Results 111 to 120 of about 86,514 (252)

Synergistic Toxicity of Low‐Concentration Metal Mixture on Male Rats: Reproductive, Renal, and Hepatic Effects

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Mining plays a crucial role in economic development, but improper management can lead to severe environmental degradation. Particularly for iron ore, mining generates vast amounts of tailings often stored in unstable dams. This study aims to investigate the toxicological impacts of environmentally relevant concentrations of metals mixture ...
Kalinka Helóra Gomes de Almeida   +7 more
wiley   +1 more source

O emprego da inseminação artificial nas ovelhas. [PDF]

open access: yes, 2012
A forma de utilização do sêmen e a eficácia da inseminação artificial; Fatores relacionados aos sistemas de produção; Sistemas de sincronização; Implicações e recomendações.bitstream/item/55718/1/CR25-02 ...
MORAES, J. C. F.
core  

Factors associated with the reproductive performance of ewes inseminated laparoscopically in England and Wales: A longitudinal study

open access: yesVeterinary Record, EarlyView.
Abstract Background Laparoscopic intrauterine artificial insemination (Lap‐AI) is used in sheep genetic improvement programmes. However, the lambing rate (LR) (i.e., the proportion of inseminated ewes that lamb) following Lap‐AI is variable. Previously, one small UK study investigated factors associated with LR, but it did not adjust for dependencies ...
Mike J. Glover   +2 more
wiley   +1 more source

Parâmetros físicos, morfológicos e bioquímicos do sêmen de ovinos da raça Santa Inês criados no Estado do Ceará. [PDF]

open access: yes, 2019
Muitas são as fontes de variação da qualidade seminal de um e, um dos requisitos básicos no processo prévio de tecnologia do sêmen se baseia no uso adequado das técnicas de colheita, as quais podem exercer influência sobre a quantidade e qualidade do ...
ALMEIDA, H. C. G.   +4 more
core  

Recovery of male DNA acquired from carrion‐feeding insects in a simulated sexual assault scenario

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract When bodies of sexual assault victims are discovered in advanced stages of decomposition, the recovery of direct DNA evidence is often compromised, posing a challenge in criminal investigations. This study aimed to determine insect colonization and succession patterns on pig carcasses inoculated with semen and to assess the feasibility of ...
Tinotenda Angel Mupfumi   +2 more
wiley   +1 more source

Sperm parameters and biochemical components of goat seminal plasma in the rainy and dry seasons in the Brazilian Northeast: the season's influence on the cooling of semen Caracrterísticas espermáticas e bioquímicas do plasma seminal de caprinos nas estações chuvosa e seca do Nordeste brasileiro: influência da estação no resfriamento do sêmen

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2013
The present study aimed to verify the caprine semen characteristics during dry and rainy seasons in the Brazilian Northeast, and the influence of these seasons on cooled semen.
G.V. Aguiar   +7 more
doaj  

Iflaviruses in arthropods: when small is mighty

open access: yesInsect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia   +3 more
wiley   +1 more source

Unravelling Evolutionary Dynamics of Female Sexual Cannibalism and Male Reproductive Strategies in Spiders

open access: yesIntegrative Zoology, EarlyView.
Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer   +3 more
wiley   +1 more source

CRIOPRESERVAÇÃO DE SÊMEN EQUINO PREVIAMENTE REFRIGERADO COM E SEM PLASMA SEMINAL POR 12 HORAS

open access: yesBrazilian Journal of Veterinary Medicine, 2013
Na espécie equina a utilização do sê- men congelado tem fatores limitantes como a necessidade de mão de obra especializada, o alto custo dos equipamentos, assim como locais apropriados nos haras para manipulação do sêmen.
Hélène Lacerda de Resende   +5 more
doaj  

Desempenho produtivo de fêmeas das raças Canchim e Nelore. IV. Segundo parto. [PDF]

open access: yes, 2018
Foram estudadas 57 vacas da raça Canchim e 57 vacas da raça Nelore, com enfoque sobre o primeiro intervalo entre partos e a idade e peso ao segundo parto.
ALENCAR, M. M. de, BUGNER, M.
core  

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