نتایج جستجو برای: domestic ruminant
تعداد نتایج: 71875 فیلتر نتایج به سال:
The association between bovine spongiform encephalopathy (BSE) and variant Creutzfeldt-Jakob disease (vCJD) has demonstrated that cattle transmissible spongiform encephalopathies (TSEs) can pose a risk to human health and raises the possibility that other ruminant TSEs may be transmissible to humans. In recent years, several novel TSEs in sheep, cattle and deer have been described and the risk ...
J. Anim. Sci. Vol. 88, E-Suppl. 2/J. Dairy Sci. Vol. 93, E-Suppl. 1/Poult. Sci. Vol. 89, E-Suppl. 1 W336 The influence of lipidic sources on the cholesterol plasma levels of beef heifers. M. C. A. Santana*1, T. T. Berchielli1, R. A. Reis1, G. M. P. Melo2, and P. H. M. Dian2, 1São Paulo State University, Jaboticabal, São Paulo, Brazil, 2Camilo Castelo Branco University, Descalvado, São Paulo, Br...
Increased milk production requires high intakes of crude protein in the diet, and/or improved supply and ratios of amino acids delivered to the duodenum to meet animal needs for milk and milk component synthesis. Our objective was to estimate the rumen escape potential of a ruminally protected Lys product (RPL) and to determine effects of feeding this product on feed intake and digestibility, a...
A morphological or physiological trait may appear multiple times in evolution. At the molecular level, similar protein functions may emerge independently in different lineages. Whether these parallel functional changes are due to parallel amino acid substitutions has been a subject of debate. Here, I address this question using digestive ribonucleases (RNases) of two groups of foregut-fermentin...
results the results showed that the chimeric recombinant protein induced strong humoral response as well as protection against live oral challenges using e. coli o157:h7. conclusions the rit could reduce bacterial shedding effectively. objectives the eae gene encoded intimin protein which is essential for colonization of the mucosa and a/e lesions formation by docking to the tir. materials and ...
Agriculture is the largest source of methane globally, and enteric accounts for 32% emissions globally. Dairy–beef an increasingly important contributor to beef industry. The objective this study was investigate if supplementation with a blend essential oils (Agolin Ruminant) reduced from dairy-bred steers. Methane measured thirty-six Holstein Friesian steers (18 control 18 treatment) in open-c...
Chicory (Chicorum intybus) is becoming popular as a warm-season forage for ruminant livestock in the United States. A study was conducted with weaned crossbred meat goats to elucidate how growing / finishing meat goats grazing Joy chicory pasture respond to supplementation with varying levels of dietary protein. Thirty 6 weaned crossbred kids (26 ± 3 kg) were blocked by body weight and genotype...
The aim of this experiment was to determine the effects of conjugated linoleic acid (CLA) on milk production and composition, and milk fatty acid profile of dairy Holstein cows. Three lactating Holstein cows (203 ± 9 DIM; mean ± SD) fitted with rumen fistula were used in a 3 × 3 Latin square experiment with 21-d periods, including a 14-d adaptation period followed by a 7-d sampling period. Trea...
ferent among treatments. Protozoal counts were not different among treatments (P > 0.05) in ruminal or omasal samples. Generic protozoal counts were not different (P > 0.05) among treatments, corresponding with similar banding profiles from DGGE. Multivariate statistics showed no difference (P > 0.05) in generic distribution of protozoa in ruminal vs. omasal samples, supporting absence of selec...
-promoters include control of zoonotic pathogens i. Antibiotic growth promoters enhance the efficiency of nutrient resistance in pathogenic bacteria and it has -promoters imposes a selection pressure for bacteria that are resistant to continued use of antimicrobial
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