Talk:Paper - Prenatal growth of the pig

Table 1

Observations

LITTER NO.

13 14 24

17

21

8

2

5 16 23

4

3 18

1 47 11 <8 10 19

9 20 Adult

PRESERVATION

rorm-12 mo. Form-8 mo. Fresh Fresh Fresh

Form-3 mo. Form-2 mo.

Form-4 mo.

Fresh

Form-3-8 mo.

Form-1 mo.

Form-6 wks.

Fresh and Form-5 mo. Form-1 mo.

Form-2 mo.

Form- 1-2 wk.s.

Form-4 mo.

Fresh

NO. .\ND .SEX OP PIGS USED

3 (sex?)

5 (sex?)

6 (sex?) 2M-3F. 2M.â€” 5M-1F. 2M:-2F.

7M-3F.

1M-3F.

6M:-2F.

1M-2F.

1M-3F.

9M-1F.

2M-1F.

2M-4F.

3M-2F.

2M-1F.

21VI-3F.

â€” 3F.

2M-2F.

crown-rump

length, .a.ver.vge

(also min. and

MAX.)

15 (15-16) 18(17-19) 25i:25-26) 37(35-39) 42(41-42) 58(57-60) 82(80-85)

86(70-101)

108(105-U0)

105(77-115)

108(105-110)

131(127-135)

125(110-135)

139(135-141)

150(144-1.52)

156(145-162)

166(155-176)

191(178-202)

215(205-220)

242(224-255)

262(260-265)

1050

TOTAL (GRO.SS) BODY WEIGHT, AVER.A.GE (also MIN. AXD MAX.)

0.2919 (.2621-3392) 0.701 (.636-812) 1.7 (1.57-1 828) 3.25 (2.925-3.47) 4 97 (4 66-5.17) 10 33 C9.52-U).88) 28.2(26.8-29.2) 136.54 (22 2-46.4) lAverage net = 36 38 /74.9 (69.6-83 2) [Average net = 74 3 f90.2 (26.6-116 ) [Average net = 89.8 97.0 (82 0-116.5) Average net = 96 2 [116 2 (107.9-124 .7) \Average net = 115.2 136.7 (96,5-158.7) Average net = 135. 1 153.0(142-162.6) Average net = 151.1 f216. 5 (203.0-299.6) [Average net = 214.3 288.8(265.1-309.6) . Average net = 285.4 [334.7(292.7^377.) [Average net = 328.3 [395. 0(335.2-442.0) \ Average net = 388.9 [465.0 (348.IH532.5) \.'^verage net = 456.2 f731.0 (661.-782.5) [Average net = 718.2 [745.1 (692.7-825.) [-\veragc net = 727.6 [104539. (91021-123614) \Average net = 102145.

112

LAWSON G. LOWREY

TABLE 1 (continued) Average percentage of net body weight {also minimum and maximum)

LITTER NO.

HEAD

BRAIN

EYEBALLS

SPINAL CORD

per cent

V.i

26.36(25.64-27.)

8.95(7.57-9.71)

0.14(.11-.19)

14

29.69(27.46-33.49)

8.97(7.26-10.32)

0.16(. 094-20)

1.87(1.43-2.31)

24

28 95(27 98-29.84)

6-. 45(4. 83-7. 58)

0.38(.31-.43)

1.31(98-1.72)

17

25.44(23 81-27.11)

5.88(5.16-6.71)

0.66(.58-.79)

1.03(46-1.54)

21

26 61(25.33-27.89)

6.88(6.65-7.10)

0.62(.59-.64)

1.45(1 41-1.48)

8

23 51(22 22-24.73)

6 75(4.39-7.73)

0.95(.82-1.03)

0.86(.78-.99)

2

22.12(21.47-23.61)

4.86(4.71-4.95)

0.87(.82-.89)

0.44(.41-.49)

5

25 33(22 36-30.13)

5.49(3.35-7 33)

1.15( 99^1.22)

0.43(.25-.60)

16

19.65(18 06-21.13)

3.31(2.68^.95)

0.73(.69-.76)

0.37(.30-.46)

, 23

21.14(18.83-24.25)

3.55(3.11-4.34)

0.80(.68-1.03)

0.27(.17-.53)

4

22. 86 (20. 95-^24. 77)

3.98(3.25-4.46)

C.77(.65-.87)

0.24( )

3

24.74(22.87-25.^7)

