Intake, performance and estimated methane production of Nellore steers fed soybean grain

Messana, Juliana Duarte; Canesin, Roberta Carrilho; Fiorentini, Giovani; Reis, Ricardo Andrade; Arcuri, Pedro Braga; Berchielli, Telma Teresinha

doi:10.1590/s1516-35982014001200006

Cited by 2 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the maximum dietary EE content was 42 g kg -1 DM, which is not enough to affect the nutritional characteristics in feedlot studies (Messana et al, 2014), the NDF and OM digestibilities were lower in high-lipid than in low-lipid diets. The high proportion of forage in diets helped to reduce the digestibility of OM and NDF with increasing lipid levels because forage-based diets are more susceptible to disrupt rumen fermentation with lipid inclusion (Jenkins, 1993).…”

Section: Resultsmentioning

confidence: 94%

“…On the one hand, bulls fed high-lipid diets (80 to 100g of EE kg -1 DM) have lower DM intake and performance (Felton & Kerley, 2004;Jordan et al, 2006). On the other hand, some feedlot studies have shown that cattle performance is not affected by moderate lipid levels (40 to 60 g of EE -1 kg), even though some authors report a decrease in DM intake (Bassi et al, 2012;Messana et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…High-lipid diets are associated with decreased DM intake (Fiorentini et al, 2012) and reduced fiber digestibility in the rumen (Hall, Goetsch, Landis, Forster, & Brake, 1990). 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%

See 2 more Smart Citations

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.

View full text Add to dashboard Cite

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.

show abstract

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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.

View full text Add to dashboard Cite

show abstract

Could the breed composition improve performance and change the enteric methane emissions from beef cattle in a tropical intensive production system?

Maciel

Barbosa²,

Tomich

et al. 2019

PLoS ONE

View full text Add to dashboard Cite

Crossbreeding has been used to improve performance in beef cattle, however the effects of breed composition on methane (CH 4 ) production, yield and intensity from cattle raised in tropical intensive and integrated systems remain unknown. To assess the impact of breed composition on performance and methane emissions, Nellore (NEL; yr 1: BW = 171.5 ± 19.4 kg; n = 10; yr 2: BW = 215.8 ± 32.3 kg, n = 25) and Angus x Nellore crossbred (AN; yr 1: BW = 214.2 ± 26.4 kg, n = 10; yr 2: BW = 242.5 ± 32.2 kg, n = 25) were compared. The animals grazed on integrated crop-livestock system in the growing phase (stocking rate 2452 kg BW/ha, herbage mass 4,884 kg dry matter (DM)/ha, forage allowance 5.9 kg DM/100kg BW) and then were finished in a feedlot. Steers (n = 8) from each breed composition were randomly selected in each phase to measure CH 4 production using a sulfur hexafluoride (SF 6 ) tracer technique and DM intake (DMI) using titanium dioxide. Compared with NEL, AN had both superior total gain and average daily gain (ADG) in the grazing period. The AN presented greater ADG in the feedlot with a shorter finishing period and resulted in greater carcass yield and carcass ADG. Methane production (kg/period) was lower in NEL (19% less) than AN in grazing ( P <0.01), and no difference was observed in feedlot. The NEL had less CH 4 intensity (CH 4 /BW) in grazing but greater CH 4 per unit of ADG in the feedlot compared to AN. Breed composition did not influence the CH 4 yield (CH 4 /DMI) in either phase, despite the difference in feedlot DMI (kg/day). In conclusion, crossbreeding may be an option to improve performance and reduce the CH 4 per ADG in tropical climate conditions, resulting in lower methane emission per kg of meat produced.

show abstract

Intake, performance and estimated methane production of Nellore steers fed soybean grain

Cited by 2 publications

References 25 publications

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

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

Could the breed composition improve performance and change the enteric methane emissions from beef cattle in a tropical intensive production system?

Contact Info

Product

Resources

About