Results 41 to 50 of about 36,664 (253)

SUSCEPTIBILIDADE DE BOVINOS DAS RAÇAS JERSEY E GIR À ACIDOSE LÁCTICA RUMINAL: I - VARIÁVEIS RUMINAIS E FECAIS

open access: yesCiência Rural, 2002
Quatro garrotes Jersey (J) (Bos taurus) e quatro Gir (G) (Bos indicus), providos de cânula ruminal, foram utilizados para comparar a susceptibilidade à acidose láctica ruminal (ALR) aguda.
Maruta Celso Akio, Ortolani Enrico Lippi
doaj   +2 more sources

Rumen Bacteria Communities and Performances of Fattening Lambs with a Lower or Greater Subacute Ruminal Acidosis Risk

open access: yesFrontiers in Microbiology, 2017
Several ruminal cellulolytic bacteria species are sensitive to pH and could therefore be used as biomarkers to determine the risk of sub-acute ruminal acidosis (SARA) in finishing lambs.
Fei Li   +8 more
doaj   +1 more source

Prior Forage Type Influences Ruminal Responses to a Wheat Grain Challenge in Lactating Dairy Cows

open access: yesAnimals, 2021
To increase the dry matter and metabolisable energy intake of cows, dairy farmers often supplement pasture with concentrates and conserved fodder. Feeding large amounts of highly fermentable concentrates to cows can result in metabolic issues, such as ...
Victoria M. Russo   +6 more
doaj   +1 more source

Desempenho e parâmetros nutricionais de fêmeas leiteiras em crescimento alimentadas com silagem de milho ou cana-de-açúcar com concentrado Performance and nutritional parameters of growing heifers fed corn silage or sugar cane with concentrate

open access: yesRevista Brasileira de Zootecnia, 2010
Avaliou-se a resposta de novilhas leiteiras alimentadas com dieta à base de silagem de milho e com 1,3 kg/dia de concentrado em comparação a três dietas à base de cana-de-açúcar corrigida com 1% de ureia + sulfato de amônio (9:1) (ureia), com 1,3; 2,0 e ...
Adriano Henrique do Nascimento Rangel   +5 more
doaj   +1 more source

Pathophysiological evaluation of subacute ruminal acidosis (SARA) by continuous ruminal pH monitoring

open access: yesAnimal Science Journal, 2015
AbstractEvaluation of the radio‐transmission pH‐measurement system for monitoring the ruminal pH and subacute ruminal acidosis (SARA) in cattle is described. This is done in order to reveal the possible application of this system for detection and pathophysiological research of SARA by continuous ruminal pH measurement.
openaire   +2 more sources

Ability of pH-Selected Mixed Ruminal Microbial Populations to Digest Fiber at Various pHs [PDF]

open access: yesApplied and Environmental Microbiology, 1986
Inocula from pH 5.5-selected rumen microorganisms failed to digest fiber any better in batch culture at pH 5.0 or 5.5 than did inocula from pH 6.5-selected organisms. Furthermore, upon extended batch incubation, both the viable cellulolytic and amylolytic bacteria became increasingly associated with the fiber portion and less with the liquid portion of
openaire   +2 more sources

Effects of induced acidosis on milk fat content and milk fatty acids profile [PDF]

open access: yes, 2006
Objective: The effect of wheat percentage in diets offered to lactating cows on variations of milk fat content and profile of milk fatty acids (FA) was studied, focusing on odd-chain FA and trans intermediates of ruminal biohydrogenation.
Enjalbert, Francis   +2 more
core  

Overview of Encapsulated Lysine and Methionine and Their Impacts on Transition Cow Performance and Health

open access: yesAnimal Research and One Health, EarlyView.
The transition period in dairy cows, spanning 3 weeks before and after calving, is a critical phase characterized by increased nutrient demands, reduced dry matter intake (DMI), and elevated risk of metabolic disorders such as negative nutrient balance (NNB), lipolysis, proteolysis, and oxidative stress.
Mohammed S. Seleem   +5 more
wiley   +1 more source

Manipulation of Ruminal Fermentation IV. Effect of Altering Ruminal pH on Volatile Fatty Acid Production

open access: yesJournal of Dairy Science, 1972
Abstract The effect of altering ruminal pH on volatile fatty acid production in vitro or volatile acid concentration in vivo was investigated. In Experiment 1 three lactating Holstein cows fitted with ruminal cannulae were fed a high-concentrate, restricted roughage ration.
W J, Esdale, L D, Satter
openaire   +2 more sources

Influence of Wheat Straw Pelletizing and Inclusion Rate in Dry Rolled or Steam-flaked Corn-based Finishing Diets on Characteristics of Digestion for Feedlot Cattle. [PDF]

open access: yes, 2016
Eight Holstein steers (216±48 kg body weight) fitted with ruminal and duodenal cannulas were used to evaluate effects of wheat straw processing (ground vs pelleted) at two straw inclusion rates (7% and 14%; dry matter basis) in dry rolled or steam-flaked
Calderon, JF   +9 more
core  

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