نتایج جستجو برای: ruminal parameters

تعداد نتایج: 584118  

Journal: :Revista Brasileira De Zootecnia 2021

The objective of this study was to evaluate the intake and ruminal parameters goats fed diets supplemented with vegetable oils. Four rumen-cannulated Saanen were allocated four treatments, which consisted a control diet inclusion 30 g canola, sunflower, or soybean oils per kilogram dry matter (DM). experiment lasted 40 days, divided into 10-day periods. Forage estimated using chromium oxide as ...

Journal: :Journal of animal science 1991
H Xiao R R Marquardt A A Frohlich G D Phillips T G Vitti

The hydrolysis of ochratoxin A (OA) and the corresponding formation of its hydrolysis product, alpha ochratoxin (O alpha), by ruminal digesta and in the rumen of hay-fed and grain-fed sheep were compared. Ruminal contents from sheep fed diets with hay or with grain hydrolyzed OA in vitro; the majority of the activity was associated with the particulate fraction of the ruminal contents. The rate...

Journal: :Journal of dairy science 1997
R D Shaver

The transition period occurring 2 wk prepartum through 2 to 4 wk postpartum is the major risk period in the etiology of left displaced abomasum. The prepartum depression of intake and the slow postpartum increase in intake are risk factors causing lower ruminal fill, reduced forage to concentrate ratio, and increased incidence of other postpartum disorders. Uncomplicated ketosis, retained place...

2011

and Implications Ruminal hydrogen sulfide concentrations may be a useful tool to determine risk of cattle developing sulfurinduced polioencephalomalacia. In this study, steers were fed a low sulfur (0.2% S) or a high sulfur diet (0.7% S) and ruminal hydrogen sulfide concentrations were measured. Although differences in ruminal hydrogen sulfide due to sulfur intake were maintained throughout the...

Journal: :Journal of animal science 1986
J L Firkins L L Berger N R Merchen G C Fahey

A 2(3) factorial arrangement of treatments was used to study main effects and interactions between particle size of prairie hay (chopped vs ground), two levels of feed intake (60 and 90% of ad libitum) and ruminal degradability of protein sources [dry corn gluten feed (DCGF) vs dry distillers grains (DDG)] on ruminal and total tract digestion in eight ruminal- and duodenal-cannulated steers. St...

Journal: :Journal of dairy science 2006
B C Benefield M Liñeiro I R Ipharraguerre J H Clark

Twenty multiparous Holstein cows, 4 of them surgically fitted with ruminal cannulas, were used in a replicated 4 x 4 Latin square to compare the effects of whole-plant silage and grain produced from NutriDense (ND), leafy NutriDense (LND), or a conventional yellow dent (YD) hybrid on ruminal fermentation, total tract nutrient digestibility, and performance of lactating dairy cows. On a DM basis...

2017
P. Chen P. Ji Z. J. Cao S. L. Li

Four ruminally cannulated Holstein cows were used in a 4 × 4 Latin square design to determine the effect of feeding linted, delinted and extruded linted whole cottonseed (WCS) on nutrient digestibility and ruminal fermentation. Result showed that crude protein digestibility was lower in linted and delinted WCS treatments than control and extruded linted WCS treatment. Cows fed extruded delinted...

Journal: :iranian journal of applied animal science 2015
r. postulka p. dolezal j. pelikan d. knotova

the aim of the experiment was to determine the effect of different dry matter content and addition of silage inoculant on the ruminal protein degradability. alfalfa herbage was collected from two cuts and the fresh matter was sampled two times during each cut (with different dry matter content). during the preparation of experimental micro-silages, the chopped forage was treated with a microbia...

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