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CLOSE THIS BOOKRestraining Animals and Simple Treatments (IIRR, 1996, 53 p.)
VIEW THE DOCUMENT(introduction...)
VIEW THE DOCUMENTForeword
VIEW THE DOCUMENTRestraining animals
VIEW THE DOCUMENTPhysical examination
VIEW THE DOCUMENTParaveterinary kit
VIEW THE DOCUMENTDosages
VIEW THE DOCUMENTCommon units of measurement
VIEW THE DOCUMENTReading drug labels
VIEW THE DOCUMENTEstimating live weight
VIEW THE DOCUMENTAdministering medicine
VIEW THE DOCUMENTEmergency procedures
VIEW THE DOCUMENTWhen to call a veterinarian
VIEW THE DOCUMENTGlossary

Estimating live weight

Estimating your animal's weight is important not only for monitoring growth but also in determining dosages of certain medicines. To estimate live weight you will need a tape measure and a weight chart.


Large ruminants

Live weight of large ruminants can be estimated by measuring the chest girth with a tape measure or a calibrated string Approximate weight can be calculated using the table below.

Girth

Weight

(cm)

(kg)

65

35

70

40

75

45

80

50

85

59

90

69

95

79

100

89

105

103

110

118

115

134

120

150

125

170

130

190

135

210

1 40

230

145

252

150

272

155

295

160

325

165

360

170

392

175

477

180

467

155

508

190

552

195

598

200

648

205

698

210

748

215

798

220

850

225

905

230

969

Source: Veterinary Research Institute, Sri Lanka


Small ruminants

Measure the heart girth of small ruminants (goats or sheep) using a tape measure or string. Pull the tape tight Use the table below to estimate the weight.

Hearth girth

Body weight

(in)

(cm)

(lb)

(kg)

10 ¾

27.3

5

2.3

11¾

28.6

5 ¾

2.5

11 ¾

29.9

6

2.7

12¼

31.1

6 ½

3

12 ¾

32.4

7

3.2

13 ¼

33.7

8

3.6

13 ¾

34 9

9

4.1

14 ¾

36.2

10

4.5

14¾

37.5

11

5

15 ¼

38.7

12

5.4

15 ¾

40

13

5.9

16 ¼

41.3

15

6.8

16 ¾

42.7

17

7.7

17 ¾

43.8

19

8.6

17 ¾

45.1

21

9.5

18 ¼

46.4

23

10.4

18 ¾

47.6

25

11.3

19 ¼

48.9

27

12.2

19 ¾

50.2

29

13.2

20 ¼

51.4

31

14.1

20 ¾

52.7

33

15

21 ¼

53.9

35

15.9

21 ¾

55.3

37

16.8

22 ¾

56.5

39

17.7

22 ¾

57.8

42

19.1

23 ¾

59.1

45

20.4

23 ¾

60.3

48

21.8

24 ¾

61.6

51

23.1

24 ¾

62.9

54

24.5

25 ¾

64.1

57

25.8

25 ¾

65.4

60

27.2

26 ¾

66.7

63

28.6

26 ¾

67.9

66

29.9

27 ¾

69.2

69

31.3

27 ¾

70.5

72

32.7

28 ¾

71.7

75

34

28 ¾

73

78

35.4

29 ¾

74.3

81

36.7

29 ¾

75.6

84

38.1

30 ¾

76.8

87

39.5

30 ¾

78

90

40.8

31 ¾

79.4

93

42.2

31 ¼

80.7

97

44

32 ¾

81.9

101

45.8

32 ¾

83.2

105

47.6

33 ¾

84.5

110

49.9

33 ¾

85.7

115

52.2

34 ¾

87

120

54.4

34 ¾

88.3

125

56.7

35 ¾

89.5

130

59

35 ¾

90.8

135

61.2

36 ¾

92.1

140

63.5

36 ¾

93.4

145

65.8

37 ¾

94.6

150

68.1

37 ¾

95.9

155

70.3

38 ¾

97.2

160

72.6

38 ¾

98.4

165

74.8

39 ¾

99.7

170

77.1

39 ¾

101

175

79.4

40 ¾

102.2

180

81.6

40 ¾

103.5

185

83.9

41 ¼

104.8

190

86.2

41 ¾

106.1

195

88.4


Swine

Live weight of swine can be estimated by measuring the body length (from the back of the head to the base of the tail) and the heart girth of the animal with a tape measure. Using the table below, an approximate weight can be calculated For example, if the body length is 130 cm and the heart girth is 110 cm, the swine weighs about 105 kg.

Heart girth (cm)


80

90

100

110

120

130

140

Body weight (kg)

80

36

40

48

60

75

94

116

90

42

47

55

67

82

101

123

100

50

55

63

75

90

108

130

110

59

64

72

84

90

117

139

120

69

74

82

94

109

120

150

130

80

85

94

105

120

139

161

140

93

98

106

118

133

151

173

150

107

111

120

132

147

165

187

Weighing piglets

Usually, piglets are weighed for sale. There are several ways to weigh a piglet.


Place piglets in sack or box and hang from scale.


Hang a piglet on a scale, using a strap looped under its belly.


Weighing pigs over 50 kilos

There are two common ways of determining the weight of pigs over 50 kg. These are:

Weigh the animal on a platform scale. Estimate its weight using an ordinary tape measure.

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