intrahepatic cholestasis and photosensitization
Lantana
125
Tier of residue testing that focuses on samples at the establishment level. Samples taken by plant inspectors still undergo KIS testing. Positive samples dont repeat KIS testing
Second tier
126
Caused by mycobacterium avium sub species paratuberculosis. Small rod shaped bacterium. Target is GI tract, the ileum is primary site for infection. Causes PLE, diarrhea, and rapid weightloss
Johnes disease
127
Test for digestion of proteins in rumen fluid
Nitrate reduction test
128
Purpose of bacteria in rumen
Digest cellulose, cant be seen with electron microscope
129
What can be determined through rumen auscultation
Rate and stregth of rumen contractions
Rumen volume
Nature of rumen contents
130
Most common displaced abomasum. 180 degree torsion without volvulus. Rotation along its long axis ventral and to the left of the rumen. Little/no outflow obstruction occurs
Left displaced abomasum
131
Centesis of area below the gas ping. Fluid with pH \<4.5 is abomasal. Burnt almond odor to gas
Lipstack test
132
Sporadic fatal enteric disease of adult dairy cattle. Usually seen in first 3-4 months of lactation. Massive hemorrhage into the small intestine with subsequent intraluminal formation of large clot and casts creating obstruction
Hemorrhagic bowel syndrome (bloody gut)
133
Dwarf Zebu
134
Associated with Bovine Leukemia virus. Multicentric in heart, uterus, abomasum. In cattle \>3 years of age. Signs are dependent on location of tumors.
Enzootic adult LSA
135
Attaches to villous and crypt enterocytes. Causes maldigestion and malabsorption. Clinical signs have longer duration
Coronavirus
136
Usually caused by fluorosis and weak teeth. Seen in areas with factories. Diagnose by bone biopsy
Pitting of teeth
137
Dairy. Has good feet
Brown swiss
138
Number one reason to choose antibiotic
Based on system affected. Then most likely microbes associated, then expected outcomes.
139
Indicates the overall health of the ruminant
Frequency of primary contractions
140
Small analysis for antibiotic treatment for BRD in high risk calves. Some antibiotics proven better than others. Tx with AB significantly reduced BRD morbidity and mortality
DeDonder and Apley Meta Analysis
141
Percent dehydrated calve with slightly sunken eyes and depression
7%
142
Shed design for calf scour management
All in all out \<20 calves per air unit
143
Clinical signs of vagus indigestion
Chronic progressive weight loss with abdominal distention. Papple
144
Infectious necrotic hepatits. Highly fatal. Usually follows liver damage done by Fasciola hepatica. Peracute death most common.
Black disease (Clostridium novyi Type B)
145
Sulfonamide restrictions
Adult dairy cows, can only use sulfadimethoxine
146
Affects bone tissue. Usually mandible. Lesion is hard immovable mass. Gram positive filamentous branching organism. Sodium Iodide IV once a week is treatment
Actinomycosis "Lumpy Jaw"
147
Normal level of rumen chloride
30 mEq/L
148
Most important parasite. Low numbers can cause anorexia. Found in abomasum. In young leads to impaired digestion.
Ostertagia ostertagi
149
Four primary locations of esophageal obstruction
Pharyngeal inlet #1 Thoracic inlet Base of the heart Cardia of the rumen
150
Non antibiotic combo and treatment of calf scours caused by rotavirus, crypto, salmonella, e coli, and coronavirus
Rotagen combo
151
Has the highest incidence of volative residues for sulfonamides
Pork
152
Primary disease. Ruminal gases are trapped in small bibles within abnormally viscous digest. Usually dependent of feedstuffs
Frothy bloat
153
Associated with Rye grass. Alpacas and fallow deer most susceptible.
Sporidesmin
154
Allows suckling calves to bypass to abomasum
Oesphageal groove
155
Inflammatory changes that develop in the rumen mucosa and underlying tissues in cattle fed high energy rations with inadequate roughage. Associated lesions of liver abscess and laminitis occurs. Can affect whole herd if not adapted
Rumenitis
156
Blocks sodium channels in nerve cells. Inhibits conduction & transmission of signal. Infected tissue has lower pH and reduced effect
Local anesthesia
157
Approves prescription and OTC drugs
FDA
158
Acute onset. Caused by abrupt dietary change that results in self limiting but rapid decline in rumen fermentation. Acute anorexia, diarrhea
Simple (primary) rumen indigestion
159
Main aim of treatment for calf diarrhea
Return calve to normal fluid balance
160
Veterinarians only. Must have valid client patient relationship. Ingredient needed is not a drug labeled for the production class in question
ELDU
161
Caused by Clostridium hemolyticum Type D. Usually in fluke infected cattle, well nourished, and over 1 year old.
