. Author manuscript; available in PMC: 2011 Apr 5.

Published in final edited form as: Poult Sci. 2010 Sep;89(9):1815–1824. doi: 10.3382/ps.2010-00754

Table 2.

Locations of blood pressures recorded in 8 to 24 wk old female (F) and male (M) broilers as a catheter was advanced through the vasculature (Venous 1, R. Atrium 1, R. Ventricle 1, and Pulmonary Artery 1 pressures) until the wedge pressure was obtained, and as the catheter was withdrawn from the vasculature (Pulmonary Artery 2, R. Ventricle 2, R. Atrium 2, and Venous 2 pressures)¹

Vascular Location	Gender	Wk of Age²
Vascular Location	Gender	8	12	16	20	24 Wk H2	24 Wk H3
Venous 1, mmHg	F	8.5 ± 0.4	10.9 ± 0.7	8.4 ± 0.8	9.3 ± 0.8	9.7 ± 1.1	10.4 ± 0.7
Venous 1, mmHg	M	9.8 ± 1.2	10.4 ± 0.8	9.2 ± 1.2	8.4 ± 0.9	7.3 ± 0.5	9.3 ± 0.8
R. Atrium 1, mmHg	F	7.3 ± 0.3	10.2 ± 0.9	7.2 ± 0.9	8.7 ± 0.7	8.5 ± 1.0	9.6 ± 0.7
R. Atrium 1, mmHg	M	8.2 ± 1.0	9.6 ± 1.2	7.7 ± 1.1	6.4 ± 0.6	6.2 ± 0.4	8.1 ± 0.8
R. Ventricle 1, mmHg	F	23.7 ± 1.3^ab	24.6 ± 1.2^ab	21.0 ± 1.2^ab	22.2 ± 1.3^ab	20.1 ± 1.5^ab	19.5 ± 1.5^ab
R. Ventricle 1, mmHg	M	25.9 ± 2.0^a	22.6 ± 1.5^ab	21.9 ± 1.8^ab	21.8 ± 1.6^ab	17.1 ± 1.1^ab	19.0 ± 1.4^b
Pulmonary Artery 1, mmHg	F	34.2 ± 2.2^ab	29.5 ± 1.4^ab	26.6 ± 2.1^b	28.3 ± 1.7^ab	25.5 ± 2.5^b	27.2 ± 2.4^b
Pulmonary Artery 1, mmHg	M	38.2 ± 3.4^a	32.0 ± 2.0^ab	29.5 ± 2.7^ab	32.0 ± 2.9^ab	26.7 ± 1.6^b	27.4 ± 2.1^ab
Wedge, mmHg	F	11.4 ± 0.7^ab	14.2 ± 0.9^ab	11.8 ± 0.9^ab	12.9 ± 0.7^ab	13.0 ± 0.9^ab	13.5 ± 0.6^ab
Wedge, mmHg	M	11.9 ± 1.2^ab	14.6 ± 0.8^a	11.0 ± 1.2^ab	11.6 ± 0.7^ab	11.0 ± 0.5^ab	10.1 ± 0.9^b
Pulmonary Artery 2, mmHg	F	34.2 ± 2.2	29.1 ± 1.4	26.4 ± 2.1	28.4 ± 1.7	25.7 ± 2.3	26.4 ± 2.4
Pulmonary Artery 2, mmHg	M	35.9 ± 3.2	32.2 ± 1.7	29.6 ± 3.0	31.1 ± 2.8	26.2 ± 1.4	26.6 ± 2.0
R. Ventricle 2, mmHg	F	23.8 ± 1.4	23.0 ± 1.1	20.9 ± 1.7	22.1 ± 1.2	20.0 ± 1.6	20.2 ± 1.6
R. Ventricle 2, mmHg	M	24.6 ± 2.4	23.7 ± 1.8	22.0 ± 2.0	21.6 ± 1.8	17.8 ± 1.4	19.2 ± 1.4
R. Atrium 2, mmHg	F	7.8 ± 0.4	10.0 ± 0.8	7.8 ± 0.8	8.3 ± 0.6	8.8 ± 0.9	9.6 ± 0.6
R. Atrium 2, mmHg	M	8.3 ± 1.1	8.9 ± 0.9	8.2 ± 1.2	6.4 ± 0.6	6.3 ± 0.4	8.6 ± 0.8
Venous 2, mmHg	F	8.5 ± 0.4	10.8 ± 0.8	8.6 ± 0.8	9.0 ± 0.7	9.8 ± 1.0	10.3 ± 0.7
Venous 2, mmHg	M	9.5 ± 1.0	10.6 ± 0.8	9.8 ± 1.2	7.7 ± 0.6	7.5 ± 0.4	9.8 ± 0.8
Trans-Pulmonary Gradient, mmHg	F	22.8 ± 2.1^ab	15.4 ± 1.4^b	14.8 ± 1.8^b	15.5 ± 1.4^b	12.5 ± 2.1^b	13.7 ± 2.2^b
Trans-Pulmonary Gradient, mmHg	M	26.3 ± 2.9^a	17.3 ± 2.0^ab	18.5 ± 2.5^ab	20.4 ± 2.6^ab	15.7 ± 1.4^b	17.3 ± 1.7^ab

^a,b

Superscripts designate differences (P ≤ 0.05) between genders and ages within a variable.

Data are presented as mean ± SEM. The trans-pulmonary gradient equals the pulmonary artery pressure minus the wedge pressure.

Sufficient numbers of birds were available from the second and third hatches (H2 and H3) to obtain duplicate groups at 24 wk of age.