Search Results - "João Alberto Negrão"

Is the temperament of crossbred dairy cows related to milk cortisol and oxytocin concentrations, milk yield, and quality? by Marçal-Pedroza, Maria Guilhermina, Campos, Mariana Magalhães, Martins, Marta Fonseca, Silva, Marcos Vinícius Barbosa, Paranhos da Costa, Mateus José Rodrigues, Negrão, João Alberto, Sant'Anna, Aline Cristina

“…Reactive dairy cows are more susceptible to stress, and this may result in negative effects on milk yield and quality. The aims of this study were to…”
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High body energy reserve influences extracellular vesicles miRNA contents within the ovarian follicle by Bastos, Natália Marins, Goulart, Rodrigo Silva, Bambil, Danilo Brito, Bridi, Alessandra, Mazzarella, Rosane, Alves, Luana, da Silva Rosa, Paola Maria, Neto, Adomar Laurindo, Silva, Saulo Luz, de Almeida Santana, Miguel Henrique, Negrão, João Alberto, Pugliesi, Guilherme, Meirelles, Flávio Vieira, Perecin, Felipe, da Silveira, Juliano Coelho

“…Aiming to evaluate the effects of increased body energy reserve (BER) in Nellore cows' reproductive efficiency, cows were fed with different nutritional plans…”
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Feed efficiency and maternal productivity of Bos indicus beef cows by Broleze, Danielly Fernanda, Souza, Luana Lelis, Zorzetto, Mariana Furtado, Savegnago, Rodrigo Pelicioni, Negrão, João Alberto, Bonilha, Sarah Figueiredo Martins, Mercadante, Maria Eugênia Zerlotti, Duarte, Marcio de Souza

“…This study evaluated 53 primiparous cows (36.8±1.23 months old and 484±40.9 kg of body weight) performance tested (GrowSafe® System) from 22±5 to 190±13 days…”
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Long-term heat stress at final gestation: physiological and heat shock responses of Saanen goats by Hooper, Henrique Barbosa, dos Santos Silva, Priscila, de Oliveira, Sandra Aparecida, Merighe, Giovana Krempel Fonseca, Titto, Cristiane Gonçalves, Negrão, João Alberto

“…The long exposure to heat negatively changes performance and productivity of animals, particularly when heat stress is associated with gestation. Indeed,…”
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Benefits of tactile stimulation and environmental enrichment for the welfare of crossbred dairy calves by Miranda, Catiucia Oliveira, Lima, Maria Lúcia Pereira, Filho, Aníbal Eugênio Vercesi, Salles, Marcia Saladini Vieira, Simili, Flávia Fernanda, Negrão, João Alberto, Ribeiro, Enilson Geraldo, Faro, Lenira El

“…The aim of this study was to evaluate behavioural and physiological variables of 18 Gir x Holstein calves housed in groups submitted to two treatments:…”
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Effect of Acute and Cumulative Stress on Gene Expression in Mammary Tissue and Their Interactions with Physiological Responses and Milk Yield in Saanen Goats by Vasconcelos, Marta Liliane de, Silva, Priscila Dos Santos, Hooper, Henrique Barbosa, Merighe, Giovana Krempel Fonseca, Oliveira, Sandra Aparecida de, Negrão, João Alberto

“…This study addresses the hypothesis that different acute stressors can cumulatively decrease milk yield. In fact, in a time of global warming, the impact of…”
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Effects of Training for First Milking Involving Positive Tactile Stimulation on Post-Calving Maternal Behaviors in Primiparous Gyr Dairy Cows by Vicentini, Rogério Ribeiro, El Faro, Lenira, Ujita, Aska, Ceballos, Maria Camila, Negrão, João Alberto, Sant'Anna, Aline Cristina

“…In dairy systems with Zebu breeds, calves are not immediately separated from their dams after calving; consequently, maternal care and protective behavior are…”
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Cumulative effect of different acute stressors on physiological and hormonal responses and milk yield in lactating Saanen goats by Vasconcelos, Marta Liliane de, Silva, Priscila dos Santos, Merighe, Giovana Krempel Fonseca, Oliveira, Sandra Aparecida de, Negrão, João Alberto

“…This study addresses the hypothesis that acute stress can cumulatively cause a decrease in milk yield in Saanen goats. In fact, dairy animals are subject to…”
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Estrus Prediction Models for Dairy Gyr Heifers by Andrade, Valesca Vilela, Bernardes, Priscila Arrigucci, Vicentini, Rogério Ribeiro, Oliveira, André Penido, Veroneze, Renata, Ujita, Aska, Negrão, João Alberto, El Faro, Lenira

“…Technological devices are increasingly present in livestock activities, such as identifying the reproductive status of cows. For this, predictive models must…”
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Improvements in the behaviour of Gir dairy cows after training with brushing by Ujita, Aska, Ribeiro Vicentini, Rogério, Pereira Lima, Maria Lucia, Negrão, João Alberto, de Oliveira Fernandes, Leonardo, Penido Oliveira, André, Veroneze, Renata, El Faro Zadra, Lenira