Bacillary Hemoglobinuria
162
Erythromycin is parent compound. Intracellular activity. Azalides are better for intracellular. Broad spectrum. Inhibits protein synthesis by binding the 50s ribosomal subunit. Bacteriostatic. Concentrates in cells that are more acidic than plasma.
Macrolides
163
Causes liver abscesses.
Fusobacterium necrophroum, corynebacterium, and SARA. Greater in Beef
164
pH of ___ indicated lactic acidosis in the rumen fluid
\<5.5
165
Beef cow
Charolais
166
Occurs during the grazing period. Disease caused by emergence of immature worms from gastric glands 10-14 days after ingestion of larva.
Type I ostertagia
167
Angus
168
Normal bovine Total WBC count
4,000-12,000
169
Found that most adult cattle diarrhea is not bacterial related. Salmonellosis is only primary cause of diarrhea that can be treated with AB.
Geof Smith Paper- enteric disease
170
Grows early spring. Found across US. Ranunculin toxin which is glycoside that is converted to protanemonin. Irritates the mouth and causes gastroenteritis. Excessive salivation, reddened mucosa, diarrhea.
Blister buttercup
171
Spores in enviornment. Follows fasciola hepatica infection. Most common in well nourished \>1 year calves. Peracute death
Bacillary hemoglobinuria (Clostridium novyi Type D)
172
Rumen is functional in calves once
Grain is introduced
173
Autosomal recessive in Holstein cattle. Looks similar to failure of passive transfer. Leukocytes cant phagocytize bacteria
Bovine Leukocyte adhesion deficiency
174
Dentral condition older cows die from. Teeth wear down to point that animal cant eat
Dental attrition
175
The stomach hairworm. Smallest abomasal worm.
Trihostrongylus axei
176
Causes intravenous hemolysis after 1-3 days of depression. Chronic exposure increases liver stores and stress causes release.
Copper
177
Caused by high altitude causing hypoxic vasoconstriction and cardiac failure results in edema in the brisket.
Brisket disease
178
Caused by pestivirus. Cytopathix and noncytopathic biotypes, both required for mucosal disease. Immunosuppressive. Inapparent infections
Bovine viral diarrhea/ mucosal disease
179
Aryshire
180
Test used on rumen contents for anaerobic fermentation
Methylene blue reduction test
181
Caused by parapoxvirus. Usually mild disease of calves. Raised reddish papules on muzzle. Can cause lesions in humans
Bovine papular stomatitis
182
Treatment for crypto in calves
Supportive care, no antibiotics effective. Prevent exposure
183
Malignant edema follows wound contamination, hemorrhage, and edema. Death within 24 hours. Lesion starts warm and painful then becomes crepitant and cold
Braxy (Clostridium septicum)
184
local anesthetic with 5-8 hour duration. 20-30 min onset.
Bupivicaine
185
Beef cow
Devon
186
Plants that cause heinz bodies
Kale, beet pulp, rye grass, Brassica plants, onions
187
Related to chloramphenicol. Has fluorine at the 3' carbon position which prevents bacterial inactivation. Time dependent. Broad spectrum mostly Gram -. Use for BRD, Pink eye, interdigital phlegmon. Inhibits protein synthesis and blocks peptidyltransferase activity at the 50s ribosomal subunit. Good for diseased lungs.
Florfenicol
188
If orally administered 1 day meat withhold for swine and goats. Not approved for pre-ruminating calves or lactating cattle
Neomycin
189
Purpose of protozoa in the rumen
Controls bacterial population.
190
During advanced pregnancy when the enlarged uterus displaces abomasum which interferes with normal motility
Type IV vagal indigestion (late gestation indigestion)
191
Outcome of BVDV infection during 120-180 days in gestation
Birth defects. Cerebellar hyperplasia
192
Caused by Clostridium novyi. May be associated with black leg and liver flukes. Results in sudden death, fever, toxemia
Black disease
193
Outcome of BVDV infection in 1st or 2nd trimester
Fetal death or abortion
194
Common infection in cattle, role in diarrhea unclear
Giardia
195
Dairy cow
Dutch Belted
196
Hepatotoxic cyclic peptides lead to disntegration of hepatocellular cytoskeleton. Ingestion of large doses leads to death within an hour.
Blue green algae and muschrooms
197
ELDU of FDA approved products is permitted based on
AMDUCA guidelines
198
Manifestation of an underlying primary disorder. Sporadic occurance and usually one animal. Can be caused by esophageal dysfuction and ruminal motility dysfunction
Free gas bloat
199
Tier of residue testing that evaluated 800 samples per chemical compound class for each of the production classes chosen to be tested. Old method only did 300
First tier
200
Toxin- Ricin.
Increases in seeds and when ground. Lectin toxin. Cattle must consume 0.25% of body weight
Castor bean
201
What you want in electrolytes
Electrolytes These also once vet intervention: Bicarb Energy- glucose
202
Hereditary short mandible or weak jaw
Brachygnathia
