Data/hora: 03/06/2024 09:14:27

Biblioteca(s): | Epagri-Sede.
Data corrente: | 13/09/2016
Data da última atualização: | 13/09/2016
Autoria: | PINTO, C. E.; BALDISSERA, T. C.; PICINATTO FILHO, V.; GARAGORRY, F. C.; DAVID, D. B.; CARVALHO, R. M. R.; SEEGER, B. B.; CARVALHO, P. C. F.; QUADROS, F. L. F.; TRINDADE, J. K.
Título: | Recording system to evaluate ingestive behavior and geographical location of domestic herbivores.
Ano de publicação: | 2016
Fonte/Imprenta: | In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado, RS. Resumos... Porto Alegre, RS: SBZ, 2016.
Idioma: | Inglês

Conteúdo:

The knowledge on the behavioral and ingestive patterns of grazing animals is important, because
it is useful to establish management targets in grazing environments. However, there is need for
tools that enable an accurate, continuous and easy animal monitoring. The objective was to
develop a recording system to monitor and analyze parameters of ingestive behavior
concomitantly with geographic location of grazing animals. For this purpose, we used a
bioacoustic technique with intention of discriminate behavioral activities of domestic herbivores.
The system consist of a digital recorder (Roland®, R-05), lavalier microphone (Leson®, ML-
70D), GPS receiver (Holux®, RCV-3000) and power bank with 11.000 mAh (El Shaddai
Technology). Adaptation and fields evaluations were performed in the experimental farms of
FEPAGRO (São Gabriel, RS, Brazil) and EPAGRI (Lages, SC, Brazil). The system allowed to
discriminate and monitor, continuously for up to 48 h, when and where the animals perform their
activities, such as grazing and rumination. There are limitations of compatible memory cards
with the digital recorder for registers more than 50 h in high-resolution mode (WAV 16-bit/44.1
kHz), however recordings in MP3 format allow 540 h on 32 GB SDHC card. The acoustic
records can be analyzed using Audacity®, which is a free software. Grazing, rumination and
idleness can be easily discriminated because these activities has markedly distinct acoustic
characteristics. In addition, in this software is possibly to parametrize the acoustic target
characteristics for the automatic identification of the mandibular movements (bites and chews).
However, we still need more studies to define the parameters and automatic identification due to
the variations in grazing conditions and animals. The synchronization of digital recorder and
GPS logger allow to spatialize the variables of ingestive behavior. The system evolution can
provides important potential for the estimation of bite mass, allowing the use of bioacoustic
technique in domestic herbivores a tool to estimate animal forage intake in grazing condition.

Palavras-Chave: | bioacoustic; forage intake; grazing; rumination.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_38259.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (100477-1) - UPC - PL - DD -  -  -  - DIS