4.55(4.33-4.87)

0.91 (.85-. 94)

0.27(.15-.35)

18

22.38(20.28-23.61)

3.60(2.94^.41)

0.72(.56-.86)

0.23(.13-.42)

1

22.82(22,04-23.96)

4.07(3.60-4.68)

0.78(.74-.81)

0.27(.24-.29)

47

21.17(19 57-23.94)

3.18(2.82-3.48)

0.60( 53-.66)

0.22(. 19-25)

11

23 01(21.56-25.22)

3 55(3.42-3.67)

0.54(.50-.60)

0.21(.17-.27)

48

20 89(19.88-22.61)

3.29(2.98-3.91)

0.45(.42-.48)

0.22(.15-.26)

10

22 67(20.82-25.52)

3.49(3.21-3.82)

0.53(.45-.61)

0.23(.20-.28)

19

21.51(19 68-23.97)

4.08(3.46-5.01)

0.46(.41-.55)

0.26(.20-.32)

9

22 3(21.29-23.31)

3.45(3.2,5-3.72)

0.34(.31-.39)

0.29(23- 33)

20

22.29(21.19-23.27)

3.96(3.79-4.09)

0.41(34-46)

0.33( 31- 37)

Adult

6.26(4.91-7.41)

0.087( )

O.OIK )

0.043(. 038-057)

LITTER NO.

THYROID GLAND

THYMUS

LUNGS

HEART

per cent

13

4.64(4.58-4.74)

14

0.61(?)

3.51(2.73-5.71)

24

0.53(0.42-0.82)

3.26(3.07-3.50)

17

0.99(0.71-1.11)

2.23(2.04-2.39)

21

1.31(1.23-1.39)

2.31(2.16-2.46)

8

0.045(0.032-0.059)

0.099(0.079-0.12)

2.89(2.44-3.13)

2.10(1.62-2,86)

2

0.026(0 018-0.041)

0.054(0 044-0.075)

3.10(2.77-3.46)

1.52(1.46-1.60)

5

043(0 032-0.060)

0.13(0.067-0.18)

3.89(3.35-4.62)

1.46(1.24-1.84)

16

032(0.027-0.035)

0.15 (0 11-0.19)

2.60(2.22-2 93)

0.83(0.75-0.86)

23

0.027(0.017-0 036)

0.16(0.11-0.20)

2 63(2 29-3 19)

0.88(0 77-1.05)

4

031(0 030-0 032)

079(0 072-0.086)

3 53(3.35-3.81)

0.88(0.75-1.03)

3

032(0 026-0.035)

0.17(0.16-0.18)

3.43(3.17-3.79)

0.88(0.82-0.92)

18

0.038(0 032-0.045)

0.21(0.15-0.30)

2.42(1.76-2.93)

0.66(0.57-0.76)

1

031(0 031-0 032)

20(0 18-0.23)

3.35(3.10-3 59)

0.89(0.87-0.93*

47

023(0 01 Gr^ 028)

0.22(0 18-0.28)

2 35(2 01-2.56)

0.72(0.56-0.87)

11

024(0 021-0 027)

22(0.19-0 24)

2 39(2 26-2 70)

0.72(0.66-0.83)

48

016(0 01 1-0 023)

0.24(0 21-0.28)

2 50(2 05-2 70)

0.48(0.44-0 51)

10

021(0.014-0 027)

0.24(0 19-0 28)

2.74(2 62-2.93)

0.67(0.62-0.73)

19

035(0 028-0.039)

0.38(0,31-0 51)

3.03(2 79-3,48)

0.99(0.87-1.14)

9

0.024(0 019-0 028)

0.34(0.27-0.47)

2.19(1 80-2 68)

0.83(0.73-0.94)

20

026(0 025-0 029)

0.37(0 29-0 52)

2 05(1.83-2.23)

1.03(1.0-1 06)

Adult

0.0039( )

(?)

â–

69(0.42-0.85)

0.32(0.29-0 35)

PRENATAL GROWTH OF THE PIG

113

TABLE 1 (continued)

Avei'age percentage of net body weight {also â– minimum and maximum)

LITTER NO.

