Figure 1.
Figure 1.

Postabsorptive serum concentration (μmol/L) of Lys, Thr, His, Val, Phe, and Tyr (panel A, B, C, D, E, and F, respectively) for sows fed high-CP (16.0%) or reduced-CP diets over the 21-d lactation period. Main effect of stage of lactation: P < 0.05. HCP = high CP (16.0% CP; as-fed basis; analyzed contents); MHCP = medium-high CP (15.7% CP); MLCP = medium-low CP (14.3% CP); LCP = low CP (14.6% CP); L = linear; Q = quadratic.

 


Figure 2.
Figure 2.

The mRNA abundance presented as fold changes (±SEM) for genes encoding Lys transporters in mammary tissue of lactating sows fed low-CP (17.6% CP) diets relative to sows fed high-CP (14.6% CP) diets.

 


Figure 3.
Figure 3.

The mRNA abundance presented as fold changes (±SEM) for SLC6A14 mRNA encoding the ATB+,0 transporter protein on d 4 relative to d 14 of lactation (P < 0.05; panel A) and SLC7A6 mRNA encoding the Y+LAT2 transporter protein for sows fed low-CP (17.6% CP) diets relative to sows fed high-CP (14.6% CP) diets on d 4 (P < 0.05) and 14 (P > 0.05) of lactation (panel B).