Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources

Carvalho, Isabela Pena Carvalho de; Fiorentini, Giovani; Berndt, A.; Castagnino, Pablo de Souza; Messana, Juliana Duarte; Frighetto, R. T. S.; Reis, Ricardo Andrade; Berchielli, Telma Teresinha

doi:10.1590/s1806-92902016001200005

Cited by 16 publications

(9 citation statements)

References 40 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our previous experiments (Carvalho et al, 2016) we observed a reduction of methane emissions from cattle supplemented with linseed oil. Therefore, we decided to sequence DNA samples of control and linseed oil supplemented groups.…”

Section: Microbiologymentioning

confidence: 74%

Supplementation with lipid sources alters the ruminal fermentation and duodenal flow of fatty acids in grazing Nellore steers

Carvalho

Fiorentini

Castagnino

et al. 2017

Animal Feed Science and Technology

Self Cite

View full text Add to dashboard Cite

Lipid supplementation may adversely affect rumen fermentation, microbial abundance, nutrient utilization and the duodenal flow of fatty acids (FA). In a 5 × 5 Latin square design, 10 Nellore steers with ruminal and duodenal cannulas (292 ± 28 kg BW) were fed one of the five following dietary lipid sources in the concentrate, as follow: (1) no additional fat (WF); (2) palm oil (PO) derived from the Palmaceae plant Orbignya oleifera; (3) linseed oil (LO); (4) protected fat (PF); and (5) whole soybeans (WS). The dry matter intake (DMI) was greater for the animals supplemented with WF than for those supplemented with PO, PF, and WS. The DM digestibility was 11% greater for the animals in the WF group than for those in the PO group. The animals in the PO group had greater duodenal flows of capric (C10:0), lauric (C12:0) and myristic (C14:0) saturated fatty acids (SFA) than did animals in the other groups. The amount of flows of vaccenic acid and total unsaturated acids (UFA) was greater with LO supplementation. The unsaturated fatty acid (UFA) biohydrogenation ratio was greater in the animals supplemented with WS than in those supplemented with PO, LO, and PF. The acetate: propionate ratio was lower in the animals supplemented with PO and LO, at 2.9 and 3.0, respectively. The ruminal flow of particles and rate of fiber degradation were lower with PO supplementation. The proportion of archaea was reduced with the inclusion of PO, LO and PF. PO supplementation resulted in lower total apparent NDF digestibility than did WF, PF, and WS supplementation. Therefore, LO, PF and WS can be used as dietary supplements for grazing cattle without impairing fermentation. The inclusion of PO in the diets of grazing cattle may reduce the number of methanogens and alter fiber utilization.

show abstract

Section: Microbiologymentioning

confidence: 74%

Supplementation with lipid sources alters the ruminal fermentation and duodenal flow of fatty acids in grazing Nellore steers

Carvalho

Fiorentini

Castagnino

et al. 2017

Animal Feed Science and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Tools are being tested (e.g., lipid use, pasture management) to manipulate the rumen and to create management techniques that can reduce CH 4 emission, and, consequently, lower energy losses. For example, Carvalho et al (2016, Neto et al (2015and Fiorentini et al (2014 found lower values of energy losses when compared to those cited by IPCC (2006). Therefore, we realized that the better the quality of the diet, lower is the CH 4 emission in comparison to the IPCC default.…”

Section: A-bbmentioning

confidence: 78%

Effect of ground soybean and starch on intake, digestibility, performance, and methane production of Nellore bulls

