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Spring 25: VM 757 - Bovine Herd Medicine > Quizlet Exam 1 > Flashcards

Quizlet Exam 1 Flashcards

1
Q

Gross revenue

A

animals sold x weight x price per unit

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2
Q

Cow/calf gross income

A

Calves sold per breeding female, weight, carcass characteristics

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3
Q

Wean beef calves (age)

A

205 days

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4
Q

Wean beef calves (weight)

A

550 lbs

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5
Q

Wean dairy calves (age)

A

60 days

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6
Q

Cow/calf profit

A

Value of calves - cost of production

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7
Q

Major costs

A

Feed (50-70%) & time

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8
Q

Costs influenced by

A

Timing of calving, efficiency of bull use

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9
Q

Veterinary services

A

Enhance efficiency, control costs, disease protection

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10
Q

Replacement rate of beef cows

A

12-18%

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11
Q

Calf crop

% of calves kept

A

~85% of mature cow herd

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12
Q

Yearly animal sales per 100 cows

A

70 weaned calves, 15 cull cows, 5 cull heifers, 2 cull bulls

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13
Q

Replacement rate of dairy cows

A

0.35

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14
Q

Typical pregnancy rate

A

90-96%

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15
Q

Target pregnancy rate

A

~95%

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16
Q

Typical born alive

A

87-94%

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17
Q

Typical calf deaths preweaning

A

5-8%

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18
Q

Target calving period

A

<60 days

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19
Q

Target calving pattern

A

Early = first 21 days (65%), first 42 days (85-88%)

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20
Q

Target heifer calving

A

40 days before mature cows

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21
Q

Cow/calf data to collect

A

BCS, dystocia info, pregnancy data, feed analysis, weaning weight

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22
Q

1 reason calves die at birth

A

Dystocia

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23
Q

Most influential factor in calf survival

A

Colostrum management

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24
Q

Neonatal beef calves colostrum

A

All colostrum available within 1 hour

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25
Neonatal dairy calves colostrum
4 quarts after birth + 2 quarts @ 12 hours
26
Features of colostrum quality
Maternal immunoglobulin transfer key
27
RID assay
>50 g/L (RID Assay)
28
Brix refractometer
>22% (Brix Refractometer)
29
Colostrometer
Green zone
30
Heat treat colostrum
140°F for 60 minutes
31
Milk dam for colostrum
1-2 hours postpartum
32
Evaluate calf IgG status
Serum TP on refractometer (2-7 days)
33
Goal TP for assessing calf IgG
>5.2 g/dL in 90%
34
Standard for beef cattle IgG
IgG 16-24 g/L; higher standard in beef
35
Poor IgG transfer
<5.1 g/dL
36
Fair IgG transfer
5.1-5.7 g/dL
37
Good IgG transfer
5.8-6.1 g/dL
38
Excellent IgG transfer
>6.2 g/dL
39
Pre-weaned dairy calf nutrition
Increase solids, fat, feeding frequency
40
Calf thermoneutral zone
50-70°F
41
Consistent milk feeding temperature
103-105°F
42
Consistently measure
Milk solids
43
Clostridial abomasitis/enteritis causes
Nutritional variations
44
Best necropsy tissue
Liver
45
Best fluid for septic calf
Plasma
46
Antibiotics for septic calf
3rd gen cephalosporin IV
47
Fluoroquinolone use
Illegal except for respiratory disease
48
Target BCS at calving
5.5+/9
49
Best necropsy tissue for calf scours
Small intestine tied segment
50
Target gestation loss + perinatal death
3-4%
51
Target preweaned calf deaths
1-2%
52
Target BCS at breeding
5
53
Pregnancy histogram creation
<120 days post-breeding
54
Cow postpartum anestrus
40-60 days
55
Primiparous postpartum anestrus
80-90+ days
56
Conception Percentage
60-70% per ovulation
57
Days post-calving to conceive
82 days
58
Calving average daily gain
2 lbs/day
59
Infectious diseases affecting early losses
Trichomoniasis, Campylobacter, BVD
60
Poor early breeding performance cause
Cow/nutrition issues
61
Fixed-Time AI protocol
7-day Co-synch + CIDR protocol
62
Core reproductive vaccines
BVD, IBR, Lepto, Vibrio, Brucellosis
63
Vaccines for colostral protection
Clostridials, scours agents

Spring 25: VM 757 - Bovine Herd Medicine (4 decks)

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