Table 3.
Average daily intake (g) of individual diets by 4 groups of lambs (N = 8) receiving 2-way choices between isoenergetic feeds that varied in protein concentration (HP and LP) and the addition of a mix (4% DM) of condensed and hydrolizable tannins (Tannin Presence; Yes, No)
| Protein concentration | ||||||
|---|---|---|---|---|---|---|
| HP | LP | |||||
| Tannin presence | ||||||
| Treatment1 | Yes | No | Yes | No | SE2 | P value |
| HP − LP− | — | 992a | — | 631b | 14.3 | <0.05 <0.05 |
| HP − LP+ | — | 960a | 584b | — | 15.2 | |
| HP + LP− | 726a | — | — | 669b | 13.7 | <0.05 |
| HP + LP+ | 917a | — | 690b | — | 12.5 | <0.05 |
| Protein concentration × Tannin presence | 821a | 976b | 637c | 650d | 5.5 | <0.0001 |
1Lambs received a simultaneous offer of diets with low (LP) and high (HP) concentrations of CP (Control; HP − LP−); LP + tannins and HP (HP − LP+); LP and HP + tannins (HP + LP−); and both LP and HP with tannins (HP + LP+). 2Standard error.
a,b,c,dMeans within a row followed by different lower-case letters differ (P < 0.05).