From: Incorporation apricot seed kernel as untraditional source of protein in rabbit rations
Item | Experimental rations | SEM | ||||
---|---|---|---|---|---|---|
R1 | R2 | R3 | R4 | R5 | ||
0% ASK | 0.75% ASK | 1.5% ASK | 3% ASK | 4.5% ASK | ||
Slaughter weight (SW), g | 2299b | 2796a | 2266b | 2558ab | 2477ab | 73.87 |
Total external offal, g | 549b | 708a | 547b | 655ab | 616ab | 24.48 |
Digestive tract, g | 325 | 334 | 320 | 327 | 354 | 19.57 |
Head, g | 134 | 145 | 133 | 146 | 141 | 3.14 |
Total internal offal (giblets), g | 85b | 109a | 95ab | 113a | 99ab | 3.83 |
Carcass weight (CW1), g | 1206b | 1500a | 1219b | 1317ab | 1267b | 38.84 |
Carcass weight (CW2), g | 1425b | 1754a | 1447b | 1576ab | 1507b | 42.90 |
Dressing percentages (DP1), % | 52.46 | 53.65 | 53.80 | 51.49 | 51.15 | 0.47 |
Dressing percentages (DP2), % | 61.98 | 62.73 | 63.86 | 61.61 | 60.84 | 0.49 |
Chemical analysis of best 9th, 10th, and 11th ribs | ||||||
 Moisture | 34.81 | 33.08 | 32.39 | 44.90 | 35.64 | 2.02 |
Chemical analysis on DM basis | ||||||
 Crude protein (CP) | 57.32c | 63.52ab | 64.85a | 62.42b | 59.44c | 0.79 |
 Ether extract (EE) | 35.04a | 28.68bc | 26.53c | 30.19b | 33.27a | 0.87 |
 Ash | 7.64b | 7.80b | 8.62a | 7.39b | 7.29b | 0.16 |