Results 11 to 20 of about 5,644,306 (315)

Isotopic Niche Segregation among Darwin’s Finches on Santa Cruz Island, Galápagos

Diversity, 2021
Darwin’s finches are a classic example of adaptive radiation involving differential use of dietary resources among sympatric species. Here, we apply stable isotope (δ13C, δ15N, and δ2H) analyses of feathers to examine ecological segregation among eight ...
Mariana Villegas, Catherine Soos, Gustavo Jiménez-Uzcátegui, Shukri Matan, Keith A. Hobson   +4 more
doaj   +1 more source

Glutamina e turnover do carbono no tecido adiposo de leitões Glutamine and carbon turnover in adipose tissue of piglets

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste estudo foi avaliar a influência da glutamina no turnover do carbono do tecido adiposo de leitões. Quarenta leitões foram desmamados aos 21 dias e distribuídos, aleatoriamente, em dois tratamentos: T1, dieta de plantas C3, sem ...
Fabiana Ribeiro Caldara, Carlos Ducatti, Dirlei Antonio Berto, Juliana Célia Denadai, Gustavo Augusto Andrade, Marilú Martins Gioso   +5 more
doaj   +1 more source

Rastreability of bovine meat and bone meal using the stable isotope technique in egg production

Scientia Agricola, 2021
The present study aimed to verify whether the inclusion of other ingredients in the diet of laying hens could interfere with the traceability of bovine meat and bone meal (BMBM) in eggs through stable carbon and nitrogen isotope analysis. Two hundred and
Juliana Célia Denadai, Julianna Santos Batistioli, José Roberto Sartori, Luciene Aparecida Madeira, Maria Márcia Pereira Sartori, Carla Cachoni Pizzolante, Sérgio Kenji Kakimoto, Armando Carlos Contin Neto, Vladimir Eliodoro Costa   +8 more
doaj   +1 more source

Estudo de adulteração em méis brasileiros através de razão isotópica do carbono A study of adulteration in brazilian honeys by carbon isotope ratio

Ciência e Agrotecnologia, 2010
Neste trabalho, objetivou-se analisar isotopicamente méis comercializados nas regiões Sul e Sudeste do Brasil, para a detecção de fraude. Foram colhidas amostras comerciais com registro no Serviço de Inspeção Federal, Estadual ou Municipal.
Cibele Regina de Souza-Kruliski, Carlos Ducatti, Waldemar Gastoni Venturini Filho, Ricardo de Oliveira Orsi, Evandro Tadeu Silva   +4 more
doaj   +1 more source

Rastreabilidade da farinha de carne e ossos bovinos em ovos de poedeiras comerciais pela técnica dos isótopos estáveis do carbono e nitrogênio Traceability of bovine meat and bones meal in eggs of commercial laying hens through carbon and nitrogen stable isotopes technique

Revista Brasileira de Zootecnia, 2011
Objetivou-se com este estudo rastrear a inclusão de farinha de carne e ossos bovinos em dietas para poedeiras comerciais, por meio da análise dos ovos e de suas frações (gema e albúmen), pela técnica dos isótopos estáveis do carbono e nitrogênio e ...
Juliana Célia Denadai, Carlos Ducatti, José Roberto Sartori, Antonio Celso Pezzato, Rosana Gottmann   +4 more
doaj   +1 more source

Traceability of bovine meat and bone meal in poultry by stable isotope analysis

Brazilian Journal of Poultry Science, 2006
Bovine meat and bone meal (MBM) was widely used in animal diets until outbreaks of Bovine Spongiform Encefalopathy (BSE) occurred in some countries.
AS Carrijo, AC Pezzato, C Ducatti, JR Sartori, L Trinca, ET Silva   +5 more
doaj   +1 more source

Phytochemical Statistical Mapping of Red Grape Varieties Cultivated in Romanian Organic and Conventional Vineyards

Plants, 2023
Red grapes are rich in phytochemicals such as phenolics and flavonoids, which are strongly correlated with their antioxidant activity. Thus, grapes as-harvested and grape extracts, especially those obtained from their seeds and pulp, have been reported ...
Cristina Mihaela Nicolescu, Marius Bumbac, Cristiana Radulescu, Claudia Lavinia Buruleanu, Radu Lucian Olteanu, Sorina Geanina Stanescu, Laura Monica Gorghiu, Bogdan Catalin Serban, Octavian Buiu   +8 more
doaj   +1 more source

Rastreabilidade da farinha de carne e ossos bovinos em ovos de poedeiras alimentadas com ingredientes alternativos Traceability of bovine meat and bone meal in eggs from laying hens fed with alternative ingredients

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi detectar traços de farinha de carne e ossos bovinos, em ovos de poedeiras alimentadas com dietas comerciais com inclusão de ingredientes vegetais alternativos e leveduras.
Juliana Célia Denadai, Carlos Ducatti, José Roberto Sartori, Antonio Celso Pezzato, Cleusa Móri, Rosana Gottmann, Mariela Akie Okino Mituo   +6 more
doaj   +1 more source

Stable isotopes (δ13C, δ15N) combined with conventional dietary approaches reveal plasticity in central-place foraging behaviour of little penguins (Eudyptula minor)

Frontiers in Ecology and Evolution, 2016
Marine top and meso predators like seabirds are limited by the need to breed on land but forage on limited or patchily distributed resources at sea. Constraints imposed by such central-place foraging behaviour change during breeding or even disappear ...
Andre eChiaradia, Fran eRamirez, Manuela G Forero, Keith A Hobson   +3 more
doaj   +1 more source

Establishing Winter Origins of Migrating Lesser Snow Geese Using Stable Isotopes

Avian Conservation and Ecology, 2012
Increases in Snow Goose (Chen caerulescens) populations and large-scale habitat changes in North America have contributed to the concentration of migratory waterfowl on fewer wetlands, reducing resource availability, and enhancing risks of disease ...
Viviane Hénaux, Larkin A. Powell, Mark P. Vrtiska, Keith A. Hobson   +3 more
doaj   +1 more source