47 documents found, page 1 of 5
Methane mitigation and ruminal fermentation changes in cows fed cottonseed and ...
Nogueira,Ricardo Galbiatti Sandoval; Perna Junior,Flavio; Pereira,Angélica Simone Cravo; Cassiano,Eduardo Cuellar Orlandi; Carvalho,Roberta FerreiraABSTRACT: Inherently, ruminant production of methane (CH4), a greenhouse gas (GHG), causes animal energy losses. Cottonseed is a lipid source and is used sometimes to enhance energy density in cattle diets. It also can mitigate enteric CH4. Lipids release peroxides in the rumen, and antioxidants have the ability to neutralize them. Thus, a lipid and antioxidant source can benefit rumen fermentation. The aim of ...
Short-term use of monensin and tannins as feed additives on digestibility and m...
Perna Junior,Flavio; Vásquez,Diana Carolina Zapata; Gardinal,Rodrigo; Meyer,Paula Marques; Berndt,Alexandre; Friguetto,Rosa Toyoko ShiraishiABSTRACT The objective was to assess the effects short-term use of monensin and Acacia mearnsii tannins as feed additives on nutrient intake, digestibility, and CH4 production in cattle. Six rumen-cannulated Holstein cows were distributed in two 3×3 Latin square experimental design, and each experimental period lasted 21 days. The basal diet was composed of corn silage and concentrate in a 50:50 dry matter (DM)...
Soil carbon stock and humification in pastures under different levels of intens...
Segnini,Aline; Xavier,Alfredo Augusto Pereira; Otaviani-Junior,Pedro Luis; Oliveira,Patrícia Perondi Anchão; Pedroso,André de FariaABSTRACT: Intensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pa...
Nutrient digestibility and changes in feeding behavior of cattle fed cottonseed...
Nogueira,Ricardo Galbiatti Sandoval; Perna Junior,Flavio; Pereira,Angélica Simone Cravo; Rodrigues,Paulo Henrique MazzaABSTRACT: High lipid concentration in ruminant diets often harms nutrient digestibility and feed intake; thus, a protected lipid and antioxidant source can be considered as an alternative for improving diet energy without putting animal production at a disadvantage. The aim of this study was to evaluate the dry matter intake (DMI), nutrient digestibility and feeding behavior of cattle fed cottonseed and vitamin...
Effect of chamomile extract on the welfare of laying Japanese quail
Tenório,Karine Isabela; Sgavioli,Sarah; Roriz,Beatriz Cardoso; Ayala,Cristina Martinez; Santos,Wellington dos; Rodrigues,Paulo Henrique MazzaABSTRACT The objective of this study was to evaluate the effect of chamomile extract on Japanese quail on their performance, animal behavior, tonic immobility, body injuries, and surface temperature. The trial was conducted using 108 quail distributed in a completely randomized experimental design, with three treatments (0, 2.5, and 5.0 g chamomile/kg of feed), six replicates, and six birds per treatment, evalu...
Slow-release urea in supplement fed to beef steers
Gonçalves,Ana Paula; Nascimento,Carolina Fernanda Moysés do; Ferreira,Fernanda Altieri; Gomes,Rodrigo da Costa; Manella,Marcelo de QueirozReplacing regular urea (RU) by slow-release urea (SRU) at two levels of non-protein nitrogen (NPN) in concentrate, offered with low-quality roughage, was evaluated in beef steers on dry matter intake (DMI), ruminal fermentation parameters, plasma urea nitrogen (PUN), total tract apparent digestibility of diets and in situ degradability of nitrogen sources. Eight ruminally cannulated steers were allocated into t...
Características fermentativas de silagens de cana-de-açúcar com erva-sal
Silva,José Gledyson da; Queiroz,Mário Adriano Ávila; Araujo,Gherman Garcia Leal; Silva,Bruno Gonçalves da; Cunha,José Aparecido daObjetivou-se com o presente estudo avaliar diferentes níveis (0, 20, 40 e 60%) de inclusão de erva-sal na dinâmica fermentativa da silagem de cana-de-açúcar. Utilizou-se delineamento experimental inteiramente casualizado com quatro tratamentos e seis repetições. Após 90 dias, com a abertura dos silos, determinou-se os teores de carboidratos solúveis (CHO-Sol), etanol, ácidos orgânicos (lático, acético, propiôni...
Metabolic profile and ruminal and abomasal pH in sheep subjected to intravenous...
Morgado,Aline Alberti; Nunes,Giovanna Rocha; Martins,André Storti; Hagen,Stefano Carlo Filippo; Rodrigues,Paulo Henrique MazzaResumo: Brazilian sheep production has intensified, predisposing sheep to an increased incidence of digestive disorders, such as abomasal ulcers. Ranitidine is used to prevent and treat this disease; however, there is little information on the parenteral use of this drug in adult ruminants. Few data exist on the concomitant metabolic changes and the behavior of the digestive system associated with its use. For ...
Rumen microbial diversity under influence of a polyclonal antibody preparation ...
Otero,Walter Guimarães; Marino,Carolina Tobias; Barreto,Cristine Chaves; Pellizari,Vivian Helena; Millen,Danilo DominguesNine ruminally cannulated cows fed different energy sources were used to evaluate an avianderived polyclonal antibody preparation against specific ruminal bacteria and monensin on microbial community diversity. The experimental design was three Latin squares 3 x 3 distinguished by the main energy source in the diet [dry-ground corn grain, high moisture corn silage or citrus pulp]. Inside each Latin square, anim...
Validação de modelos de predição das concentrações de nitrogênio ureico no leit...
Meyer,Paula Marques; Machado,Paulo Fernando; Coldebella,Arlei; Cassoli,Laerte Dagher; Coelho,Karyne Oliveira; Rodrigues,Paulo Henrique MazzaObjetivou-se, no presente trabalho, validar modelos de predição de nitrogênio ureico no leite no intuito de contribuir para avaliação da adequação nutricional de dietas de rebanhos de vacas leiteiras. Foram utilizadas 8.833 observações de vacas da raça Holandesa de um rebanho comercial, registraram-se produção de leite, peso corporal, número de dias em lactação e número de lactações. Dos dados coletados, foram ...