LIVER

STOMACH AND

INTESTINES WITH

CONTENTS

STOMACH AND INTESTINES EMPTY

SPLEEN

per cent

per tent

per cent

13

12.25(11.58-12,86)

14

11.58(9.23-13.59)

0.27(0.17-0.46)

24

15.88(12.53-17.66)

1.28(0 96-1.62)

17

15.27(13.67-16.88)

1.35(0.97-1.78)

21

14.00(13.32-14.68)

1.62(1.48-1.76)

0.016(0.012-0.019)

8

15.63(14 76-16.86)

2.90(2.41-3.67)

0.039(0.027-0 048)

2

10 51(9 39-11.27)

2.51(2.40-2.66)

0.037(0.031-0 044)

5

9.93(6.81-14.82)

2 95(2.36-3 59)

2 51(2 01-3.05)

0.063(0,038-0,084)

16

8.35(8.04-8.83)

2.75(2.47-2.93)

1.92(1.73-2.06)

0.063(0.054-0 073)

23

5.67(4.84-8.34)

2.34(2.12-2.54)

1.91(1.66-2.25)

0.041(0.026-0.050)

4

5.01(3 88-5.66)

2.83(2.50-3.09)

1.98(1.75-2.16)

0.061(0.050-0.077)

3

4.96(4.44-5 60)

2.96(2.78-3.09)

2.07(1.95-2.16)

0.074(0.067-0 081)

18

6.24(5.58-7.07)

3.46(2.84-4.24)

2.14(1.44-2.59)

0.11(0,087-0.15)

1

4.54(4.29-4.81)

3.59(3.15-4.04)

2.43(2.32-2.63)

0.088(0,075-0.095)

47

5.69(5.18-6.41)

3.60(3.22-3.88)

2.57(2.29-3.05)

079(0 069-0.093)

11

3.46(2 89-3 65)

3.55(3.06-4.21)

2.35(2.05-2.82)

0.092(0.084-0.096)

48

5.00(4 43-5.36)

3.58(3.32-4 06)

2.03(1.78-2.29)

0.081(0.078-0.091)

10

3.33(3 16-3 41)

3.95(3 63-4 26)

2.58(2.34-2.80)

0.15(0.12-0 16)

19

3.82(3.72-4.00)

4.97(4.93-5.01)

3.07(2.96-3.26)

0.17(0.15-0.19)

9

2.67(2 46-2 87)

4.68(3.95-5.26)

2.91(2 44-3.51)

14(0 10-0 18)

20

3.07(2.97-3.26)

5.99(5.75-6.17)

3.59(3.45-3.70)

0.17(0.14-0.22)

Adult

1.38(1 25-1.63)

6.81(5.92-7.63)

4.79(4.15-5.34)

0.13(0.094-0.15)

LITTER NO.

KIDNEYS

WOLFFIAN BODIES

ALL VISCERA

per cent

13

12.10(11.14-12 59)

38.08

14

7.45(6.60-8.15)

34.73

24

0.22(0.17-0 30)

4.71(4.0.3-5.41)

34 15

17

0.69(0 39-0.97)

2.43(2.03-3.03)

30.69

21

0.65(0.60-0.69)

2.86(2.85-2.86)

32.11

8

2.59(2.35-2.89)

1.41(1 29-1.70)

36.65

2

2.54(2.23-2.91)

0.38(0.35-0.39)

27.08

5

2.19(1.74-2.69)

0.24(0,077-0 50)

27.79

16

1.76(1.66-1.79)

0.077(0.064-0 103)

20.38

23

1.52(1 21-2.65)

0.046(0.031-0 063)

17.74

4

1.77(1.67-1.85)

18.48

0.98(0.90-1.09)

IS. 47

18

1.27(1.06-1 51)

0.022(0.013-0 035)

17.86

1

1.59(1 55-1.65)

18 44

47

1.40(1,27-1.55)

17.27

11

1.07(1.00-1.14)

14 81

18

1.09(0.99-1.18)

15.58

10

0.92(0.76-1.01)

15.11

19

1.24(1.06-1.51)

17.76

9

1.02(0.95-1.13)

14 39

20

1.01(0.92-1.07)

16.23

Adult

0.24(0 23-0.27)

7.85

114

LAWSON G. LOWREY

Average percentage

TABLE 1 (continued) of net body weight {also minimum and m'lximum)

LITTER NO.

PANCREAS

SUPRARENALS

GONADS

13

per cent

14

0.13(0.11-0 15)

24

[M. 0.24(0 23-0,24) \F. 0.076(0.061-0.091)

17

hi. 0.25 (0 24-0.26)

IF.

