Publications by authors named "Camila Soares Cunha"
Fibre Sources on Performance and Carcass and Meat Characteristics of Feedlot Nellore Young Bulls.
J Anim Physiol Anim Nutr (Berl)
November 2024
We evaluated the replacement of neutral detergent fibre levels from forage (NDFfor) by cottonseed cake on the performance, and carcass and meat traits of Nellore young bulls finished in a feedlot. Individual data from 24 Nellore young bulls with 330 ± 4.54 kg of body weight (BW) and 18 ± 1 months old were used.
View Article and Find Full Text PDFComparison of ruminal microbiota, gene variation, and tick incidence between Holstein × Gyr and Holstein heifers in grazing system.
Front Microbiol
February 2024
Article Synopsis
- The study investigates the differences in ruminal microbiota, gene variation, tick incidence, and blood parameters between Holstein × Gyr and Holstein dairy heifers grazing on intensively managed Guinea grass.
- Results show that Firmicutes dominated the rumen microbiota in both breeds, but Holstein heifers had a higher abundance of Bacteroidota and a greater tick count compared to Holstein × Gyr heifers.
- The findings suggest that Holstein × Gyr heifers may have better adaptations in terms of microbiota composition, resistance to ticks, specific genetic variations, and higher levels of certain blood hormones and nutrients.
Nutrient intake, productive and metabolic parameters of Nellore bulls feed a forage free diet using cottonseed cake as a fiber source.
Trop Anim Health Prod
January 2024
We hypothesized that cottonseed cake in confined Nellore young bulls' diet as fiber source, could maintain or improve the nutrient intake, and productive and metabolic parameters. It was evaluated the total replacement of whole plant corn silage (WPCS) by cottonseed cake (CSC) as a source of fiber in the diet. A completely randomized design with two treatments and 12 replications was used.
View Article and Find Full Text PDFArticle Synopsis
- The study evaluated the potential of cottonseed cake as a substitute for corn silage in fiber-free diets for ruminants, focusing on its effects on ruminal gas production.
- Significant differences were found in the digestibility of dry matter, organic matter, and neutral detergent fiber across the different diets tested.
- The Brody and Ørskov models showed the best precision and accuracy for fitting degradation kinetics, regardless of the fiber source used in the diets.
Ruminal degradation kinetics of diets with different lipid sources and its influence on intake and milk yield of early lactation crossbred Holstein × Gir cows.
Trop Anim Health Prod
October 2021
The hypothesized that the dietary inclusion of different lipid sources does not alter diet quality, feed intake, and, consequently, milk yield of cows. Thus, this study aimed to evaluate the effects of supplemental lipid sources for early lactation crossbred cows on milk yield, intake, and diet quality through in vitro digestibility and fermentation kinetics, and to demonstrate which variables have the most impact on each diet using principal component analysis (PCA). Five early lactating crossbred ¾ Holstein × ¼ Gir cows (35 ± 8 days in milk), with a mean body weight of 410 ± 7.
View Article and Find Full Text PDFInadequate estimates of fiber and dry matter intake of sheep raised in tropical conditions may explain part of the inefficiency of those production systems. Therefore, we aimed to estimate dry matter intake (DMI) and neutral detergent fiber intake (NDFI) of hair sheep raised under tropical conditions. A meta-analysis of 61 independent performance experiments, comprising a total of 413 experimental units (treatment means or animals), was performed.
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