RSS 1.0Artigos - Zootecnia - FCAV
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Relationship between thermal environment, thermoregulatory responses and energy metabolism in goats: A comprehensive review
Lima, Ana Rebeca Castro
; ; ; ; Fernandes, Márcia Helena Machado da Rocha ; Resende, Kléber Tomás de (Journal of Thermal Biology, 2022) [Resenha]
Knowledge on heat stress of animals is key to developing management strategies to mitigate its effects on livestock production. Efficiency and profitability of production systems will certainly be challenged by the forecasted ... -
Response of Phytogenic Additives on Enteric Methane Emissions and Animal Performance of Nellore Bulls Raised in Grassland
Teobaldo, Ronyatta Weich; ; Brito, Thais Ribeiro ; Leite, Rhaony Gonçalves ; Romanzini, Eliéder Prates ; ; Reis, Ricardo Andrade (Sustainability (Switzerland), 2022) [Artigo]
The objective of this study was to evaluate the intake and digestibility of nutrients, emission of enteric CH4, and productive performance of Nellore bulls grazing Urochloa brizantha cv. Marandu palisade grass pastures ... -
Using niche modelling and human influence index to indicate conservation priorities for Atlantic forest deer species
Oliveira, Márcio Leite de; Peres, Pedro Henrique de Faria ; Grotta-Neto, Francisco ; ; ; Duarte, José Maurício Barbanti (Journal for Nature Conservation, 2022) [Artigo]
To prioritise conservation actions and management strategies for threatened forest deer species at the Atlantic forest, we aimed to identify and describe the most suitable habitat areas for forest deer species and to ... -
Different proportions of starch and neutral detergent-soluble fiber in diets for feedlot lambs
; Ezequiel, Jane M. B.; Júnior, Antônio C. Homem ; ; Neto, Otávio R. Machado ; (Anais da Academia Brasileira de Ciencias, 2022) [Artigo]
This study evaluated the replacement of starch (ST; cracked corn) by neutral detergent-soluble fiber (NDSF; citrus pulp) and its effects on feed intake, performance, digestibility, carcass traits, and nitrogen balance of ... -
CD4 bovine gene: Differential polymorphisms among cattle breeds and a new tool for rapid identification
; ; ; ; Montassier, Hélio José; Oliveira, Henrique Nunes de ; (Veterinary Immunology and Immunopathology, 2022) [Artigo]
Two mutations in the CD4 bovine gene (G>T/Q306H; A>C/K310N) were identified as causative for altered staining with anti-CD4 mAb #CC8. We developed a HRM qPCR for genotyping these mutations and compare with immunophenotyping ... -
Home range of pampas deer in a human–dominated agro–ecosystem
; Duarte, José Mauricio Barbanti; (Animal Biodiversity and Conservation, 2022) [Artigo]
The subspecies of pampas deer Ozotocerus bezoarticus uruguayensis is an endemic and endangered cervid from southeast Uruguay. However, knowledge regarding its home range requirements in agroecosystems is scarce. Our aim ... -
Effects of condensed tannins on greenhouse gas emissions and nitrogen dynamics from urine-treated grassland soil
Siniscalchi, Débora; Cardoso, Abmael da Silva ; Corrêa, Darlena Caroline da Cruz ; Ferreira, Mariane Rodrigues ; Andrade, Marina Elizabeth Barbosa ; da Cruz, Luana Hybner Gomes ; Ruggieri, Ana Cláudia ; Reis, Ricardo Andrade (Environmental Science and Pollution Research, 2022) [Artigo]
Condensed tannins are a potentially important treatment option to mitigate N2O (nitrous oxide) and affect carbon dioxide (CO2) and methane (CH4) emissions; however, their effect has been poorly assessed. Here, we quantified ... -
Odd-chain fatty acids as an alternative method to predict ruminal microbial nitrogen flow of feedlot Nellore steers fed grain-based diets supplemented with different nitrogen sources
Campos, Letícia M.; Souza, Vinícius C. ; Granja-Salcedo, Yury T. ; Messana, Juliana D. ; ; Ganga, Maria Júlia G. ; Dias, Ana Veronica L. ; Costa, Vladimir E. ; Berchielli, Telma T. (Journal of Animal Science, 2022) [Artigo]
This study aimed to evaluate the use of total odd-chain fatty acids (OCFA) as a marker to estimate microbial nitrogen flow (MicN) and calculate the efficiency of microbial nitrogen synthesis (EMNS) in Nellore steers fed ... -
Current applications and perspectives of genomic selection in Bos indicus (Nellore) cattle
Fernandes Júnior, Gerardo Alves; ; Schmidt, Patrícia Iana ; Campos, Gabriel Soares ; ; ; Baldi, Fernando ; Carvalheiro, Roberto ; de Albuquerque, Lucia Galvão (Livestock Science, 2022) [Resenha]
Bos indicus cattle acquired very particular traits to thrive in distinct environments based on the evolutionary adaptation process they have undergone, becoming particularly relevant for tropical production systems. In ... -
Meta-analysis across Nellore cattle populations identifies common metabolic mechanisms that regulate feed efficiency-related traits
Mota, Lucio F. M.; Santos, Samuel W. B. ; Júnior, Gerardo A. Fernandes ; Bresolin, Tiago ; ; Silva, Josineudson A. V. ; ; ; Carvalheiro, Roberto ; Albuquerque, Lucia G. (BMC Genomics, 2022) [Artigo]
