Soybean grain is a suitable replacement with soybean meal in multiple supplements for Nellore heifers grazing tropical pastures

Almeida, Daniel Mageste de; Marcondes, Marcos Inácio; Rennó, Luciana Navajás; Martins, Leandro Soares; Villadiego, Faider Alberto Castaño; Paulino, Mário Fonseca

doi:10.1007/s11250-018-1630-7

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…With the additional supply of nutrients via supplementation, the daily metabolic requirements are met more quickly (Brandão et al, 2016b). Despite the difference in control treatment performance for the supplemented animals (Table 3), ADG of control treatment was satisfactory, with greater values than those previously found in similar studies (Brandão et al, 2016a;Brandão et al, 2017;Almeida et al, 2018). This occurred because the forage consumed had a relatively good nutritive value, with high CP concentration (> 120 g kg -1 ; Table 2), above that recommended for ruminal microorganism maintenance (70 g kg -1 ; Sampaio et al, 2010).…”

Section: Discussionmentioning

confidence: 68%

Energy supplementation as strategy of pasture management

Santos

Cabral

et al. 2022

Acta Sci. Anim. Sci.

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This study evaluated the effect of increased energy via supplementation on the performance, ingestive behavior, nutrient digestibility, and nitrogen metabolism of grazing heifers fed tropical forage in the rainy-dry transition season. Treatments consisted of mineral supplementation ad libitum (control) and multiple supplements formulated to provide different energy levels and the same amount of protein (300 g CP animal d-1) and were denominated as low (LE; 340 g TDN animal d-1), medium (ME; 780 g TDN animal d-1) and high (HE; 1220 g TDN animal d-1) energy. Animals supplemented with ME, and HE had a greater average daily gain in relation to the control treatment, with an increase of 41 and 46%, respectively. Greater values for total apparent digestibility of neutral detergent fiber were observed for the treatment HE. Lesser values of urinary urea N were observed for the control and HE treatments. Our results define the use of energy levels in the supplement as a tool for pasture management. If the purpose of the production system is to enhance forage intake, the option is to supply supplements with less energy levels. In contrast, if the purpose is to increase the stocking rate, supplements with greater energy levels should be used.

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Section: Discussionmentioning

confidence: 68%

Energy supplementation as strategy of pasture management

Santos

Cabral

et al. 2022

Acta Sci. Anim. Sci.

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“…Thus, the effects of multiple or nitrogen supplementation in the dry season has the main role of improving the microbial activity in the rumen (Detmann et al, 2014b). Additionally, supplementation increases the performance in the beef heifers (Martins et al, 2016;Silva et al, 2017;Almeida et al, 2018). However, when considering the combination of supplemental nitrogen and energy Semina: Ciênc.…”

Section: Introductionmentioning

confidence: 99%

Nutritional and productive performance of grazing system beef heifers receiving multiple supplementation in the dry season

Ortega

Moreno

Paulino

2022

Semina: Ciênc. Agrár.

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This research was conducted to evaluate the effects of supplementation multiple on intake, digestibility, and microbial protein synthesis and, productive performance of grazing system receiving multiple supplementation in the dry season. Twelve Nellore heifers (averaging 214.6 ± 7.3 kg initial BW and 8.0 ± 0.10 months) were distributed to a completely randomized design in two treatments: unsupplemented (only mineral) and; supplemented (1 kg per animal day-1 of multiple supplement). Only the crude protein (CP) intake was increased by supplementation (P < 0.05). In addition, the supplementation increased the digestibility of organic matter (OM), CP, ether extract (EE), non-fibrous carbohydrates (NFC) and dietary content of digested OM (DOM) (P < 0.05). The supplementation decreased microbial nitrogen to ingested nitrogen ratio (MICNR) (P < 0.05) and increased the serum urea nitrogen (SUN) concentration and urinary nitrogen excretion (UNE) (P < 0.05) in the animals. Finally, average daily gain (ADG) and final BW (FBW) were not affected by supplementation (P > 0.05). In summary, the provision 1 kg per animal day-1 of multiple supplement for beef heifers in grazing system does not improve productive performance in dry season when there is adequate qualitative and quantitative availability of forage mass. However, provision of supplement increases the total nutrients digestibility and nitrogen statuses in the animals.

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“…The DM intake is not usually reduced in feedlot cattle fed diets with EE levels up to 5-6% (Felton & Kerley, 2004;Messana et al, 2014). Although there are few studies evaluating the dietary lipid content for grazing cattle, low lipid levels (3-4%) usually do not change the DM and forage intake (Almeida et al, 2018;Brokaw, Hess, & Rule, 2001).…”

Section: Introductionmentioning

confidence: 99%

Are the effects of dietary lipid content in grazing beef cattle independent of the amount of concentrate supplement?

Damasceno¹,

Valente²,

Barbizan³

et al. 2021

Semina: Ciênc. Agrár.

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This study aimed to evaluate the effects of levels of concentrate supplement and dietary lipids on the nutritional characteristics, metabolic parameters, and performance of Nellore bulls grazing tropical pasture. Twenty-seven Nellore bulls were allotted to 2 × 2 completely randomized factorial design with two levels of supplementation and two levels of dietary lipids. The concentrate supplement was fed at 4 g kg-1 BW (low supplementation) and 8 g kg-1 BW (high supplementation), whereas the dietary lipid content was 28 g of ether extract (EE) g-1 on a dry matter basis (DM) (low-lipid diet) and 42 g EE kg-1 DM (high-lipid diet). There was no interaction between the level of concentrate supplement and dietary lipid content on all studied variables. High levels of supplementation led to shorter grazing time and reduced forage dry matter intake (DMF). On the other hand, the DM intake increased with increasing levels of concentrate supplement, with no significant effects on DM digestibility. The dietary lipid content did not affect forage and DM intakes. However, the digestibility of DM and neutral detergent fiber (NDF) were lowest in high-lipid diets. Bulls receiving high levels of supplementation had higher average daily gains than low-supplemented animals. Neither the amount of concentrate supplement nor the dietary lipid content affected the hot carcass yield and carcass weight. Carcass fat deposition was greater in bulls fed high-lipid diets than in animals receiving low-lipid diets. The effects of the level of concentrate supplement and dietary lipid content on the nutritional characteristics and performance of grazing beef cattle are independent. Concentrate supplementation at 8 g kg-1 BW increases cattle performance but decreases forage utilization. Diets containing 42 g EE kg-1 DM reduces the digestibility of dry matter and fiber fractions, but increases backfat thickness.

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Soybean grain is a suitable replacement with soybean meal in multiple supplements for Nellore heifers grazing tropical pastures

Cited by 8 publications

References 16 publications

Energy supplementation as strategy of pasture management

Energy supplementation as strategy of pasture management

Nutritional and productive performance of grazing system beef heifers receiving multiple supplementation in the dry season

Are the effects of dietary lipid content in grazing beef cattle independent of the amount of concentrate supplement?

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