Results 31 to 40 of about 2,463 (159)

Níveis de metionina + cistina para pintos de corte mantidos em ambiente termoneutro Levels of methionine + cystine for broiler chicks on thermoneutral environment

Revista Brasileira de Zootecnia, 2005
O experimento foi realizado para determinação da exigência de metionina + cistina (met + cis) da ração para pintos de corte do 1º ao 21º dia de idade mantidos em ambiente termoneutro.
Adhemar Rodrigues de Oliveira Neto, Rita Flávia Miranda de Oliveira, Juarez Lopes Donzele, Paulo Roberto Cecon, Roberta Gomes Marçal Vieira Vaz, Eliane Gasparino   +5 more
doaj   +1 more source

Evolutionary design of a flexible, seasonally migratory, avian phenotype: why trade gizzard mass against pectoral muscle mass? [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2019
Migratory birds undergo impressive body remodelling over the course of an annual cycle. Prior to long-distance flights, red knots (Calidris canutus islandica) reduce gizzard mass while increasing body mass and pectoral muscle mass. Although body mass and pectoral muscle mass are functionally linked via their joint effects on flight performance, gizzard
Kimberley J. Mathot, Eva M. A. Kok, Joseph B. Burant, Anne Dekinga, Petra Manche, Darren Saintonge, Theunis Piersma   +6 more
openaire   +3 more sources

HISTOLOGICAL AND HISTOCHEMICAL STUDY OF THE LIVER OF IRAQI LOCAL DUCKS [PDF]

Basrah Journal of Veterinary Research, 2015
The aim of study is provide basic data about the histological features of the liver of local Iraqi ducks and to study the glycogen content in the cytoplasm of the hepatocyte.
Maha Abd Al- Hadi Al- Abdulla
doaj   +1 more source

Avian adenovirus infections: diversity of pathogens, hazard to poultry industry and problems of immunoprophylaxis (review)

Ветеринария сегодня
The data on diversity of adenovirus pathogens in nature and the role of the main representatives of the Adenoviridae family in poultry infectious pathology are presented. Special attention is paid to problematic issues of immunoprophylaxis due to lack of
Yu. R. Zelenskiy, M. S. Volkov, I. A. Komarov, N. V. Moroz, N. S. Mudrak, T. V. Zhbanova   +5 more
doaj   +1 more source

Physicochemical Characterization of an Imported Extruded Pigeon Feed as a First Step Towards Local Production in Türkiye [PDF]

Brazilian Journal of Poultry Science
This study provides a physicochemical, microstructural, and thermal characterization of an imported extruded racing pigeon feed in the scope of reverse engineering. It aimed to bridge technological gaps in domestic production.
E Mevliyaoğulları
doaj   +2 more sources

Chronic dietary exposure to a glyphosate-based herbicide results in total or partial reversibility of plasma oxidative stress, cecal microbiota abundance and short-chain fatty acid composition in broiler hens

Frontiers in Physiology, 2022
Glyphosate-based herbicides (GBHs) are massively used in agriculture. However, few studies have investigated the effects of glyphosate-based herbicides on avian species although they are largely exposed via their food. Here, we investigated the potential
Mathias Fréville, Anthony Estienne, Christelle Ramé, Gaëlle Lefort, Marine Chahnamian, Christophe Staub, Eric Venturi, Julie Lemarchand, Elise Maximin, Alice Hondelatte, Olivier Zemb, Cécile Canlet, Rodrigo Guabiraba, Pascal Froment, Joëlle Dupont   +14 more
doaj   +1 more source

Effects of Lactic Acid Bacteria and Yeasts on Growth Performance, Intestinal Health, and Organ Morphometry of Broiler Chickens

Food Safety and Health, EarlyView.
The fermentation of molasses‐vinasse with lactic acid bacteria and yeasts improves growth, intestinal health, digestive, and immune organs in chickens, promoting their productive performance and organic development. ABSTRACT This study evaluated the probiotic effects of lactic acid bacteria and yeasts on productive parameters, intestinal health, and ...
José Miranda‐Yuquilema, Fabian Astudillo‐Riera, Juan Taboada‐Pico, Mercy Cuenca‐Condo, Kevin Astudillo‐Vallejo   +4 more
wiley   +1 more source

Fruit use and fruit processing by euphonias, specialized avian frugivores

Oikos, EarlyView.
Euphonias (Neotropical passerines in the genera Euphonia and Chlorophonia) form the quintessential example of a specialized avian frugivore, combining a high reliance on fruit as food and the restriction of fruit taxa exploited. To understand their specialization, we explored the integration of fruit morphological and nutritional traits with their ...
Marco A. Pizo, Paulo H. A. Camargo, Ana C. Crestani, Tobias N. Rojas   +3 more
wiley   +1 more source

Between birch and berries: seasonal dietary niche partitioning among sympatric alpine herbivorous birds

Oikos, EarlyView.
Niche partitioning is important for the coexistence of closely related species, allowing species to reduce overlap in resource use despite shared ecological requirements. In alpine environments, harsh climatic conditions and low habitat complexity constrain opportunities for ecological segregation, making seasonal resource fluctuation especially ...
Saria Sato‐Bajracharya, Rakel Blaalid, Jan Eivind Østnes, Oddmund Kleven, Marie Davey, Elise W. Ingvaldsen, Erlend B. Nilsen   +6 more
wiley   +1 more source

Investigation of the prevalence of Fowl adenovirus diseases in Iranian broiler chicken farms: a systematic review

Journal of Applied Poultry Research
SUMMARY: Fowl adenoviruses (FAdVs) cause a range of clinical symptoms, and viruses are becoming of great economic significance for the poultry industry. Hepatitis hydropericardium syndrome (HHS), inclusion body hepatitis (IBH), adenoviral gizzard erosion
Hamideh Najafi, Iman Pouladi, Maryam Hataminejad, Amin Jaydari   +3 more
doaj   +1 more source