“…The cow's behaviour and temperament influence handling and productivity. Training including tactile stimuli can improve zebu cow behaviour. The aim of the…”
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Influence of male on estrus behavior, estradiol and progesterone release and puberty onset on prepubertal Saanen goats by Augusto, Laurinda, Rodrigues, Alice Deleo, Merighe, Giovana Krempel Fonseca, Oliveira, Sandra Aparecida de, Bomfim, Gabriela Facholi, Negrão, João Alberto

“…The present study investigated the male effect on the estrus behaviors, estradiol and progesterone release in prepubertal Saanen goats. Twenty-nine female…”
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Performance of Nellore females in tropical pastures during the rainy season when supplemented with molasses blocks by Lopes, Henrique Moreira, Lima, Maria Lucia Pereira, Zilião, Gabriel Carletti, Negrão, João Alberto, Simili, Flávia Fernanda, Pires, Bianca Vilela, El Faro, Lenira

“…The objective of this study was to measure the effect of supplementation with molasses blocks compared with conventional mineral supplementation (with specific…”
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Welfare traits of Bos indicus cattle castrated immunologically and fed beta-adrenergic agonists by Martello, Luciane Silva, Antonelo, Daniel Silva, Consolo, Nara Regina Brandao, Pacheco, Veronica Madeira, Negrao, Joao Alberto, Rosa, Alessandra Fernandes, Leme, Paulo Roberto, Sousa, Rafael Vieira, Silva, Saulo da Luz

“…Objective: This work was carried out to evaluate the effects of zilpaterol hydrochloride (ZH) and ractopamine hydrochloride (RH) combined with immunocastration…”
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The effect of grazing intensity and supplementation on performance, stress indicators and metabolic profiles of finishing lambs by Costa, João Paulo Ramos, Silva, Wilton Ladeira da, Paula, Gregory Caputti de, Tsuzukibashi, Denise, Malheiros, Euclides Braga, Ruggieri, Ana Cláudia, Negrão, João Alberto

“…In the present study, the effect of grazing intensity (GI) and feed supplementation in sixty-four crossbred Santa Inês lambs was assessed based on performance,…”
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Correlation between sperm characteristics and testosterone in bovine seminal plasma by direct radioimmunoassay by Souza, Luiz Waldemar de Oliveira, Andrade, André Furugen Cesar, Celeghini, Eneiva Carla Carvalho, Negrão, João Alberto, Arruda, Rubens Paes de

“…The objectives of this study were to validate a non-extractive RIA for seminal testosterone and quantify the hormone using a solid-phase commercial kit, and…”
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Label-free quantitative proteomic analysis reveals muscle contraction and metabolism proteins linked to ultimate pH in bovine skeletal muscle by Poleti, Mirele Daiana, Moncau, Cristina Tschorny, Silva-Vignato, Bárbara, Rosa, Alessandra Fernandes, Lobo, Adalfredo Rocha, Cataldi, Thaís Regiani, Negrão, João Alberto, Silva, Saulo L., Eler, Joanir Pereira, de Carvalho Balieiro, Júlio César

“…The purpose of this research was to investigate the causes and consequences of pHu variations in beef cattle. A group of 176 Nellore beef cattle was evaluated…”
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Effect of positive tactile stimulation and prepartum milking routine training on behavior, cortisol and oxytocin in milking, milk composition, and milk yield in Gyr cows in early lactation by Ujita, Aska, El Faro, Lenira, Vicentini, Rogério Ribeiro, Pereira Lima, Maria Lucia, de Oliveira Fernandes, Leonardo, Oliveira, André Penido, Veroneze, Renata, Negrão, João Alberto

“…•Pre-partum training are effectives in improving zebuine cows' behavior in terms of milking at the beginning of lactation.•Pre-partum habituation in milking…”
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Live weight and metabolic hormone profile in steers moved in drives by D'Oliveira, Marcella Cândia, Souza, Maria Inês Lenz, Ítavo, Camila Celeste Brandão Ferreira, Corrêa Filho, Ruy Alberto Caetano, Morais, Maria da Graça, Negrão, João Alberto, Franco, Gumercindo Loriano

“…The objective was to determine the effects of driving on the growth of steers during 55 days of moving by drive and 84 days after the arrival. Twenty-five…”
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Effect of experimental stress and cortisol release induced by ACTH administration on expression of key genes related to milk synthesis and apoptosis during mammary involution of Saanen goats by Manica, Emanuel, Silva, Priscila Dos Santos, Merighe, Giovana Krempel Fonseca, de Oliveira, Sandra Aparecida, Bomfim, Gabriela Facholi, Negrão, João Alberto

“…This research paper addresses the hypothesis that stress, induced by ACTH administration and cortisol release increases somatic cell count (SCC) in mammary…”
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Nutrition of lambs with chromium propionate and its effects on metabolism, performance and meat quality by Maioli, Bruna Moreira, Ribeiro, Mariana Gudrun, de Carvalho, Amanda, Gonçalves, Leticia Aline, Almeida, Daniela Lázara de, Valle de Zoppa, André Luis do, Leme, Paulo Roberto, Negrão, João Alberto, Gallo, Sarita Bonagurio

“…This study aimed to evaluate the effects of two additional doses of chromium propionate on performance, carcass characteristics and meat quality, bone density…”
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