Results: 339

Striated Musculature: Embryonic and Fetal Development

Int. j. morphol; 42 (2), 2024
SUMMARY: The different embryological origins of striated muscle tissue make it an interesting tissue but at the same time difficult to understand, this is how the musculature of the face comes from the first pharyngeal arch, on the other hand. The muscles of the tongue derive from the somites. The muscle...

Evaluation of Mexican sunflower (Helianthus annus l) leaf meal as a feed ingredient in shaver brown pullets

Braz. j. biol; 84 (), 2024
The use of alternative nutritional sources is an important topic for animal production such as poultry. This study examined the effect of replacing soybean meal with sunflower leaf meal in the diet of laying shaver brown pullets. A total of 30 laying birds were assigned to three treatments of 0% (as cont...

Ameliorative effects of Lactobacillus against Aflatoxin B1

Braz. j. biol; 84 (), 2024
Abstract Lactobacilli are probiotics with Aflatoxin (AF) detoxification ability, found in fermented products, GIT of animals and environment. Purpose of this study was to investigate the ability of broiler isolates of Lactobacillus against Aflatoxin B1 (AFB1). For this purpose, 5 isolates of Lactobacillu...

Qualidade de ovos de poedeiras comerciais de diferentes idades sob distintas temperaturas e períodos de armazenamento

O objetivo deste trabalho foi avaliar o efeito da idade das poedeiras sobre a qualidade dos ovos armazenados sob refrigeração ou temperatura ambiente. Foram utilizados 960 ovos de poedeiras comerciais com 32, 52 e 72 semanas de idade, armazenados por sete, 14, 21 e 28 dias. Adotou-se delineamento intei...

Desmistificando o consumo de carne de frangos e ovos no município de Xinguara, Pará

O trabalho teve como objetivo desmistificar o consumo de carne de frangos e ovos, por meio de palestras (pesquisa-ação) ministradas por acadêmicos dos cursos de zootecnia e medicina veterinária para discentes das escolas do município de Xinguara, Pará. A temática central abordou os principais mito...

Study of ex-ovo embryonic development of Gallus gallus domesticus

Int. j. morphol; 41 (2), 2023
SUMMARY: The domestic chicken is a species of bird that has been extensively studied in regard to its biology and as a model organism for science. The reproduction of the species is by the laying of fertilized eggs, which in a period of 21 days will develop a chick inside. Several methods have been descr...

Remoção endoscópica de corpo estranho ventricular em gallus gallus domesticus da raça brahma: relato de caso

Relatos de ingestão de corpos estranhos dos mais diferentes materiais são comuns em aves, especialmente nas mais jovens. Os corpos estranhos podem causar intoxicação (dependendo da composição do material) ou mesmo perfuração do canal alimentar ou obstrução gastrintestinal. Quando há suspeita d...

Mathematical models to describe the growth curves of Vietnamese Ri chicken

Braz. j. biol; 83 (), 2023
Abstract Ri chicken is the most popular backyard chicken breed in Vietnam, but little is known about the growth curve of this breed. This study compared the performances of models with three parameters (Gompertz, Brody, and Logistic) and models containing four parameters (Richards, Bridges, and Janoschek...

Use of phytase and citric acid supplementation on growth performance and nutrient digestibility of Cirrhinus mrigala fingerlings fed on canola meal based diet

Braz. j. biol; 83 (), 2023
Abstract Fishmeal; being a limited and costly feed ingredient is continuously been substituted with locally available plant proteins. However, the occurrence of anti-nutritional factors in plant meal suppresses its potential to be fully replaced. Therefore, in this study we aimed to study the synergistic...

Fungal decomposition of chicken-feather waste in submerged and solid-state fermentation

Braz. j. biol; 83 (), 2023
Abstract Poultry industry is expanding rapidly and producing million tons of feather waste annually. Massive production of keratinaceous byproducts in the form of industrial wastes throughout the world necessitates its justified utilization. Chemical treatment of keratin waste is proclaimed as an eco-des...