VALOR NUTRITIVO DE UMA PASTAGEM NATIVA DOMINADA POR Eragrostis plana Nees E SUA RELAÇÃO COM O PERFIL METABÓLICO DE VACAS PRIMÍPARAS SUPLEMENTADAS DA GESTAÇÃO AO PÓS-PARTO

Pellegrini, Caius Barcellos de; Medeiros, Renato Borges de; Carlotto, Silvane Barcelos; Garcia, Renata Porto Alegre; Lisboa, Celso Vargas; Brüning, Gilmar

doi:10.1590/1089-6891v17i216953

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…The NDF content decreased linearly during the study by 1.03 kg per day, which can be justified by the increase in legumes ( Table 3). The average NDF observed during the period was 755.65 g/kg of DM, which was higher than the 663 g/kg of DM found by Pellegrini et al (2016). When the NDF values are greater than 550-600 g/kg, consumption decreases due to the filling effect (Mertens, 2003).…”

Section: Resultsmentioning

confidence: 66%

Mineral, Protein, and Energy Supplementation in Heifers in a Native Pampa Biome Pasture During Winter

Malaguez

Gonçalves

Giudice

et al. 2020

Rev. Agric. Neotrop.

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This study evaluated the effect of different supplements during winter on the performance of heifers in a native Pampa biome field using deferred grazing and evaluated the economic viability of each treatment. A total of 124 heifers from Brangus and Angus breeds, 18 months old, and with an average weight of 301.6 kg were included in this experiment. The treatments applied were: control with only native grassland, native grassland + 80P mineral salt treatment (MS), native grassland + protein salt treatment (PS), and native grassland + protein/energy salt treatment (PES). Besides the productive, botanical, and bromatological characteristics of the pasture, the average daily gain and the live weight gain per hectare were evaluated. The economic viability of the treatments was evaluated through partial budgeting. Weight loss was observed in all treatments. However, only the PES treatment differed from the others, with an average daily gain of -0.046 kg dia-1 (p value 0.005). The MS treatment was the best regarding economic viability. Despite that, the smallest weight loss was observed in the PES treatment, which may be a determinant in the development and future performance of heifers. Despite the small net margin, this treatment did not incur additional costs to the system.

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Section: Resultsmentioning

confidence: 66%

Mineral, Protein, and Energy Supplementation in Heifers in a Native Pampa Biome Pasture During Winter

Malaguez

Gonçalves

Giudice

et al. 2020

Rev. Agric. Neotrop.

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“…The increase in DM and OM as well as the variation in their proportion in diets selected by ewes (Table 4) resulted from physiological processes in plants over time. Primary among these were physiological progression from vegetative to reproductive to senescent stages with accompanying conversion of soluble compounds into less digestible structural components (Pellegrini et al, 2016).…”

Section: Chemical Composition Of Selected Dietmentioning

confidence: 99%

Effect of concentrate supplement to ewes on nutritive value of ingested Caatinga native forage nutritive value as affected by season

Carvalho

Alves

Pompeu

et al. 2021

Trop Anim Health Prod

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The objective of this study was to identify by microhistological technique the reference chemical components for use as indicators of the nutritive value of Caatinga plants forage grazed by sheep throughout the year. A flock of twenty mixed-race meat ewes, multiparous, in production, with an average 34.84 ± 1.75 kg live weight and 36 months of age was assigned to supplement treatment of 0, 200, 350, and 500 g concentrate/head/day for 3 years. The experiment was designed as a randomized complete design with repeated measures over time. Supplementation with concentrate did not influence chemical composition of selected forage. In contrast, season heavily influenced diet chemical composition. Canopy stratum, season, and plant botanical family of selected species affected forage chemical composition selected by ewes. The ewes selected forage with greater nutritive value during the rainy season. Based on principal component analysis of the nutritive value of the primary forage species selected, ewes preferentially grazed plants contained greater neutral detergent fiber, acid detergent fiber, crude protein (CP), C fraction of nitrogenous compounds, and carbohydrate fractions A + B1 and C compared to the average native Caatinga herbage. Rangeland botanical composition and ewe diet varied during the year, affecting forage nutrients on offer, with the best diet selected during the rainy season because of the presence of dicotyledonous herbaceous species rich in CP as well as soluble carbohydrates and nitrogenous compounds. Concentrate supplement strategies for ewes on rangelands, such as Caatinga, should be determined by herbaceous species nutritive value during the rainy season and deep-rooted perennial dicotyledons during the dry season. These include the need to monitor ewe selection of forage species and their nutritive value, which is effectively accomplished with fecal microhistological techniques.

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“…Trazida acidentalmente da África no ano de 1950, logo "caiu no gosto dos pecuaristas" devido alta rusticidade e grande desenvolvimento de massa seca (FERREIRA et al, 2008). Porém, estudos posteriores constataram problemas relacionados ao baixo valor nutricional da espécie com menos de 6% de proteína (PELLEGRINI et al, 2016), dificuldade de pastejo com desgaste prematuro dos dentes Brazilian Journal of Development, Curitiba, v.7, n.11, p. 103645-103654 nov. 2021 dos animais devido alto teor de fibras nas folhas e colmos, além do difícil controle (GOULART et al, 2009).…”

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Avaliação da germinação de sementes de capim-annoni em Latossolos de diferentes granulometrias e níveis de compactação / Germination evaluation of love grass seeds in Oxisols of different granulometry and compaction levels

Mota¹,

Sequinatto²,

Sbrissia³

et al. 2021

BJDV

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RESUMOO capim-annoni (Eragrostis plana Nees) é uma planta capaz de se desenvolver em solos pobres, erodidos e degradados, o que favoreceu seu estabelecimento em diversas regiões dos biomas Pampa e Mata Atlântica na região Sul do Brasil. O crescimento desta planta ocorre inclusive em locais de solo compactado como, por exemplo, em beiras de estradas. Porém, não se tem informações da adaptação desta planta a condições adversas e/ou extremas. O objetivo deste trabalho foi avaliar a germinação do capim-annoni em solos de diferentes granulometrias submetidos à compactação. Foram conduzidos testes de germinação em Latossolos derivados de basalto (573 g kg -1 de argila e 215 g kg -1 de areia), arenito (202 g kg -1 de argila e 699 g kg -1 de areia) e arenito e basalto (306 g kg -1 de argila e 522 g kg -1 de areia), os quais foram compactados a 100%, 85% e 70% da densidade máxima. Os resultados demostraram que a germinação do capim-annoni foi menor em solos mais argilosos e a compactação dos diferentes solos não influenciou a germinação. Conclui-se que perdas na qualidade de solo, pouco influenciam no estabelecimento e desenvolvimento do capim-annoni tornando-o um problema ainda maior devido ao aumento progressivo das áreas degradadas.

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VALOR NUTRITIVO DE UMA PASTAGEM NATIVA DOMINADA POR Eragrostis plana Nees E SUA RELAÇÃO COM O PERFIL METABÓLICO DE VACAS PRIMÍPARAS SUPLEMENTADAS DA GESTAÇÃO AO PÓS-PARTO

Cited by 7 publications

References 20 publications

Mineral, Protein, and Energy Supplementation in Heifers in a Native Pampa Biome Pasture During Winter

Mineral, Protein, and Energy Supplementation in Heifers in a Native Pampa Biome Pasture During Winter

Effect of concentrate supplement to ewes on nutritive value of ingested Caatinga native forage nutritive value as affected by season

Avaliação da germinação de sementes de capim-annoni em Latossolos de diferentes granulometrias e níveis de compactação / Germination evaluation of love grass seeds in Oxisols of different granulometry and compaction levels

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