Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ronald J Trotta"'
Publikováno v:
PLoS ONE, Vol 19, Iss 8, p e0308983 (2024)
We previously demonstrated that postruminal casein infusion and exogenous glucagon-like peptide 2 (GLP-2) administration independently stimulated growth and carbohydrase activity of the pancreas and jejunal mucosa in cattle. The objective of the curr
Externí odkaz:
https://doaj.org/article/aa174b6209cc41ecb18b573bd04ed08f
Publikováno v:
Animals, Vol 13, Iss 14, p 2308 (2023)
Four experiments were conducted to evaluate sources of anti-coccidial compounds and phytogenic saponin extracts on in vitro and in vivo ruminal fermentation and CH4 production at multiple inclusion levels. In experiment 1, eight steers were fed eithe
Externí odkaz:
https://doaj.org/article/0bfc6c6fd2284b9e88b337f67c294e5f
Autor:
Ronald J. Trotta, Kendall C. Swanson
Publikováno v:
Animals, Vol 11, Iss 1, p 171 (2021)
In ruminant livestock species, nutrition can play an important role in the long-term programming of gastrointestinal function. Pancreatic and small intestinal digestive enzymes are important for postruminal digestion of carbohydrates and protein. Car
Externí odkaz:
https://doaj.org/article/73a66990b4624ce58d611c65a83fd5ab
Publikováno v:
Journal of Animal Science. 101
Grain processing such as particle size, flake density, or starch retrogradation can influence ruminal degradability characteristics; however, it is unclear how exogenous α-amylase supplementation interacts with different processed grains. Four exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c263eb7d8f85c992542a6084a39fa055
https://doi.org/10.1093/jas/skad031
https://doi.org/10.1093/jas/skad031
Publikováno v:
Journal of Animal Science. 101
Ergovaline (ERV), produced in toxic endophyte-infected tall fescue, causes potent vasoconstriction of bovine peripheral and visceral vasculature. Ergovaline acts as both an agonist and an antagonist in bovine gut blood vessels through serotonin (5-HT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9982f867ede338d0def4f763196a16c
https://doi.org/10.1093/jas/skad100
https://doi.org/10.1093/jas/skad100
Publikováno v:
Ruminants. 2:1-26
Increased efficiency of nutrient utilization can potentially be gained with increased starch digestion in the small intestine in ruminants. However, ruminants have quantitative limits in the extent of starch disappearance in the small intestine. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9d5e612722c5e49fbad30eb54aa4f58
https://doi.org/10.3390/ruminants2010001
https://doi.org/10.3390/ruminants2010001
Publikováno v:
Translational Animal Science. 6
To test the hypothesis that average daily gain (ADG) and clinical parameters of steers grazing novel non-toxic (NTE) or toxic KY-31 (TE) endophyte-infected tall fescue would be improved by ad libitum intake of vitamin-mineral mixes (V-M) that contain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46b00038fe5a7f246a5a5d8f1600c65d
https://doi.org/10.1093/tas/txac122
https://doi.org/10.1093/tas/txac122
Publikováno v:
Canadian Journal of Animal Science. 101:191-195
Sixty-nine finishing steers were randomly assigned to one of two treatment groups: supplementation to provide 0 or 267 mg·d−1 of ractopamine hydrochloride (RAC) for 42 d. Twelve steers were slaughtered for tissue and blood collection. Final body w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f545581484467bf47ba86e5610180e10
https://doi.org/10.1139/cjas-2020-0092
https://doi.org/10.1139/cjas-2020-0092
Publikováno v:
Journal of Dairy Science. 103:10060-10073
The hypothesis of this experiment was that dietary fructose would influence visceral organ mass, carbohydrase activity, and mRNA expression of carbohydrases and nutrient transporters in the small intestine in neonatal calves. Therefore, our objective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d686f1e82ef31bc69d4ceac7ac35abf
https://doi.org/10.3168/jds.2020-18145
https://doi.org/10.3168/jds.2020-18145
Autor:
Ronald J Trotta, Kendall C Swanson
Publikováno v:
Canadian Journal of Animal Science. 100:244-252
Two ruminally cannulated steers [928 ± 25.5 kg body weight (BW)] were fed alfalfa hay at 2.0% of BW and served as donors of rumen fluid. Treatments were early-bud alfalfa (CON) or a combination [dry matter (DM) basis] of 80% early-bud alfalfa with 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eda819561f932937b18cdcb333222c21
https://doi.org/10.1139/cjas-2019-0105
https://doi.org/10.1139/cjas-2019-0105