Nutritional value of forage species from the Central Highlands Region of Mexico at different stages of maturity

Amor, Adolfo Armando Rayas; Estrada-Flores, Julieta Gertrudis; Mould, F.L.; Ortega, Octavio Alonso Castelán

doi:10.1590/s0103-84782012000400022

Cited by 9 publications

(8 citation statements)

References 8 publications

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“…The high structural carbohydrates (NDF and ADF) and low crude protein (4.92 to 8.42% DM) found in Poaceae species is comparable to data on cultivated forage in semiarid areas [ 26 ], and the maturity stage at harvest of our samples can explain these results [ 59 ]. The poor soil conditions [ 60 ] in these coastal areas of Benin, where sandy soils of low-fertility levels are dominant [ 61 ], could also explain the low-protein content in the studied forage.…”

Section: Discussionsupporting

confidence: 86%

Nutritional Value of Climate-Resilient Forage Species Sustaining Peri-Urban Dairy Cow Production in the Coastal Grasslands of Benin (West Africa)

Koura

Vastolo

Kiatti

et al. 2022

Animals

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Along the coast of West Africa, grazing ruminants rely on perennial forage species remaining in uncultivated plots, roadsides, and marshlands during the dry season. To assess the quality of these forages, thirteen drought-tolerant plants were harvested at the mature stage, and the samples were evaluated for chemical composition, in vitro fermentation characteristics, and metabolizable energy (ME) content. They are ten drought-tolerant grasses, including: Andropogon virginicus, Brachiaria deflexa, Cenchorus biflorus, Dactyloctenium aegyptium, Eragrostis tremula, Leptochloa caerulescens, Loudetia aroundinacea, Paspalum notatum, Paspalum vaginatum, Pennisetum purpureum, two perennial herbs, Chamaecrista rotundifolia, Zornia latifolia, and one multipurpose tree, Elaeis guineensis. Legume species had the highest nutritional value (highest crude protein and ME, and lowest neutral detergent fiber) of the species studied. In terms of the in vitro data, the gas produced after 120 h of incubation ranged from 149 mL/g in E. tremula to 185 mL/g in Paspalum. Z. latifoliaa and had the fastest rate of fermentation, producing half of the total gas in 19.5 h, whereas E. tremula required 49.9 h (p < 0.01). The production of branched-chain fatty acids (isobutyrate and isovalerate) was greatest for E. guineensis and the lowest in both Paspalum species (p < 0.01). The study suggests the need for the protein supplementation of the animals to ensure maximum forage utilization and to satisfy the nutrient requirements of ruminant livestock.

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Section: Discussionsupporting

confidence: 86%

Nutritional Value of Climate-Resilient Forage Species Sustaining Peri-Urban Dairy Cow Production in the Coastal Grasslands of Benin (West Africa)

Koura

Vastolo

Kiatti

et al. 2022

Animals

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“…Two different forage diets were used in the simulation exercise, the first one is a mixed forage diet composed of Pennisetum clandestinum (kikuyu grass), Sporobolus indicus (mouse tail grass), Eleocharis dombeyana (reed), Trifolium amabile (Aztec clover), which are widespread forage vegetation in the temperate regions of Mexico (Rayas et al, 2012). The second forage diet is based on Cynodon spp.…”

Section: Dietsmentioning

confidence: 99%

Modeling methane emissions and methane inventories for cattle production systems in Mexico

