Publications by authors named "Helena Viel Alves Bezerra"
This study aimed to evaluate the effectiveness of different additives in preventing urolithiasis in lambs fed a diet rich in concentrate and their impact on performance and blood and urinary parameters. Thirty-two noncastrated male lambs, crossbred Dorper × Santa Inês, with initial body weights (BWs) of 23 ± 0.1 kg and ages of 50 ± 5 days, were kept in individual pens and fed a diet composed of 6% ssp.
View Article and Find Full Text PDFInfluence of Molybdenum and Organic Sources of Copper and Sulfur on the Performance, Carcass Traits, Blood Mineral Concentration, and Ceruloplasmin Activity in Lambs.
Animals (Basel)
September 2023
Article Synopsis
- - This study examined the impact of molybdenum (Mo), copper (Cu), and sulfur (S) from different sources on lamb performance, carcass characteristics, and blood mineral levels over 84 days.
- - Forty male lambs were divided into ten treatment groups, with variations in the combinations of Mo, Cu, and S sources, and all groups received a controlled diet with added minerals.
- - Results showed that while organic Cu and S boosted average daily gain, they did not lead to heavier body weights at the end of the study, and different treatments affected serum mineral concentrations differently.
Effect of Castor and Cashew Nut Shell Oils, Selenium and Vitamin E as Antioxidants on the Health and Meat Stability of Lambs Fed a High-Concentrate Diet.
Antioxidants (Basel)
December 2020
Functional oils are known for their compounds with antioxidant, antimicrobial and anti-inflammatory properties, and are used in ruminant nutrition as alternatives to chemicals in order to improve performance. This study aimed to compare the influence of castor and cashew nut shell oils with pure organic selenium (hydroxy-selenomethionine) plus vitamin E, which are known and well-stablished antioxidants, on the performance traits, shelf life and microbial quality of the meat, physiological functions and oxidative stress control of lambs. Thirty-two Dorper x Santa Ines lambs (initial bodyweight of 22.
View Article and Find Full Text PDFStress at the end of sheep gestation can damage the reproductive development of young males. The aim of the present study was to evaluate the effects of LPS administration in the last third of sheep pregnancy on the reproductive parameters of prepubertal rams. Thirty-six pregnant nulliparous ewes (12 ± 2 months old; 45 ± 6 kg) were assigned to two treatments, LPS (E.
View Article and Find Full Text PDFEffect of Macleaya cordata and Magnolia officinalis plant extracts on oxidative stress control in lambs fed a high-concentrate diet.
Asian-Australas J Anim Sci
June 2020
Objective: The objective of this experiment was to compare conventional antioxidants and plant extracts for oxidative stress control in lambs fed a high-concentrate diet.
Methods: Forty-eight male Dorper×Santa Ines lambs with an initial weight of 20±1.49 kg and 60 days of age, were used to evaluate the effects of feeding a combination of Macleaya cordata and Magnolia officinalis plant extracts (0 vs 320 mg/kg dry matter [DM]) in combination with selenium+vitamin E (0 vs 100 IU/kg DM of vitamin E and 0.