Grazing Days
Mostrando 1-12 de 130 artigos, teses e dissertações.
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1. Potential and restrictions of Poincianella pyramidalis (Tul.) L. P. Queiroz as native forage in the Brazilian semi-arid region
ABSTRACT. Poincianella pyramidalis (catingueira) is a endemic plant of the Caatinga, selected by animals grazing on native pasture. With the aim of evaluating characteristics indicative of its nutritional quality, 10 plants were selected and identified, sampled at five different ages, were used to determine dry matter (DM), crude protein (CP), neutral deterg
Acta Sci., Anim. Sci.. Publicado em: 24/10/2020
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2. Deposition and decomposition of litter in periods of grazing and rest of a tropical pasture under rotational grazing
RESUMO: Os objetivos deste estudo foram determinar taxas de deposição e decomposição de serapilheira em pastagens de Marandu (Urochloa brizantha cv. Marandu) sob a) três formas de suprimento de nitrogênio (N), b) em diferentes estágios de pastejo rotativo e c) comparar a constante de decomposição (‘k’) derivada de “litterbags” com os valore
Cienc. Rural. Publicado em: 02/12/2019
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3. Milk fatty acid composition of unsupplemented dairy cows grazing on a tropical pasture
ABSTRACT This study aimed to evaluate the milk fatty acid (FA) composition of unsupplemented dairy cows grazing on elephantgrass (Pennisetum purpureum Schum. cv. Pioneiro) pastures under three grazing management strategies: pre-grazing height of 120 cm with defoliation intensities of 50 and 70% of the initial height (treatments 120/50 and 120/70) and pre-gra
R. Bras. Zootec.. Publicado em: 28/10/2019
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4. Apparent selectivity of sheep in deferred marandu palisadegrass pastures with variable initial heights
RESUMO Objetivou-se avaliar a seletividade aparente de ovinos em pastos de capim-marandu (Urochloa brizantha cv. Marandu) com quatro alturas no início do diferimento (15, 25, 35 e 45cm). O período de diferimento foi de 92 dias e iniciou em 21/03/2014. As avaliações ocorreram no início (primeira semana), meio (45° dia) e fim (92° dia) do período de pa
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
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5. Hypomagnesemia in dairy cattle in Uruguay
RESUMO: Descreve-se um surto de hipomagnesemia em bovinos leiteiros da raça Holandês com alimentação a base de pastagens de aveia (Avena sativa) em crescimento no Uruguai, nos meses de maio a julho (outono-inverno) de 2017. De um rebanho de 270 vacas em ordenha, nove (3,3%) morreram. As nove vacas tinham entre dois e nove anos, estavam entre a primeira e
Pesq. Vet. Bras.. Publicado em: 14/10/2019
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6. Variation in available shaded area changes behaviour parameters in grazing dairy cows during the warm season
ABSTRACT The objective was to investigate the effects of available shaded area on behavioural characteristics of lactating cows during the warm season in the subtropics. Twelve Holstein cows were divided into groups, with 2 (SH2) or 10 m2 (SH10) of available shade per cow (six cows per treatment). The behaviour was recorded when animals were grazing from 09.
R. Bras. Zootec.. Publicado em: 12/09/2019
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7. Dry matter intake and milk yield of cows grazing Xaraés palisadegrass under different management strategies
ABSTRACT. This study aimed to evaluate the intake and milk yield of crossbred cows (Holstein x Zebu), under two management strategies, based on 95% light interception and fixed days. Eight lactating cows with body weight of 466 kg (± 35 kg) and lactation stage of 137 days (± 107 days) were used, four animals were assigned to each treatment. Dry matter inta
Acta Sci., Anim. Sci.. Publicado em: 04/07/2019
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8. Thermal comfort and grazing behavior of Girolando heifers in integrated crop-livestock (ICL) and crop-livestock-forest (ICLF) systems
ABSTRACT. To compare the integrated crop-livestock-forest (ICLF) and crop-livestock (ICL) systems in relation to thermal comfort and grazing behavior of Girolando heifers, a 2 × 2 crossover trial (two system and two periods) was carried out with eight – Holstein × ¼ Gyr heifers in Xaraés-palisade grass pasture under intermittent stocking with 10 days o
Acta Sci., Anim. Sci.. Publicado em: 04/07/2019
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9. Emissions of Nitrous Oxide and Methane in a Subtropical Ferralsol Subjected to Nitrogen Fertilization and Sheep Grazing in Integrated Crop-Livestock System
ABSTRACT Brazilian agriculture contributes significantly to nitrous oxide (N2O) and methane (CH4) emissions, so the understanding of such emissions at the field is crucial for mitigation strategies. This study quantified the impact of N application and sheep grazing on the N2O and CH4 emissions from a subtropical Ferralsol under an integrated crop-livestock
Rev. Bras. Ciênc. Solo. Publicado em: 19/06/2019
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10. Corn silage supplementation for dairy cows grazing annual ryegrass at two pasture allowances
RESUMO O objetivo deste estudo foi comparar os efeitos de dois níveis de suplementação (0 e 4kg de matéria seca [MS]/dia de uma mistura de silagem de milho e farelo de soja na razão de 7:1) para vacas leiteiras em pastos de azevém anual (Lolium multiflorum Lam.) manejados em faixas diárias com duas ofertas (OF, baixa= 25 e alta= 40kg de MS/dia medidas
Arq. Bras. Med. Vet. Zootec.. Publicado em: 14/06/2019
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11. Performance of crossbred lactating cows at grazing in response to nitrogen supplementation and different levels of concentrate feed
RESUMO Foi avaliado o desempenho de vacas mestiças (1/2 Holandês x Zebu) suplementadas em pastagens de Brachiaria decumbens durante o período de transição águas-seca. Oito vacas com 497±50kg, durante a terceira e a quarta lactação e após o pico de produção, foram distribuídas em dois quadrados latinos 4 x 4. Os tratamentos consistiram de um fato
Arq. Bras. Med. Vet. Zootec.. Publicado em: 14/06/2019
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12. Performance and grazing behavior of growing goats supplemented with palm tree fruit
ABSTRACT This study aimed to evaluate the performance and ingestive behavior of growing goats grazing on Tanzania guinea grass and fed diets containing 40% carnauba or tucum fruits. Twenty-one male castrated goats were distributed into three groups, one exclusively on pasture and the other two on pasture and fed diet supplemented at the level of 1.5% body we
R. Bras. Zootec.. Publicado em: 13/05/2019