Ranking contrasting genotypes of forage peanut based on nutritive value and fermentation kinetics

Ferreira, Alexandre Lima; Maurício, Rogério Martins; Fernandes, F. D.; Carvalho, Marcelo Ayres; Ramos, A. K. B.; Guimaraes, R.

doi:10.1016/j.anifeedsci.2012.03.024

Cited by 11 publications

(19 citation statements)

References 11 publications

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“…Colonization times (λ) ranged from 4.40 h for G2 to 5.46 h for G3. [6] fitted model LB to ten genotypes of Arachis pintoi and found similar λ values as those obtained in the present study at 4.4 to 5.5 h. Lower values were found by [7] for the Arachis pintoi cultivars assessed, from 2.8 to 4.3 h. Considering all genotypes, estimates and for model LB were higher and lower, 1 2 respectively, than estimates and for model VGB. The final gas volume W(t) is produced by 1 2 the rapid-and slow-digestion fractions, i.e., the sum of NCF and FC.…”

Section: Resultssupporting

confidence: 87%

“…Those authors reported values of 0.095 (0.04), 0.108 (0.04), 0.131 (0.04), 0.203 (0.04), 0.216 (0.04), and 0.222 (0.04) for silages of corn, alfalfa hay, sorghum, sugar cane, Coastcross hay, and Tifton-85, grass, respectively. The estimated degradation rates k 1 and k 2 by model LB were similar to those found by [6,7] for pinto peanut genotypes. Another relevant piece of information is that for the models fitted considering all genotypes (Table 3).…”

Section: Resultssupporting

confidence: 79%

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Method to generate growth and degrowth models obtained from combinations of existing models applied to agrarian sciences

Santos

Moreira

Gomes-Silva

et al. 2019

Preprint

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Mathematical models that describe gas production are widely used to estimate the rumen degradation digestibility and kinetics. The present study presents a method to generate models by combining existing models and to propose the von Bertalanffy-Gompertz two-compartment model based on this method. The proposed model was compared with the logistic twocompartment one to indicate which best describes the kinetic curve of gas production through the semi-automated in vitro technique from different pinto peanut cultivars. The data came from an experiment grown and harvested at the Far South Animal Sciences station (Essul) in Itabela, BA, Brazil and gas production was read at 2, and 96 h after the start of the in vitro fermentation process. The parameters were estimated by the least squares method using the iterative Gauss-Newton process in the software R version 3.4.1. The best model to describe gas accumulation was based on the adjusted coefficient of determination, residual mean squares, mean absolute deviation, Akaike information criterion, and Bayesian information criterion. The von Bertalanffy-Gompertz two-compartment model had the best fit to describe the cumulative gas production over time according to the methodology and conditions of the present study.

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Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 79%

Method to generate growth and degrowth models obtained from combinations of existing models applied to agrarian sciences

Santos

Moreira

Gomes-Silva

et al. 2019

Preprint

Self Cite

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show abstract

“…In sub-tropical and warm-temperate latitudes, a wide range of persistent warm-season perennial grasses commonly occurs as near-monoculture grass pastures or as naturally occurring, mixed-species, grass-dominated rangeland. Forage legumes are often introduced into ruminant systems in order to reduce production costs regarding biological nitrogen fixation (N) and to add nutritional value to the diet (Ferreira et al ., 2012; Foster et al ., 2014; Mangaravite et al ., 2014). Although organic N in soil is partially mineralized by microbial activity, its quantity is not enough to significantly increase pasture quality and availability to enhance animal production.…”

Section: Introductionmentioning

confidence: 99%

Partial replacement of nitrogen fertilization with legumes in tropical pasture overseeded with temperate species for the production of steers

et al. 2019

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Using legumes in forage mixes can help decrease the use of nitrogen fertilizers and possibly increase the nutritive value of pasture. The aim of the current study was to determine animal production and behavioural and ingestion parameters by evaluating the production and nutritive value of Aruana grass (Panicum maximum ‘Aruana’) intercropped with forage peanut (Arachis pintoi ‘Amarillo’) or fertilized with nitrogen. The treatments were N200 (200 kg N/ha per season – summer and winter), 100N + PE (100 kg N/ha per season plus pasture mixture with forage peanut) and N100 (100 kg N/ha per season). The presence of forage peanut in the pasture did not replace nitrogen fertilization as the pasture fertilized with 200 kg of nitrogen had a greater leaf/stem ratio (0.66 v. 0.54), stocking rate (2600 v. 2290 kg live weight/ha), average daily gain (0.880 v. 0.700 kg/day) and live weight gain (LWG) (652 v. 468 kg/ha) during summer. During winter, no effect of increased nitrogen fertilization on pasture and animal production was observed. In the total study period (summer + winter), a greater LWG (897 v. 741 kg/ha) occurred when a higher quantity of nitrogen (N200) was placed in the pasture compared to the insertion of forage peanuts in the system.

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“…Arachis pintoi puede ser administrada como forraje fresco, heno o ensilado (Ferreira et al, 2012b). Andrade et al (2016) sostienen que su uso es viable y sostenible en los diversos sistemas de producción animal del trópico.…”

Section: Introductionunclassified

Uso de la harina de maní forrajero (Arachis pintoi Krapov & WC Greg) en la alimentación de cuyes (Cavia porcellus L)

Sotelo

Contreras

Norabuena

et al. 2018

Rev. investig. vet. Perú

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El objetivo del presente estudio fue evaluar el efecto del uso de harina de maní forrajero Arachis pintoi en cuyes en etapa de crecimiento. La duración experimental fue de 49 días, empleándose 64 cuyes machos destetados, dispuestos en un diseño de bloques completamente al azar con cuatro tratamientos (0, 5, 10, 15% de niveles de inclusión de harina de A. pintoi), con cuatro repeticiones y cuatro cuyes por repetición. Los resultados indican que no hubo diferencia significativa entre los niveles de A. pintoi para ganancia de peso, consumo de alimento, conversión alimenticia, rendimiento de carcasa y retribución económica.

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Ranking contrasting genotypes of forage peanut based on nutritive value and fermentation kinetics

Cited by 11 publications

References 11 publications

Method to generate growth and degrowth models obtained from combinations of existing models applied to agrarian sciences

Method to generate growth and degrowth models obtained from combinations of existing models applied to agrarian sciences

Partial replacement of nitrogen fertilization with legumes in tropical pasture overseeded with temperate species for the production of steers

Uso de la harina de maní forrajero (Arachis pintoi Krapov & WC Greg) en la alimentación de cuyes (Cavia porcellus L)

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