Results 81 to 90 of about 45,496 (221)
Foram realizados dois experimentos para se determinar as exigências de cálcio para melhor desempenho e deposição de cálcio (Ca) e fósforo (P) na tíbia e no fêmur de codornas japonesas, no período de um a 35 dias de idade.
Fernando Guilheme Perazzo Costa +5 more
doaj
Supplementation with 20 mg/kg Ag‐NPs significantly improved productive performance, egg quality, fertility, hatchability, and male sexual behaviour in Japanese quails compared to AgNO3, indicating superior efficacy of Ag‐NPs in enhancing reproductive efficiency and overall performance.
Swaira Ashfaq +11 more
wiley +1 more source
Erysipelas in quails (Coturnix Coturnix Japonica) [PDF]
Περιγράφεται για πρώτη φορά στην Ελλάδα περίπτωση ερυθράς σε ορτύκια Coturnix coturnix Japonica. Σε εκτροφείο 30.000 ορτυκιών παχύνσεως και αναπαραγωγής, προσβλήθηκε ένα σμήνος από 500 ορτύκια παχύνσεως που παρουσίασε υψηλή θνησιμότητα (40-50 πτηνά ...
Γκιθκόπουλος, Π. Ρ. +1 more
core
Increasing digestible arginine up to 1.36% in low‐protein (16.5% CP) diets for breeding Japanese quails improved body weight gain and Haugh unit without affecting egg production, fertility, hatchability, immune response or blood metabolites. ABSTRACT Background Dietary crude protein is one of the most expensive components of poultry diets. Arginine, an
Fatemeh Mortazavi +2 more
wiley +1 more source
Predation increases close to habitat edges, but how animals cope with local predation variations remained poorly studied. In a mosaic landscape, lapwings were compensating for increased nest predation close to forests. They acted more aggressively towards an avian predator when nesting close to trees, but comparatively tamer against a mammal.
Guillaume Dillenseger +5 more
wiley +1 more source
Um ensaio de desempenho foi realizado para determinar a exigência nutricional de lisina para codornas japonesas (Coturnix coturnix japonica) em postura.
Andréia de Mello Oliveira +5 more
doaj +1 more source
ASIP Variants in Livestock: It's Not Black and White
ABSTRACT Fur and feather pigmentation play an important role in the survival and reproduction of many species, as well as in selective breeding and agriculture. The synthesis of pigment molecules, eumelanin and pheomelanin, is partially regulated by the agouti signalling protein (ASIP) encoded by the ASIP gene.
Isabella M. Brown, Kylie A. Munyard
wiley +1 more source
Candling Analysis of Egg Development in an Endangered Bird Species Crested Ibis (Nipponia nippon)
Using candling images from 98 eggs, we present the first detailed description of egg and embryonic development in the endangered crested ibis. We identify diagnostic features of nonviable eggs and reveal that embryo mortality is concentrated during mid‐incubation and shortly before hatching. These findings provide a standardized reference for assessing
Yuansi He +5 more
wiley +1 more source
International audienceMany cases of introgressive hybridization have been reported among birds, particularly following introduction to the natural environment of individuals belonging to non-native similar taxa.
Rognon, Xavier, X +10 more
core +1 more source
Reproductive Response to Intermittent Light Regimens in Coturnix coturnix japonica
The effect of intermittent light regimens of one hour of light interspaced with dark periods of one, two or three hours, repeated three, four, five or six times per day was determined for age to first egg, hen day percent production and egg production for a 126 day experimental period in females, and the age to initial response of the cloacal gland in ...
W L, Bacon, K E, Nestor
openaire +2 more sources

