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This study examined differences in selected components of uterine secretions from Large White and prolific Chinese Meishan gilts during the oestrous cycle or early pregnancy. Total recoverable protein, uteroferrin (measured as acid phosphatase activity), acyl aminopeptidase, calcium, sodium, potassium, immunoglobulins A and G, glucose, fructose, oestradiol-17 beta, and prostaglandins F2 alpha (PGF2 alpha) and E2 (PGE2) in uterine flushings were measured. During the oestrous cycle, breed effects were detected only for total protein (P = 0.07), which tended to be higher for Large White gilts. However, for pregnant gilts, total recoverable glucose (P less than 0.05), fructose (P less than 0.05) sodium (P less than 0.05), immunoglobulin A (P less than 0.01), PGF (P less than 0.01), PGE (P less than 0.01), and acyl aminopeptidase (P less than 0.05) were greater in uterine flushings from Meishan gilts. Only uteroferrin was higher (P = 0.06) in uterine flushings from Large White gilts. Concentrations of prolactin were higher (P less than 0.05) in plasma from cyclic or pregnant Meishan gilts, but concentrations of total oestrogens and progesterone were not affected by pregnancy status or breed. These results suggest that Meishan conceptuses, individually or collectively, are more stimulatory to endometrial secretion and/or transport of the components of histotroph into the uterine lumen, or that the endometrium of Meishan gilts is more sensitive to conceptus signals responsible for the accumulation of histotroph in the uterine lumen.
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
June 1989,
Journal of animal science,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
January 2016,
PloS one,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
May 1994,
Journal of reproduction and fertility,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
January 1991,
Biology of the neonate,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
August 1994,
Journal of animal science,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
November 1990,
Journal of reproduction and fertility,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
May 1997,
Biology of reproduction,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
January 1997,
Reproduction, fertility, and development,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
February 2000,
Domestic animal endocrinology,
F W Bazer, and
W W Thatcher, and
F Matinat-Botte, and
M Terqui, and
M C Lacroix, and
S Bernard, and
M Revault, and
D H Dubois
May 2003,
Animal reproduction science,