Background: Feed efficiency (FE) related traits play a key role in the economy and sustainability of beef cattle production systems. The accurate knowledge of the physiologic background for FE-related traits can help the ... -
Transcriptome Profile Reveals Genetic and Metabolic Mechanisms Related to Essential Fatty Acid Content of Intramuscular Longissimus thoracis in Nellore Cattle
Schettini, Gustavo Pimenta; ; ; Dos Santos, Wellington Bizarria ; ; de Albuquerque, Lúcia Galvão ; Baldi, Fernando ; Curi, Rogério Abdallah (Metabolites, 2022) [Artigo]
Beef is a source of essential fatty acids (EFA), linoleic (LA) and alpha-linolenic (ALA) acids, which protect against inflammatory and cardiovascular diseases in humans. However, the intramuscular EFA profile in cattle is ... -
Dynamics of Growth and Egg Traits in Three Dietary Balanced Protein Scenarios Applied for Laying Hens
da Nóbrega, Ingryd Palloma Teodósio; Reis, Matheus de Paula ; Morillo, Freddy Alexander Horna ; de Freitas, Luis Filipe Villas-Bôas ; ; Fernandes, João Batista Kochenborger ; Sakomura, Nilva Kazue (Animals, 2022) [Artigo]
The objective of this study was to evaluate laying hens from 8 to 102 weeks old, regarding their changes in performance, body composition, and egg components produced in three scenarios of nutrition. Three treatments ... -
Integrative analysis of Mazama temama (Artiodactyla: Cervidae) and designation of a neotype for the species
Sandoval, Eluzai Dinai Pinto; ; Morales-Donoso, Jorge Alfonso ; ; ; Duarte, Jose Maurício Barbanti (Journal of Mammalogy, 2022) [Artigo]
Mazama temama is the smallest red deer in Central America. It was one of the first species described for the genus, and until the end of the last century many authors considered it as a subspecies of Mazama americana due ... -
Meta-analysis to evaluate the effect of yeast as a feed additive on beef cattle performance and carcass traits
Torres, Rodrigo de Nazaré Santos; ; ; Ezequiel, Jane Maria Bertocco ; ; Neto, Otavio Rodrigues Machado ; (Livestock Science, 2022) [Artigo]
Yeast (Saccharomyces cerevisiae) is a group of feed additives widely used in ruminant diets to improve rumen health and consequently animal performance. The present study evaluated the effect of yeast inclusion on beef ... -
Production aspects of hay of tropical pasture of Urochloa brizantha, Megathyrsus maximus and Andropogon gayanus: Forage mass yield characteristics, evaluation of losses, dehydration and nutritional value of hays
(Crop and Pasture Science, 2022) [Artigo]Context: Tropical pasture have been little explored for haymaking, due to lack of information regarding loss of nutrients and of forage dehydration. Aims: This study aimed to evaluate the production aspects of tropical ... -
Economically sustainable shade for feedlot cattle in Brazil
Maia, Alex S.C.; Moura, Gustavo A.B. ; ; Milan, Hugo F.M. ; ; Fonsaca, Vinicius F.C. ; (2022 ASABE Annual International Meeting, 2022) [Trabalho apresentado em evento]
The positive effect of shade on animal welfare is widely known, but the literature lacks data on the magnitude of its economic impact. In this study, we tested the hypothesis that a well-designed shade structure is ... -
Birth, colostrum, and vigour traits of lambs born from Corriedale ewes grazing native pastures supplemented during the peripartum period
; ; ; ; ; ; Baldi, Fernando; (Small Ruminant Research, 2022) [Artigo]
To evaluate the effect of a short-term energy-protein supplementation during the peripartum on birth, colostrum, and vigour traits of lambs, 214 multiparous Corriedale pregnant ewes grazing native pastures were used. Ewes, ... -
Effect of different nitrogen fertilizers on nitrogen efficiency use in Nellore bulls grazing on Marandu palisade grass
Fonseca, Natalia Vilas Boas; ; Berça, Andressa Scholz ; Dornellas, Isadora Alves ; Ongaratto, Fernando ; Silva, Maria Luisa Curvelo ; Ruggieri, Ana Cláudia ; Reis, Ricardo Andrade (Livestock Science, 2022) [Artigo]
We evaluated the effects of different sources of nitrogen (N) applied to pastures of Urochloa brizantha cv. Marandu during the rainy season on the efficiency of N use in plants and animals. Continuous grazing with variable ... -
Integration analyses of structural variations and differential gene expression associated with beef fatty acid profile in Nellore cattle
Berton, Mariana Piatto; de Lemos, Marcos Vinícius Antunes ; ; Simielli Fonseca, Larissa Fernanda ; Silva, Danielly Beraldo dos Santos ; Peripolli, Elisa ; ; Magalhães, Ana Fabricia Braga ; Albuquerque, Lucia G. ; Baldi, Fernando (Animal Genetics, 2022) [Artigo]
This study aimed to integrate analyses of structural variations and differentially expressed genes (DEGs) associated with the beef fatty acid (FA) profile in Nellore cattle. Copy numbers variation (CNV) detection was ... -
Selection effect for growth traits on energy requirements in beef Nelore steers
; ; ; ; ; ; ; de Oliveira, Henrique Nunes (Tropical Animal Health and Production, 2022) [Artigo]
Growth data of 77,372 Nelore steers were used to estimate the selection effect on energy requirements considering two beef production systems: cow-calf and slaughter cycles. All the animals had measures from 120 days to ...