نتایج جستجو برای: rumen function

تعداد نتایج: 1223510  

2016
Weimin Wang Chong Li Fadi Li Xiaojuan Wang Xiaoxue Zhang Ting Liu Fang Nian Xiangpeng Yue Fei Li Xiangyu Pan Yongfu La Futao Mo Fangbin Wang Baosheng Li

Early consumption of starter feed promotes rumen development in lambs. We examined rumen development in lambs fed starter feed for 5 weeks using histological and biochemical analyses and by performing high-throughput sequencing in rumen tissues. Additionally, rumen contents of starter feed-fed lambs were compared to those of breast milk-fed controls. Our physiological and biochemical findings r...

2016
Alejandro Belanche Alison H. Kingston-Smith Charles J. Newbold

Rumen function is generally suboptimal leading to losses in methane and nitrogen. Analysis of the rumen microbiome is thus important to understanding the underlying microbial activity under different feeding strategies. This study investigated the effect of forage conservation method and vitamin E supplementation on rumen function using a rumen simulation technique. Ryegrass (GRA) or ryegrass h...

1999
S. H. BIRD

The manipulation of rumen function through the removal of the ciliate protozoa has not resulted in consistent changes in ruminant production. Current research findings are discussed with particular emphasis given to the role of protozoa in fibre digestion in the rumen and the availability of protein for intestinal digestion. Dietary conditions under which positive responses to defaunation can b...

Journal: :Animal : an international journal of animal bioscience 2007
S Sadet C Martin B Meunier D P Morgavi

Bacteria attached to the rumen epithelium (or epimural community) are not well characterised and their role in rumen functioning is not totally understood. There is just one published report of a clone library from one cow that suggests that this epimural community differs from the bacteria associated with the rumen digestive contents. However, this time-consuming approach is not adapted for ex...

2018
Mi Zhou Martin Hünerberg Yanhong Chen Tim Reuter Tim A. McAllister Franklin Evans Alan T. Critchley Le Luo Guan

The use of Tasco (air-dried Ascophyllum nodosum) as a feed supplement for ruminants has been reported to affect rumen fermentation and reduce Escherichia coli O157:H7 shedding in feces, but the mode of action behind this phenomenon is unclear. In this study, the effects of four Tasco levels (0, 1, 3, and 5%) on rumen microbiota and rumen/fecal E. coli O serogroups in rams were investigated. Rum...

2013
Manfred Hollmann Ingrid Miller Karin Hummel Sonja Sabitzer Barbara U. Metzler-Zebeli Ebrahim Razzazi-Fazeli Qendrim Zebeli

Energy-rich diets can challenge metabolic and protective functions of the rumen epithelial cells, but the underlying factors are unclear. This study sought to evaluate proteomic changes of the rumen epithelium in goats fed a low, medium, or high energy diet. Expression of protein changes were compared by two-dimensional differential gel electrophoresis followed by protein identification with ma...

2016
G. Jayaprakash M. Sathiyabarathi M. Arokia Robert T. Tamilmani

Choline is a vitamin-like substance it has multi-function in animal production, reproduction, and health. The transition period is most crucial stage in lactation cycle of dairy cows due to its association with negative hormonal and energy balances. Unfortunately, unprotected choline easily degrades in the rumen; therefore, choline added to the diet in a rumen-protected form. The use of rumen-p...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2005
G S Stewart C Graham S Cattell T P L Smith N L Simmons C P Smith

The UT-A (SLC14a2) and UT-B (SLC14a1) genes encode a family of specialized urea transporter proteins that regulate urea movement across plasma membranes. In this report, we describe the structure of the bovine UT-B (bUT-B) gene and characterize UT-B expression in bovine rumen. Northern analysis using a full-length bUT-B probe detected a 3.7-kb UT-B signal in rumen. RT-PCR of bovine mRNA reveale...

2018
Evelyne Mann Stefanie U. Wetzels Martin Wagner Qendrim Zebeli Stephan Schmitz-Esser

Microbiota of the rumen wall constitute an important niche of rumen microbial ecology and their composition has been elucidated in different ruminants during the last years. However, the knowledge about the function of rumen wall microbes is still limited. Rumen wall biopsies were taken from three fistulated dairy cows under a standard forage-based diet and after 4 weeks of high concentrate fee...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید