Results 41 to 50 of about 4,714 (194)

Efeitos da inclusão do farelo de sementes de jaqueira Artocarpus heterophyllus Lam.) na ração sobre a produção, pigmentação da gema e umidade fecal em codornas Effect of the addition of jackfruit (Artocarpus heterophyllus Lam.) seeds bran in dietary on the egg production, yolk pigmentation and dropping humidity in japanese quails

Ciência e Agrotecnologia, 2007
Um experimento foi conduzido com o objetivo de avaliar o efeito de níveis crescentes do farelo da semente de jaqueira (Artocarpus heterophyllus Lam.) na ração sobre a produção e pigmentação da gema dos ovos e umidade das excretas em 180 codornas ...
José Humberto Vilar da Silva, José Jordão Filho, Marcelo Luís Gomes Ribeiro, Edson Lindolfo da Silva   +3 more
doaj   +1 more source

Gonadal Development in Larvae of the Paedomorphic Ambystoma mexicanum (Amphibia: Urodela). [PDF]

J Morphol
This research analyzes the gonads of Ambystoma mexicanum larvae of both sexes, revealing significant changes such as the onset of vitellogenesis in females at 9 months of age and oocytes with signs of maturity at 12 months. In males, gonadal maturity occurs earlier, with a notable cephalocaudal and lateromedial testicular regionalization, and ...
Sánchez-Ortiz JL, Mendoza-Cruz E, Villagrán-SantaCruz M.   +2 more
europepmc   +2 more sources

Pigmenting Efficacy of Several Oxycarotenoids on Egg Yolk

Journal of Applied Poultry Research, 1999
Abstract This experiment was conducted to test the influence of three dietary sources of yellow (YEW) and two sources of red (RED) oxycarotenoids when combined at two different YEW to RED ratios (a 3x2x2 factorial arrangement of treatments) on egg yolk color.
N.C. Baiao, J. Mendez, J. Mateos, M. García, G.G. Mateos   +4 more
openaire   +1 more source

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

Advanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre, Margherita Bernardeschi, Matteo Battaglini, Gianni Ciofani   +3 more
wiley   +1 more source

Engineered Living Systems With Self‐Organizing Neural Networks: From Anatomy to Behavior and Gene Expression

Advanced Science, EarlyView.
Ectodermal tissue excised from Xenopus embryos self‐organizes into a three‐dimensional mucociliary organoid. Here, we generate a neural variant, termed neurobot, by implanting neural precursor cells. Neurobots develop mature neurons, adopt distinct morphologies, exhibit more complex motility, and respond differentially to neuroactive compounds. Imaging
Haleh Fotowat, Laurie O'Neill, Léo Pio‐Lopez, Megan M. Sperry, Patrick Erickson, Tiffany Lin, Michael Levin   +6 more
wiley   +1 more source

The Relationship of Yolk Pigmentation to Candled Grade

Poultry Science, 1973
Abstract Hens previously depleted of pigment were fed a white corn basal diet containing 11, 22, 44 and 66 mg./kg. of feed of either beta-apo-8′-carotenal (a yellow pigment) or canthaxanthin (a red pigment). Additional birds were maintained on the basal without added pigments. Seven collections of eggs were made at seven-day intervals beginning after
C.F. Hinton, Jack L. Fry, R.H. Harms
openaire   +1 more source

Versatile CRISPR‐Cas Tools for Gene Regulation in Zebrafish via an Enhanced Q Binary System

Advanced Science, EarlyView.
This study introduces CRISPR‐Q, a transgenic CRISPR‐Cas system leveraging the QFvpr/QUAS binary expression platform in zebrafish. CRISPR‐Q overcomes previous challenges in achieving stable and efficient gene regulation. By enabling precise spatiotemporal control of transcript knockdown (CRISPR‐QKD) and gene activation (CRISPR‐Qa), it provides a ...
Miaoyuan Shi, Weiqi Ge, Changheng Li, Bin Liu, Xiaoyi Deng, Chengjie Liu, Meijun Zheng, Pu Zhang, Lei Li, Ying Guo, Yunqi Han, Yu Yang, Yanxun V. Yu, Youngnam N. Jin   +13 more
wiley   +1 more source

Influence of the natural dyes bixin and curcumin in the shelf life of eggs from laying hens in the second production cycle - doi: 10.4025/actascianimsci.v34i2.12096

Acta Scientiarum: Animal Sciences, 2011
This study was developed to evaluate the effect of adding natural pigments on the storage of eggs from laying hens in the second production cycle submitted to diets based on corn and low-tannin sorghum.
Christine Laganá, Carla Cachoni Pizzolante, Patrícia Helena Nogueira Turco, José Evandro de Moraes, Érika Salgado Politi Braga Saldanha   +4 more
doaj   +1 more source

Production, egg quality, and intestinal morphometry of laying hens fed marine microalga

Revista Brasileira de Zootecnia, 2020
The objective of the present study was to evaluate production and egg quality as well as the intestinal morphometry of laying hens fed diets supplemented with marine microalga Dunaliella salina.
Raimunda Thyciana Vasconcelos Fernandes, Alex Augusto Gonçalves, Alex Martins Varela de Arruda   +2 more
doaj   +1 more source

The Influence of Light on Egg Yolk Pigmentation

Poultry Science, 1986
Abstract An experiment was conducted to determine the influence of light on yolk pigmentation. In addition, data from a previous experiment on yolk pigmentation were analyzed with respect to pen position in an open house to determine the influence of light intensity on yolk pigmentation.
S.A. WOODWARD, D.M. JANKY, R.H. HARMS
openaire   +1 more source