Table 1.
Ingredients, chemical composition, and fatty acids profile of the experimental concentrates and of the hay and rolled barley administered to the ewes.
| Grass hay | Rolled barley | Control diet | CHT diet | QUE diet | |
|---|---|---|---|---|---|
| Ingredients (g kg −1 of DM) | |||||
| Barley | 213.8 | 213.8 | 213.8 | ||
| Corn | 211.3 | 211.3 | 211.3 | ||
| Wheat bran | 158.5 | 158.5 | 158.5 | ||
| Soybean meal (44 CP) | 126.8 | 126.8 | 126.8 | ||
| Beet pulp | 89.8 | 89.8 | 89.8 | ||
| Soybean oil1 | 84.5 | 84.5 | 84.5 | ||
| Bentonite | 52.8 | - | - | ||
| Chestnut tannin extract2 | - | 52.8 | - | ||
| Quebracho tannin extract3 | - | - | 52.8 | ||
| Molasses | 41.3 | 41.3 | 41.3 | ||
| CaCO3 | 10.6 | 10.6 | 10.6 | ||
| Sodium bicarbonate | 5.3 | 5.3 | 5.3 | ||
| Dicalcium phosphate | 5.3 | 5.3 | 5.3 | ||
| Chemical composition (g kg −1 of DM) | |||||
| Organic matter | 847.0 | 859.9 | 816.9 | 858.1 | 869.6 |
| Crude protein | 111.2 | 121.0 | 165.6 | 173.7 | 170.3 |
| Ether extract | 12.0 | 16.1 | 109.4 | 105.4 | 102.4 |
| NDF | 636.4 | 134.1 | 174.7 | 181.4 | 172.1 |
| ADF | 501.3 | 54.2 | 77.6 | 72.4 | 74.3 |
| ADL | 105.7 | 14.9 | 10.6 | 13.3 | 8.7 |
| Ash | 69.6 | 21.0 | 84.6 | 39.9 | 39.4 |
| ME (MJ kg−1 DM) | 7.8 | 9.9 | 13.1 | 14.1 | 14.1 |
| NEl (Mcal kg−1 DM) | 0.9 | 1.2 | 2.0 | 2.1 | 2.1 |
| Fatty acids (g/100 g of total fatty acids) | |||||
| 16:0 | 35.5 | 18.2 | 14.0 | 14.4 | 14.9 |
| SA, 18:0 | 5.8 | 4.6 | 3.6 | 3.4 | 3.4 |
| 18:1 cis9 | 9.3 | 21.2 | 23.3 | 22.9 | 22.0 |
| LA, 18:2 cis9 cis12 | 28.5 | 45.0 | 51.4 | 51.7 | 51.8 |
| LNA, 18:3 cis9 cis12 cis15 | 2.8 | 6.0 | 5.8 | 5.6 | 5.8 |
| Other FA | 18.1 | 4.9 | 1.9 | 2.0 | 2.1 |
1Fatty acid profile of soybean oil (g/100 g of total fatty acids): C16:0, 11.01; C18:0, 3.6; C18:1 cis9, 22.09; C18:2 cis9 and cis12, 53.7; C18:3 cis9, cis12, and cis15, 7.2. 2Hydrolysable tannins extracted from chestnut wood (Castanea sativa Mill.) containing 750 g of equivalent tannic acid/kg DM (provided by Gruppo Mauro Saviola Srl Radicofani, Siena, Italy). 3Condensed tannins extracted from quebracho (Schinopsis lorentzii) containing 456 g of equivalent tannic acid/kg DM (provided by Guido Lapi SpA, Castel Franco di Sotto, Pisa, Italy).