Objetivou-se com esta pesquisa avaliar três sistemas forrageiros constituídos por Coastcross-1 (CC) + 100kg de N ha-1 ano-1 + ervilhaca comum; CC + 100kg de N ha-1 ano-1 + trevo vesiculoso; e CC + 200kg de N ha-1 ano-1. Durante o período experimental (345 dias), foram realizados treze pastejos. Para avaliação, foram utilizadas vacas em lactação da raça Holandesa. Foram avaliadas a massa de forragem, composição botânica, relação folha/colmo; taxa de acúmulo diário, produção e consumo de forragem; eficiência de pastejo e taxa de lotação. Os valores médios de produção de forragem e lotação foram de 21,0; 20,3 e 24,3t ha-1; 7,0; 6,5 e 7,7 unidades animais ha-1 dia-1, para os respectivos sistemas forrageiros. Melhores resultados foram obtidos no consórcio de CC com ervilhaca e no cultivo singular de CC
Most dairy production systems are pasture-based, usually consisting of sole grass species. This system facilitates pasture management, but results in high production costs, mainly because of nitrogen fertilizers. An alternative to making forage systems more sustainable is to introduce legumes into the pasture. Mixed pastures allow better forage distribution over time and reduce fertilization costs. Thus, the objective of this study was to evaluate, throughout the year, three forage systems (FS): FS1 (control) - elephant grass (EG), ryegrass (RG), and spontaneous species (SS); FS2 - EG + RG + SS + arrowleaf clover; and FS3 - EG + RG + SS + forage peanut. Elephant grass was planted in rows spaced 4 m apart. Ryegrass was sown between the EG lines, in the winter. Arrowleaf clover was sown according to the respective treatments and forage peanut was preserved. Evaluation was carried out using Holstein cows. The experiment was arranged in a completely randomized design, with three treatments (FS), and three repetitions (paddocks) with repeated measurements (grazing cycles). Forage mass achieved 3.46, 3.80, and 3.91 t ha-1 for the treatments FS1, FS2 and FS3, respectively. The forage systems intercropped with legumes produced the best results.
Three grazing systems with Coastcross-1 bermuda grass (CC) + 100 kg N ha-1 year-1 + common vetch; CC + 100 kg N ha-1 year-1 + arrowleaf clover; and CC + 200 kg N ha-1 year-1 were evaluated. Thirteen grazing cycles were performed during the experimental period (313 days), with two, five, four and two cycles respectively in winter, spring, summer and fall. Lactating Holstein cows were used in the evaluation. Daily accumulation rate, forage production, rate of forage disappearance, agronomic intake, grazing efficiency, herbage allowance and stocking rate were evaluated. Mean rates of forage yield and stocking rate were 20.8; 17.6 and 19.7 t DM ha-1 and 7.0; 6.8 to 6.8 animal units ha-1 day-1 for the respective forage systems. The mixture Coastcross-1 plus common vetch, fertilized with 100 kg N ha-1 year-1 and Coastcross-1 fertilized with 200 kg N ha-1 year-1 provided greater productivity and better distribution of forage throughout the seasons.
Forage mass, botanical composition and stocking density of bermudagrass overseeded with forage legumes 1 Pastures of the genus Cynodon are being cultivated alone in conventional production with high rates of nitrogen fertilizer. Information and research about its use on mixed-pasture system is scarce. The objective of this study was to evaluate three grazing systems with coastcross-1 (CC) + 100 kg N ha . The experiment was carried out from May 2013 to April 2014. The sward height, forage mass, botanical composition, leaf:stem ratio, and animal stocking density were evaluated. Experimental design was completely randomized with three treatments (grazing systems) and three replicates (paddocks) in completely split-plot time (grazing cycles). The average stocking rate was 7.0, 6.8, 6.8 cows ha -1 day -1 for the respective forage systems. Better results were found with coastcross-1 mixed with common vetch + 100 kg N ha -1 year -1 in winter and spring and coastcross-1 alone + 200 kg N ha -1 year -1 in autumn.
Em habitat natural as pastagens sempre foram o alimento natural dos equinos, sendo compostas por diferentes espécies vegetais, escolhidas livremente pelos animais. Porém, com a criação de equinos estabulados, as práticas de manejo alimentar se modificaram tendo por base o oferecimento de grandes quantidades de concentrado, o que influencia diretamente no comportamento geral e alimentar dos equinos, aumentando os riscos de distúrbios metabólicos. Por este motivo, a priorização do uso de volumosos na dieta de equinos estabulados é indiscutível. O objetivo deste trabalho foi avaliar o manejo alimentar de cavalos estabulados em estabelecimentos equestres localizados em Florianópolis - Santa Catarina. Um questionário com questões abertas para descrição do manejo alimentar e fechadas pertinentes ao tipo de volumoso utilizado foi aplicado em 33 estabelecimentos equestres. Foi verificado que apenas 6% dos locais têm orientação profissional quanto ao manejo alimentar e 91% não sabem a quantidade de volumoso oferecida aos animais. Em 73% dos estabelecimentos, foi afirmando que havia uma diferenciação da quantidade de alimento oferecida aos animais, porém 40% dos entrevistados responderam que se baseavam em “nada” para fazer esta diferenciação. Tais resultados mostram inconsistência quanto ao manejo alimentar dos equinos estabulados em Florianopolis - Santa Catarina e que a provável causa disto seja a pouca orientação profissional aos responsáveis pelos animais. Novos estudos e ações de extensão ou prestação de serviço devem ser realizados para um melhor entendimento da real situação das práticas de manejo e suas consequências às quais os cavalos da Ilha de Santa Catarina estão submetidos.
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