Fermentative losses and chemical composition and in vitro digestibility of corn grain silage rehydrated with water or acid whey combined with bacterial-enzymatic inoculant

Authors

DOI:

https://doi.org/10.5433/1679-0359.2021v42n6p3497

Keywords:

Aerobic stability, Dry matter recovery, Rehydrated corn grain silage, acid whey, Fermentation.

Abstract

This study aimed to evaluate the effects of rehydration with water or acid whey, as well as the effects of bacterial-enzymatic inoculant on fermentation losses, aerobic stability, and chemical composition and in vitro digestibility of corn grain silages. The treatments consisted of corn kernels (Zea mays) ground through a 3-mm sieve and rehydrated with chlorine-free water or unsalted whey (NaCl) combined or not with bacterial-enzymatic inoculant. This was a 2 x 2 factorial completely randomized design with sources of rehydration (water or whey) and absence and presence of bacterial-enzymatic inoculant with eight replications. Water and acid whey were added to ground corn with 12% moisture in order to increase it to 35%. Rehydrated corn was ensiled in Polyvinyl chloride (PVC) minisilos and stored for 60 d. The bacterial-enzymatic inoculant used was composed of Lactobacillus curvatus, L. acidophilus, L. plantarum, L. buchneri, L. lactis, Pediococcus acidilactici, Propionibacterium acidipropionici and Enterococcus faecium, in concentrations of 1010 CFU g-1 and 5% cellulose-based enzyme complex. The aerobic exposure of silages was evaluated for 120 hours. There was interaction (P = 0.02) between the sources of rehydration and the use or not of the inoculant on the values of silage temperature during aerobic exposure. There was a difference for dry matter (DM) losses (P=0.38) between rehydrated corn silages with and without inoculant. DM losses were 37.51% higher in silage without inoculant compared to silage with inoculant (3.84% DM). There was no difference between the sources of rehydration on DM losses (P = 0.39), with a mean value of 4.99%. Corn rehydration using acid whey (P < 0.01) increased 2.19% and 31.36% DM and ash content compared to water, an average of 66.14% and 1.28%, respectively. There was no interaction (P = 0.30) between the sources of rehydration and the use of inoculants on the in vitro digestibility of DM (mean of 79.26%). The use of the bacterial-enzymatic inoculant improved the fermentation characteristics, aerobic stability and nutritional value of corn grain silage rehydrated with water or whey.

Author Biographies

Fernanda Naiara Fogaça da Cruz, Universidade Estadual de Montes Claros

Student of Animal Science Master's Course, Universidade Estadual de Montes Claros, UNIMONTES, Janaúba, MG, Brazil.

Flávio Pinto Monção, Universidade Estadual de Montes Claros

Prof. and Researcher PNPD/Capes, Postgraduate Program in Animal Science (Master), UNIMONTES, Janaúba, MG, Brazil.

Vicente Ribeiro Rocha Júnior, Universidade Estadual de Montes Claros

Prof. Dr., Postgraduate Program in Animal Science (Master), UNIMONTES, Janaúba, MG, Brazil.

Amanda Maria Silva Alencar, Universidade Estadual de Montes Claros

Student of Animal Science Master's Course, Universidade Estadual de Montes Claros, UNIMONTES, Janaúba, MG, Brazil.

João Paulo Sampaio Rigueira, Universidade Estadual de Montes Claros

Prof. Dr., Postgraduate Program in Animal Science (Master), UNIMONTES, Janaúba, MG, Brazil.

Ariadne Freitas Silva, Universidade Estadual de Montes Claros

Student of Animal Science Master's Course, Universidade Estadual de Montes Claros, UNIMONTES, Janaúba, MG, Brazil.

Renan Lucas Miorin, Instituto Federal de Mato Grosso

Prof. EBTT, Dr., Instituto Federal do Mato Grosso, IFMT, Guarantã do Norte, MT, Brazil.

Ana Cláudia Maia Soares, PLM Representation in Animal Nutrition

Dra. in Animal Science, PLM Representation in Animal Nutrition, Janaúba, MG, Brazil.

Cinara da Cunha Siqueira Carvalho, Universidade Estadual de Montes Claros

Profa Dra, Postgraduate Program in Animal Science (Master), UNIMONTES, Janaúba, MG, Brazil.

Carlos Juliano Brant Albuquerque, Universidade Estadual de Montes Claros

Prof. Dr., Postgraduate Program in Animal Science (Master), UNIMONTES, Janaúba, MG, Brazil.

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Published

2021-08-12

How to Cite

Cruz, F. N. F. da, Monção, F. P., Rocha Júnior, V. R., Alencar, A. M. S., Rigueira, J. P. S., Silva, A. F., … Albuquerque, C. J. B. (2021). Fermentative losses and chemical composition and in vitro digestibility of corn grain silage rehydrated with water or acid whey combined with bacterial-enzymatic inoculant. Semina: Ciências Agrárias, 42(6), 3497–3514. https://doi.org/10.5433/1679-0359.2021v42n6p3497

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