109 documents found, page 1 of 11
Influence of lipid supplementation on milk components and fatty acid profile
Machado,Henrique Valentim Nunes; Pereira,José Carlos; Bettero,Vitor Pereira; Leonel,Fernando de Paula; Araújo,Raphael Pavesi; Moreira,Leonardo MarmoABSTRACT The objective of this study was to evaluate the effects of different lipid sources in diets for lactating cows on milk yield and composition, conjugated linoleic acid (CLA) content, and fatty acid profile in the milk fat. Five primiparous Holstein cows were distributed in a 5 × 5 Latin square design. Treatments were: control (no lipid addition) and four other diets containing different lipids sources -...
Kinetics of digestion of low-quality forage grazed by beef cattle fed supplemen...
Gomes,Raphael dos Santos; Oliveira,Tadeu Silva de; Pereira,José Carlos; Vieira,Ricardo Augusto Mendonça; Silva,Cássio José da; Leonel,Fernando de PaulaABSTRACT This experiment was conducted to evaluate the degradation kinetics and microbial efficiency of beef cattle grazing on low-quality forage and receiving supplements with different levels of rumen undegradable protein (RUP). The animals grazed on palisade grass pasture solely or this pasture and supplement containing 40 or 60 g of RUP per 100 g of crude protein (CP). The degradation profiles of neutral de...
Performance and metabolite profile of dairy cows fed tropical grasses and conce...
Gomes,Raphael dos Santos; Oliveira,Tadeu Silva de; Pereira,José Carlos; Vieira,Ricardo Augusto Mendonça; Henrique,Douglas SampaioABSTRACT Ten Holstein-Zebu crossbred cows distributed into two simultaneous Latin squares (5 × 5) as a 2 × 2 factorial arrangement formed by chopped sugarcane or elephant grass silage, both with high or low protein degradability supplements and a corn silage as a control treatment, were compared using orthogonal contrasts. The studied variables were the performance, plasma concentrations of urea-N, glucose, and...
Preventive effect of toothpastes with MMP inhibitors on human dentine erosion a...
Hannas,Angelica Reis; Kato,Melissa Thiemi; Cardoso,Cristiane de Almeida Baldini; Magalhães,Ana Carolina; Pereira,José Carlos; Tjäderhane,LeoABSTRACT The use of gels and mouthrinses with MMP inhibitors (chlorhexidine, and green tea extract) was shown to prevent erosive wear. The aim of this study was to analyze the protective effect of toothpastes containing MMP inhibitors on dentine loss induced by erosion in vitro. Material and Methods Five groups each containing 12 specimens of human root dentine were prepared. The specimens were subjected to 1 m...
Yield, chemical composition, and efficiency of use of nitrogen by Marandu grass
Oliveira,Tadeu Silva de; Leonel,Fernando de Paula; Pereira,José Carlos; Silva,Cássio José da; Baffa,Danielle Ferreira; Zervoudakis,Joanis TilemahosThe objective of this study was to evaluate the effect of five nitrogen doses on the productive and quality characteristics and the use efficiency of Brachiaria brizanthacv. Marandu grass. The treatments consisted of four doses of nitrogen (0, 60, 120, 180 and 240 kg ha-1), distributed through a completely randomized design with four replicates. Samples of the material were collected to analyze productivity var...
Factors affecting feed efficiency in dairy goats
Oliveira,Tadeu Silva de; Leonel,Fernando de Paula; Silva,Cássio José da; Baffa,Danielle Ferreira; Pereira,José Carlos; Zervoudakis,Joanis TilemahosThe objective of this study was to present some factors affecting feed efficiency in dairy goats. To develop our work, individual and average data from performance experiments with lactating goats were used. The following variables were evaluated: gross feed efficiency, adjusted feed efficiency, dry matter intake, milk-yield, 3.5% fat-corrected milk yield, dry matter digestibility, dietary neutral detergent fib...
Sulfur sources in protein supplements for ruminants
Silva,Cássio José da; Leonel,Fernando de Paula; Pereira,José Carlos; Costa,Marcone Geraldo; Moreira,Leonardo Marmo; Oliveira,Tadeu Silva deThe present study evaluates the efficiency of different sulfur sources for ruminant nutrition. The fiber digestibility and the amino acid profile were analyzed in the duodenal digesta of crossbred steers fed Brachiaria dictyoneurahay. The sources utilized were elemental sulfur (ES70S), elemental sulfur (ES98S); calcium sulfate in hydrated (HCS), CaSO4.2H2O, and anhydrous (ACS), CaSO4, forms; and ammonium sulfat...
Procedimentos para lidar com o tabu da morte
Pereira,José CarlosA morte, por mais estudada que seja, continua sendo um mistério. Lidar com ela não é algo nada fácil e por essa razão ela assusta tanto. Todos os medos do ser humano estão, no fundo, relacionados com o da morte. Tudo isso por ela ser um mistério do qual pouco ou nada sabemos, embora seja natural. À vista disso, as religiões dão a este tema o seu principal enfoque. Assim sendo, procuro neste artigo tratar o tabu...
A new approach about the digestion of fibers by ruminants
Moreira,Leonardo Marmo; Leonel,Fernando de Paula; Vieira,Ricardo Augusto Mendonça; Pereira,José CarlosThe decisive role of metallic cations in the formation of supramolecular clusters involving lignin, cellulose, and hemi-cellulose and its relationship to energy losses in ruminants associated with fibrous feed resources is still not well understood. Indeed, interactions between lignin, cellulose and metallic cations generate highly stable clusters that significantly decrease the capability of cellulase to break...
Mineral deposition in tissues of cattle fed with different phosphates and relat...
Teixeira,Alexandre de Oliveira; Leonel,Fernando de Paula; Knoop,Rainer; Ferreira,Vanusa Patrícia de Araújo; Ribeiro,Everton TeixeiraForty-nine male calves were allotted in a randomized design, initially seven replicates per treatment at the end of the experiment were slaughtered four animals per treatment. Treatments CONT: control diet; FBC120: Dicalcium Phosphate 120:1 ratio P: F; MBC60: Monodicalcium phosphate 60:1 ratio P:F; FBC30: Dicalcium Phosphate 30:1 ratio P:F; SFT30: Super triple phosphate 30:1 ratio P:F; FBC10: Dicalcium Phosphat...