Results 21 to 30 of about 2,676 (177)
Foram analisados registros de 20 rebanhos integrantes do Programa de Melhoramento Genético da Raça Nelore (PMGRN), estudando-se as seguintes variáveis: ganho de peso por dia de idade até os 120, 200, 310 e 350kg (GPDpesok), peso padrão aos 120, 240, 365 ...
Ricardo José Gunski +4 more
doaj +1 more source
Tolerância ao calor em bovinos das raças Nelore branco, Nelore vermelho e Pantaneira [PDF]
A identificação de parâmetros/ métricas associados à adaptação ambiental é uma das principais tendências e desafios da pecuária mundial. Desta forma, o objetivo deste trabalho foi avaliar as características de tolerância ao calor de bovinos da raça Nelore e Pantaneiro no ecossistema do Pantanal matogrossense no pico de calor da região.
Barbosa, Bruna Rocha Passos +7 more
openaire +3 more sources
Mensuracoes corporeas externas, pelvicas externas e internas foram realizadas in vivo em 142 femeas de bovinos da raca Nelore, utilizando regua padrao e pelvimetro de Rice. As medias e os respectivos desvios padrao para as mensuracoes corporeas foram: peso 390,19 ± 45,23 kg; perimetro toracico 174 ± 8,60 cm; altura de cernelha 129 ± 4,10 cm ...
Oliveira, Priscila Carvalho de +2 more
openaire +2 more sources
Fatores que influenciam a textura da carne de novilhos Nelore e cruzados Limousin-Nelore [PDF]
O objetivo deste trabalho foi avaliar fatores que influenciam a textura da carne de novilhos Nelore e cruzados Limousin-Nelore. Cinqüenta novilhos, 25 Nelore e 25 Limousin-Nelore, foram aleatoriamente divididos em cinco grupos de 10 animais (cinco de cada grupo genético), para o abate seriado, até 204 dias. Os valores de temperatura e pH muscular foram
Heinemann, Riana Jordão Barrozo +2 more
openaire +6 more sources
Maternal-calf relationships and their influence on calves up to 120 days [PDF]
Objectives. To research parental behavior and measure the weight of Nelore and Guzerat calves up to 120 days of age, collecting data from birth up to the first lactation. Materials and methods. Seven different corporal positions were considered to obtain
Emanoela Souza-Conde AL +7 more
doaj +3 more sources
Effect of shading on the physiological and reproductive parameters in Nelore cows
Abstract This study aimed to evaluate the physiological and reproductive parameters of Nelore cows under different microclimatic conditions. The experiment was performed in Central Brazil, which has a tropical climate, dry winter, and rainy summer. The experimental groups were divided into an area with shading (5.8 trees/ha; n = 42) and an area
Wilian Aparecido Leite da Silva +5 more
openaire +2 more sources
Blood parameters as a possible indicator of feed efficiency in Nellore bulls
The objective of this study was to investigate the relationships between energy, protein, enzymatic metabolism, and residual feed intake (RFI) in purebred Nellore bulls.
Alana Maria Menezes Di Calaça +5 more
doaj +1 more source
Serum cortisol concentration in cattle of different genetic groups slaughtered in confinement
The objective of this work was to compare the serum cortisol levels among four genetic cattle groups slaughtered in confinement. Thirty-two non-castrated male bovines from four genetic groups were analyzed: Nelore, Aberdeen Angus × Nelore, Caracu ...
Aracele Pinheiro Pales +7 more
doaj +1 more source
Evaluation of productivity of sexually precocious Nelore heifers
The objectives of the present study were to investigate the influence of yearling weight on the occurrence of early pregnancy and to determine differences between precocious and non-precocious heifers in terms of pre- and postnatal calf mortality, calf weight and height, mature cow weight, and stayability of the cow in the herd.
Terakado, Ana Paula Nascimento +3 more
openaire +4 more sources
A New Siamese Network Loss for Cattle Facial Recognition in a Few-Shot Learning Scenario
This study explores the use of a Siamese neural network architecture to enhance classification performance in few-shot learning scenarios, with a focus on bovine facial recognition.
João Porto +8 more
doaj +1 more source

