Efeito da dose de uréia e período de tratamento sobre a composição do feno de paspalum notatum

Pádua, F.T.; Almeida, João Carlos de Carvalho; Nepomuceno, Delci de Deus; Neto, Otavio Cabral; Deminicis, Bruno Borges

doi:10.4321/s0004-05922011000100007

Cited by 5 publications

(4 citation statements)

References 12 publications

(10 reference statements)

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“…Adding urea to roughage feeds increases protein content, improves roughage digestibility through changes in the fibrous fractions, and reduces losses associated with the fermentation process in silages [92]. Pádua et al [93], evaluating the effects of urea doses on potato grass hay (Paspalum Notatum), observed that the CP content increased with increasing levels of urea used in the study. Similarly, Sousa et al [44], evaluating the chemical composition of corn straw ammoniated with urea added at 0, 2, 4, 6, and 8% of total DM, observed an increase in CP content with the inclusion of doses of urea with values ranging from 5.36 to 11.2 (%DM).…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Additives on the Quality of Rehydrated Corn Grain Silage: A Systematic Review

Diogénes,

Pereira Filho,

Edvan

et al. 2023

Ruminants

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This review aimed to analyze the effects of additives in producing silage from rehydrated corn grains for ruminants. The control treatment studies used in this analysis involved corn grain rehydrated with water only. To be included in the review, the studies needed to follow standardized criteria, including the absence of additives in the control treatment and the silage evaluation of the in animals such as cattle, goats, and sheep. A total of fifteen publications between 2014 and 2023 were included in the final dataset. The PROC ANOVA of SAS was used to compare the results, which included a random effect of comparison within the study, performing a paired comparison. It was observed that additives did not influence the chemical composition, pH, organic acid, ethanol content, microbial population, fermentative losses, aerobic stability, and dry matter in vitro digestibility of rehydrated corn grain silage (p > 0.05). Using additives in corn silage is a promising practice that can significantly benefit silage fermentation. Moisture silage additives mitigate high mycotoxin levels, enhance aerobic stability, improve cell wall digestibility, and increase the efficiency of utilization of silage nitrogen by ruminants. Using fermentation-stimulating additives (Lactobacillus buchneri) can improve the quality of rehydrated corn grain silage. There are still a few studies and more research to elucidate the best additives and the ideal amount to be added to ground corn grain silage.

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Section: Discussionmentioning

confidence: 99%

Effect of Different Additives on the Quality of Rehydrated Corn Grain Silage: A Systematic Review

Diogénes,

Pereira Filho,

Edvan

et al. 2023

Ruminants

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“…Ferreira and Zanine (2013) ammoniated Tanzania grass hay with 1.5, 2.5 and 3.5% of urea based on DM, and no alteration in ether extract and ash content was observed in comparison to the control treatment. Pádua et al (2011) treated Paspalum notatum hay with 0. 0.5, 1, 1.5, 2, 2.5% urea for 21, 28 and 35 days of treatment period, and did not observe a significant difference (p> 0.05) between the control and the urea doses and treatment periods.…”

Section: Discussionmentioning

confidence: 99%

Nutritive value of elephant grass hay ammoniated by urea

Morais

Almeida²,

Nepomuceno³

et al. 2020

Biosci. J.

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The aim of this study was to evaluate the effect of ammoniation by urea on the nutritional value of elephant grass hay harvested after flowering. A completely randomized design, in double factorial designs with an additional treatment: 4 urea doses (2, 4, 6 and 8%) x 2 treatment periods (30 and 45 days) + 1 (Control) with four replicates each, was employed. Dry matter, ash, ether extract, neutral detergent fiber, acid detergent fiber, cellulose, lignin, neutral detergent fiber corrected for the ash and the protein, total nitrogen, acid detergent insoluble nitrogen, neutral detergent insoluble nitrogen, non-protein nitrogen, in vitro gas production and carbohydrates fractionation were analyzed. The treatments influenced the contents of DM, EE, NDF, ADF, lignin, cellulose, NDFap, fraction A + B1, fraction B2, fraction C, TN, NPN, ADIN, NDIN, L and Vf2. There was a positive linear effect of urea dose for NDF, ADIN, NDIN and L, positive linear effect on fraction A + B1, NT and NPN, and positive quadratic effect for Vf2, with absolute maximum point of 4.5%. Elephant grass hay harvested after flowering has its nutritional value improved, with a minimum dose of 4.5% urea on a dry matter basis.

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“…The application of urea does not provide decreased in respect losses of dry matter, except at a level of 1.0%, however it is efficient in to reduce the population of molds and yeasts and elevate the crude protein of buffel grass hay. (PADUA et al, 2011). Gobbi et al (2005), avaliando a composição química do feno de Brachiaria decumbens tratada com ureia, observaram uma redução nos teores de fibra em detergente neutro e ácido e lignina com o aumento do nível de ureia utilizado.…”

Section: Discussionunclassified