Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1995-10-19
|
pubmed:abstractText |
A growing-finishing study using Angus steer calves was conducted in three phases: 1) grazing stockpiled 'Kentucky-31' tall fescue (Festuca arundinacea Schreb.) with high (65%; HE KY-31) and low (0%; LE KY-31) infestation rates of Acremonium coenophialum Morgan-Jones and Gams and 'Kenhy' and 'Johnstone' tall fescue with low (< 1%) infestation rate of Acremonium coenophialum from October 24 to December 19; 2) drylot feeding of Johnstone and HE KY-31 haylage (December 19 to April 10); and 3) feedlot finishing on a common high-concentrate diet (April 11 to August 1). In Phase 1, ADG was greatest (P < .05) for Kenhy, intermediate for Johnstone and LE KY-31, and lowest (P < .05) for HE KY-31. Implantation with estradiol 17-beta increased ADG (P < .01) by 23, 27, 7, and 2% for steers grazing Johnstone, HE KY-31, LE KY-31, and Kenhy, respectively. Dry matter digestibility and DMI of stockpiled Johnstone and HE KY-31 were not different (P > .10). During Phase 2, steers consuming Johnstone haylage had greater (P < .01) DMI, ADG, and gain:feed ratio (G:F) than steers consuming HE KY-31 haylage. During Phase 3, steers previously consuming Johnstone had greater DMI (P < .10); however, steers previously fed HE KY-31 had greater ADG (P < .05) and G:F (P < .01). By the end of the study, steer body weights were not different (P > .10) between treatments. These data indicate that growth-decreasing effects of endophyte-infested fescue were evident at hypothermal-ambient temperatures.(ABSTRACT TRUNCATED AT 250 WORDS)
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0021-8812
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
73
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1576-84
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:7673051-Acremonium,
pubmed-meshheading:7673051-Animal Feed,
pubmed-meshheading:7673051-Animals,
pubmed-meshheading:7673051-Cattle,
pubmed-meshheading:7673051-Dietary Fiber,
pubmed-meshheading:7673051-Drug Implants,
pubmed-meshheading:7673051-Estradiol,
pubmed-meshheading:7673051-Male,
pubmed-meshheading:7673051-Plant Poisoning,
pubmed-meshheading:7673051-Poaceae,
pubmed-meshheading:7673051-Random Allocation,
pubmed-meshheading:7673051-Seasons,
pubmed-meshheading:7673051-Temperature
|
pubmed:year |
1995
|
pubmed:articleTitle |
Growth and subsequent feedlot performance of estradiol-implanted vs nonimplanted steers grazing fall-accumulated endophyte-infested or low-endophyte tall fescue.
|
pubmed:affiliation |
Department of Animal Sciences, University of Kentucky, Lexington 40546-0215, USA.
|
pubmed:publicationType |
Journal Article,
Comparative Study
|