Results 31 to 40 of about 443,428 (169)

Eficácia da administração de ração a bezerras lactentes e conseqüências na desmama, recria e reprodução

open access: yesBoletim de Indústria Animal, 2014
Foram utilizadas bezerras cruzadas santa’gertrudi, nascidas no período de fevereiro a maio de 1975 e 1976 em delineamento inteiramente casualizado com dois tratamentos e 16 rapaticões. Os tratamentos diferiam apenas na fase de criacão. A recria e as coberturas das novilhas processavam-se no pasto.
Paulo Gastão da Cunha   +3 more
openaire   +5 more sources

The Red Queen unveils the sexual and mating strategies of flowers

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Although the conventional wisdom is that floral traits of plants evolved in concert with their mutualistic pollinators, here we showed that several key sexual and mating traits of plants, which modulate their outcrossing strategy, evolved in response to the pressure exerted by their antagonistic insect herbivores.
Carlos Roberto Fonseca   +2 more
wiley   +1 more source

Predictive factors for sperm retrieval and sperm injection outcomes in obstructive azoospermia: do etiology, retrieval techniques and gamete source play a role?

open access: yesClinics
Obstructive azoospermia is a relatively common male infertility condition. The main etiologies of obstructive azoospermia include congenital, surgical-derived, traumatic and post-infectious cases. Although seminal tract reconstruction is a cost-effective
Ricardo Miyaoka, Sandro C. Esteves
doaj   +1 more source

Gravidez Gemelar com uma Mola Hidatiforme Completa e um Co-Gémeo Viável

open access: yesActa Médica Portuguesa, 2014
A existência de uma gravidez gemelar bicoriónica com uma mola hidatiforme completa e um co-gémeo viável é um evento raro, sendo o diagnóstico habitualmente realizado no segundo trimestre.
Ana Beatriz Godinho   +4 more
doaj   +1 more source

Endogamia e reprodução de bovinos matiqueira da Estação esperimental de zootecnia de Pindaminhangaba

open access: yesBoletim de Indústria Animal, 2014
Dados de trinta anos, desde a formação do rebanho mantiqueira, em 1952, foram estudados para avaliar o efeito da endogamia nas características de reprodução: idade ao primeiro parto (IPP), intervalo entre partos (IEP), período de serviço (PS), período de gestação (PG) e peso ao nascer do produto (PN).
Guilherme Paes Guaragna   +3 more
openaire   +7 more sources

Molecular and Serological Detection of Coxiella burnetii in Small Ruminants in Northeastern Brazil

open access: yesVeterinary Medicine and Science, Volume 12, Issue 2, March 2026.
• Serology indicates that one‐third of the sheep and goats had previously been infected with Coxiella burnetii. • qPCR analysis revealed the ongoing presence of C. burnetii in all evaluated flocks, each with a previous history of reproductive disorders. • These results indicate the need for preventive measures and control of C.
Ana Karoline Sousa Mendes Simas   +7 more
wiley   +1 more source

Comparison of extenders and storage temperature in chilling canine semen

open access: yesCiência Animal Brasileira, 2020
The objective of this study was to evaluate the influence of a commercial milk-based extender compared with a self-made egg yolk extender in the quality of canine semen, stored with two different temperatures (5°C or 15°C) for short-term cooling.
Tatiana Almeida Pignataro   +6 more
doaj  

Estresse na reprodução de caprinos machos. [PDF]

open access: yes, 2015
Resumo: Quando o homem começou a domesticar os animais e colocá-los em cativeiro, sua principal preocupação restringia-se a como impedi-los de escapar e como poderiam ser mantidos vivos e saudáveis.
ELOY, A. M. X., PEREIRA, E. P.
core  

Cytologic Grading of Canine Mammary Tumors by Robinson's System Adapted to Romanowsky‐Type Rapid Staining: Prognostic Implications

open access: yesVeterinary Clinical Pathology, Volume 55, Issue 1, Page 55-67, March 2026.
ABSTRACT Background Mammary neoplasms are a major concern in intact female dogs, and cytologic examination is routinely used for initial screening. Although the adaptation of Robinson's cytologic grading system to canine species has been scarcely explored, it shows prognostic potential, particularly when correlated with other clinical and pathologic ...
Kaian F. Cavalcante   +6 more
wiley   +1 more source

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