Performance, fecal egg count and feeding behavior of lambs grazing elephant grass (Pennisetum purpureum Schum.) with increased levels of protein supplementation

Alvarenga, Flavio A. P.; Garcia, Iraídes Ferreira Furusho; Alvarenga, Tharcilla I.R.C.; Dias, Paulo C.G; Alves, Felipe A.N.; Santos, Elicias Pereira dos; Casagrande, Daniel Rume; Teofilo, Tiago S; Sales, Luanna A.; Almeida, A. K.; Pereira, Idalmo Garcia

doi:10.1016/j.smallrumres.2022.106826

Cited by 2 publications

(2 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To determine indigestible neutral detergent fiber (NDFi), five bags of textile non-textile (TNT) per sample, containing 0.5 g forage and feces, were previously dried, weighed, and incubated for 264 h in the rumen of a cannulated cow [3,24]. Bags were removed, cleaned with water, dried at 65 • C and boiled for 1 h in a neutral detergent solution.…”

Section: Animals and Feeding Systemsmentioning

confidence: 99%

“…Pasture and feedlot are traditional management systems applied in livestock to promote greater growth rates and market-targeted fat deposition. The type of forage and grain has been shown to affect meat quality, mainly sensory characteristics, and the concentration of polyunsaturated fatty acids in the meat of lambs [1][2][3]. Pasture systems are richer in polyunsaturated fatty acids, which are beneficial for human health, while grain systems are known to enhance daily weight gain [4].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Feeding Systems on Performance, Blood Parameters, Carcass Traits, Meat Quality, and Gene Expressions of Lambs

dos Santos,

Dias Junior,

Alvarenga

et al. 2024

Agriculture

Self Cite

View full text Add to dashboard Cite

The aim of this study was to investigate the effects of feeding systems on the growth performance of Santa Inês x Dorper lambs, meat quality, fatty acid profile, and gene expression. Thirty lambs at an initial body weight of 22.6 ± 2.59 kg were randomly assigned to one of three feed systems: a grazing system with 1.2% body weight concentrate supplementation (GS); a feedlot system with 28% forage and 72% concentrate (FFC); or feedlot with 85% whole corn grain and 15% pellets (FHG). The lambs were slaughtered after 60 days of experiment. Average daily gain, glucose, and insulin concentration were higher for lambs on FHC than lambs on a GS feeding system. The fatty acid profile in the meat of the lambs fed GS showed a higher proportion of c9t11-C18:2, C20:5, C22:5, and C22:6 compared with FFC and FHC (p < 0.05). Meat tenderness was lower for lambs under FFC treatment compared with GS and FHG. FHG treatment provides better performance and higher deposition of lipid content in meat compared with GS and FHG. The expression of the genes SCD-1, SREBP1-c, and EVOL6 was greater in lambs undergoing GS and FHC treatments compared with FFC. Results of this research showed a reduced performance of grazing lambs compared with the feedlot system; however, it enhanced the fatty acid profile with increased levels of polyunsaturated acids and reduced n6/n3 ratio.

show abstract

Section: Animals and Feeding Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of Feeding Systems on Performance, Blood Parameters, Carcass Traits, Meat Quality, and Gene Expressions of Lambs

dos Santos,

Dias Junior,

Alvarenga

et al. 2024

Agriculture

Self Cite

View full text Add to dashboard Cite

show abstract

Performance, Meat Quality and Gene Expression of Grazing Lambs Supplemented with Macadamia Oil and Vitamin E

Dias Junior,

dos Santos,

Gallo

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

Macadamia oil has high concentrations of oleic and palmitoleic fatty acids, which can increase tissue sensitivity to insulin, improving glucose absorption efficiency, and reducing lipogenesis through gene modulation. The objective of this study was to evaluate the effects of macadamia oil associated with vitamin E supplementation on performance, blood parameters, meat quality and sensory characteristics, meat fatty acid profile, and expression of genes associated with lipid metabolism in grazing lambs. The experimental treatments were control diet (Control), Control + 0.1% of body weight of macadamia oil (MO), MO + 745 IU of vitamin E/dry matter (MOVE). Macadamia oil improved feed efficiency, reflecting a lower dry matter intake, as the average daily weight gain did not differ from Control. Meat quality parameters were not affected by macadamia oil or vitamin E supplementation. Supplementation with macadamia oil improved meat appearance, flavor, and overall liking. Supplementation with macadamia oil provided a higher proportion of C18:3 n3 and a lower proportion of CLA. The expression of SREBP-1c, PPAR-α, SCD1, and ELOVL6 genes were not modified with the supplementation of macadamia oil and vitamin E. In conclusion, supplementation with macadamia oil improves feed efficiency and meat quality; and the inclusion of 745 IU of vitamin E/kg of dry matter for grazing lambs reduces 36% of lipid oxidation of the meat.

show abstract

Performance, fecal egg count and feeding behavior of lambs grazing elephant grass (Pennisetum purpureum Schum.) with increased levels of protein supplementation

Cited by 2 publications

References 34 publications

Impact of Feeding Systems on Performance, Blood Parameters, Carcass Traits, Meat Quality, and Gene Expressions of Lambs

Impact of Feeding Systems on Performance, Blood Parameters, Carcass Traits, Meat Quality, and Gene Expressions of Lambs

Performance, Meat Quality and Gene Expression of Grazing Lambs Supplemented with Macadamia Oil and Vitamin E

Contact Info

Product

Resources

About