Effects of mineral or protein-energy supplementation and genetic group on metabolism parameters of young beef bulls grazing tropical grass during the rainy season

Simioni, Tiago Adriano; Messana, Juliana Duarte; Silva, L.G.; Granja-Salcedo, Yury Tatiana; Torrecilhas, Juliana Akamine; Vito, Elias San; Lage, Josiane Fonseca; Reis, Ricardo Andrade; Berchielli, Telma Teresinha

doi:10.1016/j.livsci.2021.104805

Cited by 4 publications

(2 citation statements)

References 50 publications

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“…In the present study, the energy supplementation trend allows an additive effect on forage intake and consequently, increased the total DM intake and higher intake of OM, CP, apNDF, GE, digestible energy, and metabolizable energy. A similar additive effect was reported in young beef bulls grazing U. brizantha cv Xaraés with energy-protein supplementation at a similar rate than used in this study [47]. Due to the greater input of nitrogen from the energy supplements, there was also a greater excretion of urinary N and a trend toward greater excretion of N in the feces.…”

Section: Discussionsupporting

confidence: 84%

Effect of a Blend of Phytogenic Compounds Addition on Rumen Microbiota and Nitrogen Utilization Efficiency during the Supplementation of Grazing Nellore Cattle

Teobaldo¹,

Granja-Salcedo²,

Cardoso³

et al. 2023

Preprint

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The objective of this study was to evaluate the effect of the addition of a phytogenic compounds blend (PHA) containing hydrolyzable tannins, carvacrol and cinnamaldehyde oil in the mineral salt or energy supplement on the rumen microbiota and nitrogen metabolism of grazing Nellore cattle. Eight castrated Nellore steers were distributed in a double Latin square 4 × 4 design, with a 2 × 2 factorial arrangement (two type supplements and the addition or not of PHA) as follows: energy supplement without PHA addition (EW); energy supplement with PHA addition (EPHA); mineral supplement without the addition of PHA (MW); and mineral supplement with PHA addition (MPHA). Steers that received supplements with PHA have a lower ruminal proportion of Valerate (with PHA 1.06%; without PHA 1.15%), a lower ruminal abundance of Verrucomicrobia and a tendency for lower DM digestibility (with PHA 62.8%; without PHA 64.8%). Energy supplements allowed higher ammonia concentrations (+2.28 mg of NH3-N/dL), increased the propionate proportion (+0.29% of total VFA), and showed a tendency to have a higher abundance of Bacteroidetes and a lower abundance of Firmicutes in the rumen. The PHA addition in the supplement did not improve the use of nitrogen in grazing cattle, but negatively affected the diet digestibility.

show abstract

Section: Discussionsupporting

confidence: 84%

Effect of a Blend of Phytogenic Compounds Addition on Rumen Microbiota and Nitrogen Utilization Efficiency during the Supplementation of Grazing Nellore Cattle

Teobaldo¹,

Granja-Salcedo²,

Cardoso³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…In this study, the energy supplementation trend allowed an additive effect on forage intake, which consequently increased the total DM intake, as well as the intake of nutrients. A similar additive effect was observed in young beef bulls grazing U. brizantha cv Xaraés with energy–protein supplementation at a rate similar to that used in this study [ 45 ]. Due to the greater input of nitrogen from the energy supplements, there was also a greater excretion of urinary N and a trend toward the greater excretion of N in the feces.…”

Section: Discussionsupporting

confidence: 81%

The Impact of Mineral and Energy Supplementation and Phytogenic Compounds on Rumen Microbial Diversity and Nitrogen Utilization in Grazing Beef Cattle

et al. 2023

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The objective of this study was to evaluate the effect of the addition of a phytogenic compound blend (PHA) containing hydrolyzable tannins, carvacrol, and cinnamaldehyde oil to mineral salt or energy supplementation on the rumen microbiota and nitrogen metabolism of grazing Nellore cattle. Eight castrated Nellore steers were distributed in a double-Latin-square 4 × 4 design, with a 2 × 2 factorial arrangement (two types of supplements with or without the addition of the PHA), as follows: energy supplement without the PHA addition (EW); energy supplement with the PHA addition (EPHA); mineral supplement without the addition of the PHA (MW); mineral supplement with the PHA addition (MPHA). Steers that received supplements with the PHA have a lower ruminal proportion of valerate (with the PHA, 1.06%; without the PHA, 1.15%), a lower ruminal abundance of Verrucomicrobia, and a tendency for lower DM digestibility (with the PHA, 62.8%; without the PHA, 64.8%). Energy supplements allowed for higher ammonia concentrations (+2.28 mg of NH3-N/dL), increased the propionate proportion (+0.29% of total VFA), and had a higher ruminal abundance of Proteobacteria and Spirochaetae phyla in the rumen. The PHA addition in the supplement did not improve nitrogen retention, reduced the ruminal proportion of valerate, and had a negative impact on both the total dry-matter digestibility and the abundance of several ruminal bacterial groups belonging to the Firmicutes and Verrucomicrobia phyla.

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Feeding strategy during growing phase on the performance and carcass traits in beef bulls finished on the pasture

Vitor

Pedreira

Silva

et al. 2022

Trop Anim Health Prod

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Effects of mineral or protein-energy supplementation and genetic group on metabolism parameters of young beef bulls grazing tropical grass during the rainy season

Cited by 4 publications

References 50 publications

Effect of a Blend of Phytogenic Compounds Addition on Rumen Microbiota and Nitrogen Utilization Efficiency during the Supplementation of Grazing Nellore Cattle

Effect of a Blend of Phytogenic Compounds Addition on Rumen Microbiota and Nitrogen Utilization Efficiency during the Supplementation of Grazing Nellore Cattle

The Impact of Mineral and Energy Supplementation and Phytogenic Compounds on Rumen Microbial Diversity and Nitrogen Utilization in Grazing Beef Cattle

Feeding strategy during growing phase on the performance and carcass traits in beef bulls finished on the pasture

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