21

0.042(0.034-0.050)

0.11(0 11-0.11)

fM.O.ie (0.15-0.17) \F. 0.094( )

8

0.11(0 082-0.17)

0.13(0,091-0.14)

JM. 0.100(0.097-0. 103) \F. 0.077 (0,044-0.11)

2

0.081(0.078-0.086)

062(0 048-0 071)

'm. 0.072(0.0.54-0.096) 'f. 0.047(0.036-0.061)

5

12(0.059-0.16)

0.079(0 048-0.12)

M. 0.084( )

' F. 0.035(0.022-0.047)

16

0.11(0 091-0.13)

0.035(0 027-0 040)

/M.0. 059(0 044-0.082) \F. 0,025(0.023-0.027)

23

0.12(0.082-0.14)

052(0.036-0.075)

/M. 0.023 ( )

\F. 0.034(0.033-0.034)

4

0.082(0.069-0 093)

030(0.026-0 036)

|M.O 046( )

\F. 0.039(0.031-0 044)

3

0.11(0.093-0.13)

0.034(0.031-0.038)

[M.O 041(0.031-0 065) \F. 0.024( )

18

12(0 096-0.16)

0.087(0.032-0.54)

fM. 0.040(0.039-0 040)

<

\f.

1

0.13(0.099-0.17)

027(0 021-0.033)

JM. 0.033(0.028-0.038) \f. 0,023(0,021-0,026)

47

0.13(0.10-0.15)

026(0 020-0.033)

rM.0.038( )

\F.O 023(0.022-0.025)

11

0.14(0 09.5-0.17)

0,019(0.014-0-021)

fM. 0.037(0.032-0.042) \F. 0.019(0.015-0.023)

48

0.11(0 12-0 16)

I 022(0.017-0.026) v

|M. 0.028(0.025-0.033) \F. 0.017(0.012-0.021)

10

0.17(0 13^.24)

0.016(0.014-0.021)

19

0.19(0. 17-0.20)

0.023(0.019-0.026)

fM.

\f. 0.022( )

|m. 0.038(0.033-0.043) \f. 0,014(0.013-0.016)

9

0.15(0 13-0 17)

0.013(0.011-0.015)

20

0.16(0.13-0.21)

0.019(0 013-0 022)

fM.

\f. 0.035(0.025-0 016)

Adults

0.14(0.13-0.15)

0.0053(0.0032-0,007,3)

fM.

\f. 0,015(0,013-0,017)

Table 2

Table of comparative growth

THREE WEEKS

Absolute weight Absolute weight

Number of times increase

Pig

Human. . . Rabbit... White rat

Chick....

0.000003 0.000004 0.000003 0. 000003 (?) (total egg ) (35-40 g.)

9-

0.25 0.016 11.7 5.0

30.0

83,000

4,000

3,900,000

1,670,000

(?)

112 DAYS

SIXTEEN MONTHS (PRE + POSTNATAL)

ANIMAL

Absolute weight

Number of times weight of ovum

Absolute weight

Number of times weight of ovum

Pig

Human

Rabbit

g-

826

120 1000 (?)

140 1000 (?)

275,000,000 30,000,000

333,000,000 (?) 47,000,000

(?)

9-

100,000 8,000 2,000(?) 275(?) 2,000(?)

33,000,000,000 2,000,000,000 667,000,000(?) 92,000,000(?) (?)

White rat

Chick

Table 3

Ratio of adult to newborn

weight

ANIMAL

WEIGHT OF NEWBORN

WEIGHT OF ADULT

WEIGHT ADULT WEIGHT NEWBORN

Pig

g-

826

9- 100,000

121

Human

3200

60,000

19

Rabbit

38.35

2,500 (?)

65(?)

White rat

5.00

300

60

Chick

30.00

2,000

66(?)

Table 4

Absolute and relative weight of the Wolffian bodies

LITTER

AVERAGE WEIGHT WOLFFI.A.N BODIES

AVERAGE PER CENT OF TOTAL BODY

13 (15 mm.)

9-

0.0335

0.0522

0.080

0.146

0.105

0.057

0.029

12.10

14 (18 mm.)

7.45

24 (25 mm.)

8 (58 mm.)

4.71 1.41

2 (82 mm.)

0.38

16 â– (108 mm.)

18 (125 mm.)

0.077 0.022