نتایج جستجو برای: ruminant
تعداد نتایج: 4356 فیلتر نتایج به سال:
Understanding of ruminant placental structure and function is essential for veterinarians and researchers. The ruminant placenta is classified as cotyledonary and synepitheliochorial on the bases of its gross anatomical features and histological characteristics respectively. The richly vascularized embryonic chorioallantois is lined on its outer surface by cells of the trophectodermal epitheliu...
Ruminant animals contribute significantly to the global value of agriculture and rely on a complex microbial community for efficient digestion. However, little is known of how this microbial-host relationship develops and is maintained. To begin to address this, we have determined the ability of three Bifidobacterium species isolated from the faeces of newborn calves to grow on carbohydrates ty...
implications of certain ruminant TFAs. In particular, moderate consumption of ruminant TFAs was not associated with a significant increase in cardiovascular risk, although further studies are needed to understand the implications of various TFA isomers. In addition, certain ruminant TFAs, including vaccenic acid and C9,T11-CLA, have been shown to have cancer-protective factors in animal models,...
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...
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...
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