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4. Núcleo de Pesquisa sobre Crianças, Adolescestes e Jovens - Universidade Federal do Piauí - NUPEC/UFPI - Cosecha

Título :	Behavior of goats on palisade grass pasture under rotational stocking in two regrowth ages Comportamento de caprinos em pastagem de capim marandu manejado sob lotação rotacionada em duas idades de rebrotação
Palabras clave :	massa de forragem;taxa de bocados;tempo de pastejo
Editorial :	Federal University of Piauí
Descripción :	This study evaluated the behavior of goats on pastures of Brachiaria brizantha cv. Marandu managedunder rotational stocking with three days of grazing and 28 and 43 days of rest. The experimentaldesign was completely randomized with two treatments and eight replications. Early pregnantAnglo-Nubian goats were used as test and control animals. The activities of grazing, idleness,movement and rumination were recorded every 15 minutes. Feeding behavior was evaluated bythe rate and depth of bites. The 43 day-rest period resulted in increased height and total productionof dry matter and leaves and lower leaf/stem ratio compared with the period of 28 days. At 28days, palisade grass showed better nutritional quality. The grazing time was not different betweentreatments. Longer times of rumination, movement and idleness were registered at 43 days. Higherbite rate was observed at 28 days of regrowth, 32.00 (bites/minute), compared with 43 days, 24.88(bites/minute). At 43 regrowth days, we observed a deeper bite 43.44 (cm). The behavior of animalsindicated that palisade grass pasture can be used between 28 and 43 regrowth days. A utilização de pastagens cultivadas para alimentação de caprinos no Meio-Norte tem a finalidade de reduzir a pressão de pastejo sobre a vegetação nativa e aumentar a capacidade de suporte dos sistemas de produção na região. Nesta pesquisa o objetivo foi avaliar o comportamento de caprinos em pastagem de Brachiaria brizantha cv. Marandu manejada sob lotação rotacionada com três dias de ocupação e 28 e 43 dias de descanso. Foram utilizados cabras da raça Anglonubiana no início da gestação. A cada 15 minutos registraram-se as seguintes atividades: pastejo, ócio, deslocamento e ruminação. As avaliações ocorreram entre 7 e 17 horas. Foram observados oito animais durante doze dias consecutivos para cada período de rebrotação do pasto. O comportamento ingestivo foi avaliado através da taxa de bocados, determinada por meio da visualização de cada animal anotando-se o tempo gasto para realizar 20 bocados. A profundidade de bocados foi medida pela diferença entre o tamanho dos perfilhos antes e após a saída dos animais no primeiro dia de ocupação do pasto. O delineamento experimental foi inteiramente casualizado com dois tratamentos e oito repetições. Os tempos de pastejo foram 6,70 e 6,79 horas para 28 e 43 dias de rebrotação, respectivamente.Behavior of goats on palisade grass pasture under rotational stockingin two regrowth agesAbstractThis study evaluated the behavior of goats on pastures of Brachiaria brizantha cv. Marandu managedunder rotational stocking with three days of grazing and 28 and 43 days of rest. The experimentaldesign was completely randomized with two treatments and eight replications. Early pregnantAnglo-Nubian goats were used as test and control animals. The activities of grazing, idleness,movement and rumination were recorded every 15 minutes. Feeding behavior was evaluated bythe rate and depth of bites. The 43 day-rest period resulted in increased height and total productionof dry matter and leaves and lower leaf/stem ratio compared with the period of 28 days. At 28days, palisade grass showed better nutritional quality. The grazing time was not different betweentreatments. Longer times of rumination, movement and idleness were registered at 43 days. Higherbite rate was observed at 28 days of regrowth, 32.00 (bites/minute), compared with 43 days, 24.88(bites/minute). At 43 regrowth days, we observed a deeper bite 43.44 (cm). The behavior of animalsindicated that palisade grass pasture can be used between 28 and 43 regrowth days.
URI :	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77614
Otros identificadores :	https://comunicatascientiae.com.br/comunicata/article/view/304 10.14295/cs.v4i3.304
Aparece en las colecciones:	Núcleo de Pesquisa sobre Crianças, Adolescestes e Jovens - Universidade Federal do Piauí - NUPEC/UFPI - Cosecha

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