Post Weaning Growth
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Relationship of post-weaning growth and age at puberty in crossbred beef heifers
ABSTRACT This study was intended to evaluate body size structure and growth parameters of crossbred heifers fed at four nutritional levels to achieve puberty earlier. Animals were classified depending on their level of crossing between Nelore and Hereford and subjected to four nutritional levels (kg day−1) as follows: 0.5 (light; n = 32), 0.75 (medium; n =
R. Bras. Zootec.. Publicado em: 2017-05
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2. Effects of excess maternal thyroxin on the bones of rat offspring from birth to the post-weaning period
ABSTRACT Objective To evaluate, in rat offspring, bone changes induced by excess maternal thyroxin during pregnancy and lactation, and to assess the reversibility of these changes after weaning. Material and methods Twenty Wistar rats were distributed in two groups, hyperthyroid and control, that were treated daily with L-thyroxin (50 mcg/animal) and pla
Arch. Endocrinol. Metab.. Publicado em: 2016-04
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3. Avaliação genética de bovinos Nelore para pesos até a desmama sob modelos com diferentes estruturas de grupos de contemporâneos / Genetic evaluation of Nelore cattle for weights before weaning using different comtemporany groups structures
Com o objetivo de estimar (co)variâncias e predizer valores genéticos de pesos reais e padronizados aos 120 e 210 dias de idade sob modelos com diferentes estruturas de grupos de contemporâneos, analisaram-se dados de 72.731 bezerros Nelore, machos e fêmeas, nascidos de 1985 a 2005, em 40 rebanhos integrantes do Programa Nelore Brasil da ANCP. Foram comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
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4. Avaliação genética de bovinos Nelore para pesos até a desmama sob modelos com diferentes estruturas de grupos de contemporâneos / Genetic evaluation of Nelore cattle for weights before weaning using different comtemporany groups structures
Com o objetivo de estimar (co)variâncias e predizer valores genéticos de pesos reais e padronizados aos 120 e 210 dias de idade sob modelos com diferentes estruturas de grupos de contemporâneos, analisaram-se dados de 72.731 bezerros Nelore, machos e fêmeas, nascidos de 1985 a 2005, em 40 rebanhos integrantes do Programa Nelore Brasil da ANCP. Foram comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2011
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5. Utilização de diferentes metodologias para avaliação genética de bovinos de corte / Utilization of different methodologies for genetic evaluation of beef cattle
With the constant changes in the beef cattle production system, and an even more demanding consumer market, the focus on the carcass yield and quality is increasing. For the slaughters claims to be met, the breeder needs a tool that can identify the bulls that will be, in fact, the improvers to those specific features. Therefore, this project aims to: (i) Es
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/06/2011
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6. Environmental and genetic effects influencing pre and post-weaning growth traits of Tabapuã cattle in Brazil.
2001
Archives of Veterinery Science. Publicado em: 2011
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7. Curves of growth and productivity of Nellore and cross from different biological types in intensive production system / Curvas de crescimento e produtividade de vacas Nelore e cruzadas, de diferentes tipos biológicos, em sistema de produção intensiva
Initially, were analyzed weight-age data from birth to 100 months of age from cows of four genetic groups (G): Nellore (NEL), ½Nellore + ½Canchim (CN), ½Angus +½Nellore (AN) and ½Simmental + ½Nellore (SN), of a experiment carried out at Embrapa Southeast Cattle Research Center, State of São Paulo, Brazil. The animals considered in this study were born
Publicado em: 2010
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8. Prevalence of hypovitaminosis A in children from the semiarid region of Alagoas, northeastern Brazil, 2007. / Prevalência de hipovitaminose a em crianças de 0 a 59 meses da região semi-árida de Alagoas, 2007.
Vitamin A deficiency (VAD) is a nutritional deficiency that can be caused by insufficient intake of food sources of vitamin A, or due to problems in their absorption, transport or use. This is a problem of great importance because of the deleterious consequences that require the body, such as compromising the immune system, increasing susceptibility to infec
Publicado em: 2009
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9. Avaliação de características de carcaça e qualidade de carne e predição da composição corporal de grupos genéticos de bovinos selecionados para peso pós-desmame / Carcass characteristics and meat quality evaluation and body composition prediction of beef cattle genetic groups selected for post weaning weight
Animal production, specially beef cattle carcass characteristics and empty body composition were discussed in the first chapter. On the second chapter data from nine studies were compiled to evaluate the effects of selection for post-weaning weight on carcass characteristics and meat quality in experimental herds of control Nellore (NeC) and selected Nellore
Publicado em: 2008
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10. Programas preventivos com antibióticos para suínos em fase de creche e efeitos no desempenho, características de carcaça e índices sanitários
The use of "pulses" or "shocks" with antibiotics has been recommended and widely used throughout the production chain from pigs in Brazil. Accordingly, the objective of this study was to identify the best preventive program with antibiotics waived at the stage of nursery, which has effects consistent and lasting until the slaughter, reducing potential for lo
Publicado em: 2008
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11. Mananoligossacarídeo e colistina na dieta de leitões desmamados
The objective of this trial was to evaluate the effects of prebiotic, antimicrobial, or association of both promoters in piglets diet upon performance, intestinal histomorfometry, and total IgA and IgG serum levels, in each treatment. The experiment was carried out in commercial pig farm, one-site production, using a hundred weaned castrated males, hybrid pi
Publicado em: 2006
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12. Effect of chronic fish oil supplementation on renal function of normal and cachectic rats
In the present study we determined the effect of chronic diet supplementation with n-3 PUFA on renal function of healthy and cachectic subjects by providing fish oil (1 g/kg body weight) to female rats throughout pregnancy and lactation and then to their offspring post-weaning and examined its effect on renal function parameters during their adulthood. The a
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-10