Castelán-Ortega¹,

Kú-Vera²,

Estrada-Flores³

2014

Atmósfera

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RESUMENLa fermentación anaeróbica de los carbohidratos estructurales en el rumen de los bovinos genera productos de desecho como ácidos grasos volátiles, calor de fermentación, bióxido de carbono y gas metano. Este último es un gas de invernadero que tiene un potencial varias veces mayor que el CO 2 para inducir calentamiento global. El objeto del presente trabajo es aportar una estimación del inventario nacional de metano producido por la fermentación entérica del ganado bovino en México, realizado a partir del uso de un modelo matemático de simulación. Se hizo una clara diferenciación entre el CH 4 producido por bovinos que consumen una dieta típica de las regiones tropicales y aquellos que se alimentan con ingredientes de las regiones templadas de México. Se estimó que la emisión total de metano producido por las 23.3 millones de cabezas de bovinos de México asciende a aproximadamente 2.02 Tg/año. Se concluyó que el modelo desarrollado fue apropiado para producir una mejor estimación del inventario nacional de metano producido por el ganado bovino, ya que es lo suficientemente flexible para incorporar nuevos grupos de ganado o esquemas de clasificación, niveles de productividad y una gran variedad de alimentos para el ganado. El modelo también puede utilizarse para evaluar diferentes escenarios de mitigación y servir como herramienta para diseñar políticas de mitigación. ABSTRACTAnaerobic fermentation of structural carbohydrates in the rumen of bovines produces waste products such as volatile fatty acids, fermentation heat, carbon dioxide and methane gas. Methane is a greenhouse gas having several times the global warming potential of CO 2 . The purpose of the present paper is to provide a realistic estimate of the national inventory of methane produced by the enteric fermentation of cattle, based on a simulation model and to provide estimates of CH 4 produced by cattle fed typical diets from the tropical and temperate climates of Mexico. Predicted total emission of methane produced by the 23.3 million heads of cattle in Mexico is approximately 2.02 Tg/yr. It was concluded that the modeling approach was suitable in producing a better estimate of the national methane inventory for cattle. It is flexible enough to incorporate more cattle groups or classification schemes, productivity levels and a variety feed ingredients for cattle. The model could also be used to evaluate different mitigation strategies and serve as a tool to design mitigation policies.

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“…Los sistemas a pequeña escala tienen diversas estrategias de alimentación para sus hatos, entre los cuales se encuentra el pastoreo de pastizales nativos principalmente durante la época de lluvias, uso de praderas cultivadas para corte o pastoreo cuando hay disponibilidad de riego, además el uso de pajas y rastrojos; y más recientemente de ensilado de maíz y otros forrajes. Además, grandes cantidades de alimentos concentrados balanceados comerciales e ingredientes concentrados como el salvado de maíz (conocido como masilla), cascarilla de soya y otros (Cuevas Reyes et al, 2007;Alfonso-Ávila et al, 2012;Rayas-Amor et al, 2012;Martínez-García et al, 2015).…”

Section: Introductionunclassified

Evaluación De Un Concentrado De Pasta De Canola Y Mazorca De Maíz Para Vacas Lecheras en Pastoreo De Pastizales Nativos en Los Valles Altos De México

Miranda

García

Uribe

et al. 2020

Trop Subtrop Agroecosyst

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Background. Native grasslands are a resource utilized for livestock feeding due to their low cost and mainly during the rainy season. However, native grasslands do not meet the nutritional requirements of dairy cows. Consequently, commercial supplementation with a high cost is used. Objective. The objective of this study was to evaluate the effect of a supplement mixture of canola and ground corn ears compared to a commercial concentrate during the rainy season. Methodology. Ten cows on continuous grazing for 9 h/d were used following the management of the participating farm in a double cross-over experimental design for animal variables, and a split plot design for the grassland evaluation. Results. There were no significant differences (P>0.05) for animal variables, with mean milk yields of 13.5 kg/cow/day, 35.7 g/kg for milk fat, and 32.0 g/kg for protein content. There were also no differences (P>0.05) for grassland height and herbage mass, nor for chemical composition, with crude protein content of 100.4 g/kg DM, and 526 g/kg DM of in vitro digestibility. Chemical composition of concentrates was similar, but the experimental concentrate had lower cost. Implications. Given the scenario of rising prices of concentrates, an alternative to the producer is preparing its own concentrate, with corn harvested in the production units and some ingredient that is high in crude protein. Conclusions. It is concluded that the experimental concentrate made on farm resulted in the same performance as a commercial concentrate, which may reduce feeding costs.

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Nutritional value of forage species from the Central Highlands Region of Mexico at different stages of maturity

Cited by 9 publications

References 8 publications

Nutritional Value of Climate-Resilient Forage Species Sustaining Peri-Urban Dairy Cow Production in the Coastal Grasslands of Benin (West Africa)

Nutritional Value of Climate-Resilient Forage Species Sustaining Peri-Urban Dairy Cow Production in the Coastal Grasslands of Benin (West Africa)

Modeling methane emissions and methane inventories for cattle production systems in Mexico

Evaluación De Un Concentrado De Pasta De Canola Y Mazorca De Maíz Para Vacas Lecheras en Pastoreo De Pastizales Nativos en Los Valles Altos De México

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