Rossi

Fiorentini

Vieira

et al. 2017

Animal Feed Science and Technology

View full text Add to dashboard Cite

It was hypothesized that replacement of corn with soybean hulls as the energy source, combined with ground soybean as the lipid source, would reduce methane emissions from feedlot animals without affecting their performance. This study aimed to evaluate the effects of including ground soybean combined with either a high or a low level of starch on intake, digestibility, performance, and methane emission of young Nellore bulls (n = 28, initial weight = 395 ± 32 kg) in the feedlot during the finishing phase. Diet treatments consisted of high (HS; approx. 250 g/kg) or low (LS; approx. 110 g/kg) starch levels, with (WSB) or without (NSB) soybean. Ground soybean was added as a lipid source to diets HS-WSB, LS-WSB, HS-NSB, and LS-NSB, representing 58.7, 64.6, 24.8, and 31.4 g/kg ether extract in the total dry matter, respectively. Animals were distributed in a completely randomized design, in a 2 × 2 factorial arrangement. After 119 days, the animals were slaughtered. Animals fed soybean demonstrated an average reduction of 11% in their intakes of dry matter, organic matter, and crude protein (P = 0.01). There was a significant effect of the association between starch and soybean on neutral detergent fiber intake (P = 0.01). Diets containing soybean affected the digestibility of the animals, reducing the apparent digestibility of dry matter by 3% (P = 0.02) and the digestibility of organic matter by 2.8% (P = 0.03). A significant interaction was detected between starch and soybean on the apparent digestibility of ether extract (P = 0.02) and neutral detergent fiber (P = 0.04); the lowest values for ether extract (750 g/kg) and neutral detergent fiber (432 g/kg) were obtained with HS-WSB. The animals that received WSB had their feed efficiency increased by 17% (P = 0.01). The enteric CH 4 emissions of the animals fed WSB reduced significantly (P = 0.01), with 28% decrease in g CH 4 /d and g CH 4 /y, 16% decrease in g CH 4 per kg of dry matter intake, and 23% decrease in CH 4 losses per percent of gross energy intake. The inclusion of approximately 250 g/kg of soybean in the diet of young Nellore bulls in the feedlot provides an increase in their feed efficiency and reduces their enteric methane emission, regardless of the level of starch in the concentrate.

show abstract

“…It has been postulated that high levels of fat can be used as supplements for beef cattle without deleterious effects in the form of saturated or protected fat (Fiorentini et al , 2014; Carvalho et al , 2016). This statement supports the results found in the present study, in which the SB diet, with grain as a physical barrier that reduces the release of triglycerides present within the cells, did not affect intake or digestibility (Doreau and Ferlay, 1995).…”

Section: Discussionmentioning

confidence: 99%

Effects of different forms of soybean lipids on enteric methane emission, performance and meat quality of feedlot Nellore

et al. 2018

View full text Add to dashboard Cite

The aim of the current study was to evaluate the effect of different forms of soybean lipids on enteric methane emission, intake, performance, digestibility and meat quality of 40 young Nellore bulls (initial body weight (BW) 444 ± 10.2 kg and 24 ± 2.1 months). The dietary treatments were as follows: NF = no dietary additional fat (46.0 g ether extract (EE)/kg diet), SO = soybean oil (62.0 g EE/kg diet), SB = soy beans (without any processing; 62.0 g EE/kg diet) and RPF = rumen-protected fat based on soybean oil (62.0 g EE/kg diet). The intake of dry matter (DM), organic matter (OM), crude protein (CP) and neutral detergent fibre (NDF) was greater in the SO diet than those fed with NF. The SO diet decreased digestibility of NDF when compared with the NF and RPF diets. The diets did not affect digestibility of DM, OM, CP or emission of enteric methane. Animals fed with SO had greater average daily gain and feed efficiency in relation to the other diets tested. The SO diet increased hot and cold carcass weights and subcutaneous fat thickness of carcasses when compared with the NF diet. The proportions of saturated and unsaturated, mono and polyunsaturated, and n-3 and n-6 fatty acids were not affected significantly by treatments. The SO diets were demonstrated to be more beneficial for animal performance compared with diets without supplemental fat.

show abstract

Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources

Cited by 16 publications

References 40 publications

Supplementation with lipid sources alters the ruminal fermentation and duodenal flow of fatty acids in grazing Nellore steers

Supplementation with lipid sources alters the ruminal fermentation and duodenal flow of fatty acids in grazing Nellore steers

Effect of ground soybean and starch on intake, digestibility, performance, and methane production of Nellore bulls

Effects of different forms of soybean lipids on enteric methane emission, performance and meat quality of feedlot Nellore

Contact Info

Product

Resources

About