Embryonic Mortality
Mostrando 1-12 de 78 artigos, teses e dissertações.
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1. Sanitary program to reduce embryonic mortality associated with infectious diseases in cattle
Abstract Among reproductive disorders in dairy and beef cattle worldwide, embryonic mortalities stand out as one of the most frequent. Because of the multifactorial etiology, the clinical and laboratory diagnoses of embryonic mortality causes in cattle are quite complex. Often, infectious causes may account for up to 50% of bovine embryonic mortality rates a
Anim. Reprod.. Publicado em: 28/11/2019
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2. Effect of live body weight and method of synchronization on ovulation, pregnancy rate and embryo and fetal loss in buffalo heifers
Abstract This study aimed to assess the influence of live body weight (LBW) and age on reproductive performance in buffalo heifers synchronized by different treatments. The study was carried out on 146 Mediterranean buffalo heifers (mean age 25.3±13.4 months, LBW 424±47 kg), divided into 2 homogeneous groups and synchronized by Ovsynch-TAI Program (OVS; n
Anim. Reprod.. Publicado em: 25/11/2019
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3. Comparison of Several Turning Frequencies During the Storage Period of Red-Legged Partridge (Alectoris rufa) Hatching Eggs
ABSTRACT The effects of three egg-turning regimes during the pre-incubation storage period on egg weight loss, hatchability, embryonic mortality, chick weight at hatching and incubation length of red-legged partridge (Alectoris rufa) compared with unturned eggs were investigated. Two hundred eggs were allocated to four 50-egg batches stored at 15ºC and 80%
Braz. J. Poult. Sci.. Publicado em: 11/11/2019
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4. Data mining as a hatchery process evaluation tool
ABSTRACT The hatchery is one of the most important segments of the poultry chain, and generates an abundance of data, which, when analyzed, allow for identifying critical points of the process . The aim of this study was to evaluate the applicability of the data mining technique to databases of egg incubation of broiler breeders and laying hen breeders. The
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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5. EMBRYONIC MORTALITY AND BROILER CHICK QUALITY (Gallus gallus) FROM GLASS-SHELLED EGGS
Resumo Ovos de casca vítrea apresentam em suas superfícies pontos com coloração cinza claro de vários diâmetros, que ficam mais visíveis com o decorrer do período de armazenagem. Objetivou-se no trabalho, avaliar a fase de mortalidade embrionária, peso do ovo durante o período de incubação, intervalo de tempo de nascimento e a qualidade dos pinto
Ciênc. anim. bras.. Publicado em: 24/10/2019
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6. Response of duck breeders to dietary L-Carnitine supplementation during summer season
Abstract: A total number of 300 (225 ducks and 75 drakes) Sudani ducks, 28-wk-old were divided into five groups to investigate the effects of dietary L-carnitine (LC) supplementation on productive, hatching and physiological performance as well as nutrients digestibility coefficients. The results indicated that the productive performance and Semen quality pa
An. Acad. Bras. Ciênc.. Publicado em: 21/10/2019
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7. Reproductive performance of Nellore heifers raised in extensive system undergoing different vaccination protocols in fixed-time artificial insemination (FTAI)
RESUMO: O estudo foi conduzido para avaliar o desempenho reprodutivo de novilhas Nelore, não imunizadas para herpesvirus bovino tipo 1 (BHV-1), vírus da diarreia viral bovina (BVDV) e leptospirose bovina (LB), submetidas a diferentes protocolos vacinais em manejo de inseminação artificial em tempo fixo (IATF) e repasse com touro em monta natural. Um tot
Cienc. Rural. Publicado em: 07/10/2019
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8. Effects of In-Ovo Rutin Injection to Fertile Japanese Quail (Coturnix Coturnix Japonica) Egg on Hatchability, Embryonic Death, Hatchling Weight, and Hatchling Liver Oxidative and Nitrosative Stress
ABSTRACT This study was conducted with the aim of investigating the effects of the antioxidant rutin injected in fertilized quail eggs on incubation parameters and some hatchling liver biochemical parameters. The study was carried out with 6 groups including a control group and 5 different doses of rutin, and it involved 720 fresh Japanese quail (Coturnix co
Braz. J. Poult. Sci.. Publicado em: 02/09/2019
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9. [PROVISIONAL] Birth defects in Brazil: Outcomes of a population-based study
Abstract Birth defects (BDs) are functional and structural alterations in embryonic or fetal development. With an incidence of approximately 3-5%, BDs are a leading cause of infant mortality and lifelong disability. A population-based prospective case-control study was conducted for one year with 5204 infants, between 1st March 2011 and 29th February 2012, i
Genet. Mol. Biol.. Publicado em: 12/08/2019
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10. Evaluation of the embryotoxicity in zebrafish (Danio rerio) of the flocculant and coagulant compounds used for water remediation
Resumo Objetivo: O carreamento decorrente das atividades de mineração atinge corpos d'água, causando contaminação da água e acidificação por metais tóxicos. Como conseqüência, a depleção de oxigênio ocorre, com o desaparecimento de certos organismos bênticos, perdas na biomassa do fitoplâncton e do zooplâncton, e mortalidade de peixes. Rem
Acta Limnol. Bras.. Publicado em: 25/04/2019
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11. Disinfection of Fertile Eggs of Free-Range Poultry with Essential Oils
RESUMO O presente estudo investigou o efeito da desinfecção de ovos férteis de aves caipiras com o uso de óleos essenciais de capim limão (Cymbopogon flexuosus) e chá-de- pedestre (Lippia rotundifolia). Aplicaramse os seguintes tratamentos nos ovos selecionados: 1% (v/v) óleo essencial de capim limão (CL), chá-de-pedestre (CP), associação (CL + CP
Rev. bras. saúde prod. anim.. Publicado em: 25/02/2019
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12. Impacts of Breeder Age, Storage Time and Setter Ventilation Program on Incubation and Post-Hatch Performance of Broilers
ABSTRACT The impacts of breeder age (32 and 55 weeks), egg storage time (2-12 days), setter ventilation program (control-test) on incubation and post-hatch performance of broilers were investigated in this study. Young (Y) and old (O) breeders’ hatching eggs were incubated in two different setters operated by two different ventilation programs as control (
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03