Nutrient Changes and in Vitro Digestibility in Generative Stage of M10-BMR Sorghum Mutant Lines
Abstract: The objective of
this research was to investigate the influences of generative stage on crude
protein, crude fiber, ash, and crude fat contents as well as in-vitro dry
matter and organic matter digestibilities of M-10 BMR sorghum mutant lines.
This research was arranged into a randomized block design with 2 factors. The
first factor was M-10 BMR sorghum mutant lines (Patir 3.1, Patir 3.2 and Patir
3.7) and the second factor was generative stages (flowering, soft dough and
hard dough phase). The observed variables were proximate contents of stem,
leaves and panicle of sorghum plant and in-vitro digestibility of whole plant.
The results showed that leaves crude protein (CP) was more influenced by M-10
BMR sorghum mutant lines. Stems and panicles CP were influenced by the
interaction between M-10 BMR sorghum mutant lines and generative stages.
Further generative stage reduced stems CP but increased panicles CP. Crude
fiber (CF), ash, and ether extract (EE) in leaves were not influenced by
generative stages. Stems CF was influenced by M-10 BMR sorghum mutant lines and
generative stages, while stems EE was more influenced by generative stages.
Stems ash content was influenced by the interaction between M-10 BMR sorghum
mutant lines and generative stages while panicles ash content was more
influenced by generative stages. M-10 BMR sorghum mutant lines and hard dough
phase increased in-vitro dry matter and organic matter digestibilities. Based
on those findings, it can be concluded that the increased maturity reduces CP
and CF contents so it increases in-vitro digestibilities.
Keywords: brown midrib
sorghum; in vitro digestibility; generative stage; sorghum mutant lines
Author: R. Sriagtula, P.D.M.H.
Karti, L. Abdullah, S Supriyanto, D. A. Astuti
Journal Code: jppeternakangg170060
