<b><em>In situ</em> degradability and <em>in vitro</em> digestibility of different varieties of sunflower seeds (<em>Helianthus annuus</em> L.)</b> - DOI: 10.4025/actascianimsci.v26i4.1737

Abstract

This work had the goal to evaluate the in vitro digestibility of dry matter (MS), crude protein (PB), ethereal extract (EE) and neutral detergent fiber (NDF) of the whole or broken grain of the following varieties C11, Embrapa 122 and M734 and in situ degradability of dry matter, crude protein and crude energy of sunflower seed, variety Catisol. The DIVMS of M734 was lower in 15,5 and 14,4%, when compared to the varieties C11 and Embrapa 122, respectively. In the DIVEE, the difference was 22,5% and 19,1%, respectively. The superiority of DIVPB in the variety C11 was 3,1% when compared to the varieties Embrapa 122 and M734. The fraction a of the broken grain obtained superior coefficient in 45,1% to MS, 70,7% to PB, 72,6% to EE and 84,9% to DFN when compared to the whole grain. The fraction b of the whole grain was bigger in 33,8% to MS, 36,4% to PB, 26,9% to EE. To FDN, the broken grain was superior in 42,9%. The fraction c was superior to MS, PB, EE and FDN of the broken grain related to the whole grain in 92,7; 94,7; 96,1 and 62,9%, respectively. The effective degradability of MS (DEMS), PB (DEPB), EE (DEEE) and FDN (DEFDN) to 5%/h, were higher to the whole grain in 60,0; 73,9; 80,0 and 76,2%, respectively. In the passage tax of 8%/h, the superiority of the broken grain was 60,6; 75,6; 81,0 e 78,7%, respectively.