Browsing by Subject "Reproduction"
Now showing items 1-16 of 16
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(Nature, 2020)Egg size and structure reflect important constraints on the reproductive and life-history characteristics of vertebrates(1). More than two-thirds of all extant amniotes lay eggs(2). During the Mesozoic era (around 250 ...
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(Universidad de la Frontera, 2009)The objective of this study was to evaluate the effects of boron (B) using as a biological model Drosophila malanogaster. Analizing specifically the responses over descendency to doses of 6,0 and 12 mg/L, comparing a control ...
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(Springer, 2020)In high-mountain habitats, summer frosts have negative consequences for plant fitness, therefore high-mountain plants have developed mechanisms of avoidance and tolerance to cope with freezing temperatures. Various ...
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The biology and ecology of the jumbo squid Dosidicus gigas (Cephalopoda) in Chilean waters: a review (Univ Católica de Valparaíso, 2015)The jumbo squid Dosidicus gigas is the most abundant cephalopod species in the southeastern Pacific Ocean, which supports the biggest cephalopod fishery in the world. Due to its growing economic importance, the population ...
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(2002)Seminal and histological reproductive characteristics in three Brucella canis seropositive dogs are described. Seminal volume and sperm morphology were altered and no sperm was seen in one dog. This agrees with histological ...
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(Springer, 2020)In high-mountain habitats, summer frost events can have negative consequences for plant fitness. Despite this, most studies have evaluated the consequences of frosts for vegetative structures of perennial plants, and neither ...
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Effects of Malathion on Cellularity and Sperm Differentiation in Testis and Epididymis of Adult Rats (Sociedad Chilena de Anatomía, 2014)Malathion is an organophosphorous insecticide, used worldwide for pest and disease control; however, it could also affect the reproductive patterns of several species. The aim of this study was to determine the effects of ...
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(Universidad de la Frontera, 2014)Malathion is an organophosphorous insecticide, used worldwide for pest and disease control; however, it could also affect the reproductive patterns of several species. The aim of this study was to determine the effects of ...
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(Academic Press Inc., 2019)The invasion of Harmonia axyridis has had negative consequences on coccinellid assemblages, with a decline in abundance and diversity, but the coexistence of invasive and resident species may depend on the strength of ...
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(Elsevier, 2016)In this study, we report the cloning of three transcripts for leptin receptor in the European sea bass, a marine teleost of economic interest. The two shortest variants, generated by different splice sites, encode all ...
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(Wiley, 2016)Given the current environment in most developed countries, it is a challenge to maintain a good balance between calories consumed and calories burned, although maintenance of metabolic balance is key to good health. ...
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(2002)Aim: To explore the effect of exposure to commercial Parathion® (Pc) on the reproductive parameters (sperm and cocoon production and genotoxicity on male germ cells), the survival, the body weight and the gross anatomical ...
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(MDPI, 2020)Simple Summary Population control of free-roaming dogs is a topic of great interest worldwide. Immunocastration (immune blockade of GnRH-I, the hormone that commands reproductive ability) has emerged as a complementary ...
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(Sage, 2022)Background: Black women living with HIV account for a higher proportion of new HIV diagnoses than other groups. These women experience restricted access to reproductive services and inadequate support from healthcare ...
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(Sociedade Brasileira de Herpetologia, 2018)The natural history of most species of Telmatobius that live in the Altiplano of the Andes is unknown due to the difficulty of performing long-term studies and the logistics of working in these remote areas with extreme ...
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(Elsevier, 2018)Two types of spawning strategy have been described for ommastrephid squids: coastal and oceanic. It has been suggested that ancestral ommastrephids inhabited coastal waters and expanded their distribution into the open ...