Nutritional evaluation of safflower silage and biomass, seed and oil production

Authors

  • R. A. Possenti Instituto de Zootecnia, Nova Odessa, SP
  • A. M. Arantes Instituto de Zootecnia, Nova Odessa, SP
  • P. Brás Instituto de Zootecnia, Nova Odessa, SP
  • J. B. Andrade Instituto de Zootecnia, Nova Odessa, SP
  • E. Ferrari Júnior Instituto de Zootecnia, Nova Odessa, SP

DOI:

https://doi.org/10.17523/bia.v73n3p236

Keywords:

Carthamus tinctorium L., forage conservation, apparent digestibility, sheep.

Abstract

The  objective  of  this study  was  to evaluate the nutritional value of safflower biomass  (Carthamus tinctorium L.) ensiled in three treatments. An apparent nutrient digestibility assay was conducted using sheep and the chemical composition and in vitro digestibility of dry matter (DM) were determined in the biomass and silages obtained. The production of DM, seeds and crude oil per hectare safflower crop was also quantified and was 12.4±4.9, 2.9±1.5 and 0.7 ±0.2 t/ha, respectively. The following ensiling treatments  were applied: FS = freshly ensiled safflower; WS = wilted safflower (sun exposure for 2 hours); SCP = safflower + 5% citrus pulp. The chemical composition of the FS, WS and SCP silages, respectively, was 10.8, 11.15 and 10.07% crude protein, 55.22, 55.4 and 52.2% neutral detergent fiber, and 55.6, 53.45 and 57.87% in vitro DM digestibility. A randomized complete block design with animal weight as blocks was used. The apparent DM digestibility of the silages was 55.96, 55.54 and 57.94% and total digestible nutrients were 57.62, 57.49 and 57.87% for FS, WS and SCP, respectively. The results  indicate  the use  of  safflower conserved  as  silage  in ruminant diets as an alternative to roughage. However, the biomass ensiling treatments showed no differences in terms of physicochemical parameters, intake or nutrient digestibility of the silages that would justify their application.

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Published

2016-09-30

Issue

Section

ANIMAL NUTRITION

How to Cite

Nutritional evaluation of safflower silage and biomass, seed and oil production. (2016). Bulletin of Animal Husbandry, 73(3), 236-243. https://doi.org/10.17523/bia.v73n3p236

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