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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
7
|
| pubmed:dateCreated |
1995-11-30
|
| pubmed:abstractText |
Two experiments were conducted to evaluate the effects of dietary fat supplementation and a synthetic progestogen on metabolic hormone patterns and(or) in vitro and in vivo characteristics of induced corpora lutea (CL) in undernourished, post-partum beef cows. Metabolizable energy intake was restricted in all cows in both experiments before calving to achieve a body condition (BC) score of 4 (thin), with cows fed to maintain BW and condition after calving. In Exp. 1, 16 cows were fed isocaloric and isonitrogenous diets after calving with either no added fat (NL, n = 8) or added fat (HL, n = 8; .374 kg of fat/500 kg BW). In Exp. 2, 32 pluriparous cows that had reached targeted body condition were divided randomly at calving into a 2 x 2 factorial treatment arrangement: 1) HL-no implant; HL-CON, 2) HL-norgestomet implant d 14 to 21; HL-NORG, 3) NL-CON and, 4) NL-NORG. Forty-eight-hour calf removal on d 21 and GnRH on d 23 were used to induce CL. The HL diet increased (P < .03) serum growth hormone (GH) concentrations, changed the puerperal pattern of serum insulin from cubic (P < .05) to linear (P < .05), and increased (P < .01) the in vitro production of IGF-I by luteal tissue (Exp. 1). In Exp. 2, both HL diets and NORG treatments (HL-NORG, HL-CON, NL NORG) tended to promote an increased (P < .09) frequency of luteal activity after GnRH, but only HL-CON and NL-NORG enhanced (P < .04) luteal lifespan.(ABSTRACT TRUNCATED AT 250 WORDS)
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cholesterol,
http://linkedlifedata.com/resource/pubmed/chemical/Dietary Fats,
http://linkedlifedata.com/resource/pubmed/chemical/Drug Implants,
http://linkedlifedata.com/resource/pubmed/chemical/Growth Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Insulin,
http://linkedlifedata.com/resource/pubmed/chemical/Pregnenediones,
http://linkedlifedata.com/resource/pubmed/chemical/Progesterone Congeners,
http://linkedlifedata.com/resource/pubmed/chemical/norgestomet
|
| pubmed:status |
MEDLINE
|
| pubmed:month |
Jul
|
| pubmed:issn |
0021-8812
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
73
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
2086-93
|
| pubmed:dateRevised |
2011-11-17
|
| pubmed:meshHeading |
pubmed-meshheading:7592095-Animals,
pubmed-meshheading:7592095-Cattle,
pubmed-meshheading:7592095-Cattle Diseases,
pubmed-meshheading:7592095-Cholesterol,
pubmed-meshheading:7592095-Dietary Fats,
pubmed-meshheading:7592095-Drug Implants,
pubmed-meshheading:7592095-Estrus,
pubmed-meshheading:7592095-Female,
pubmed-meshheading:7592095-Food-Drug Interactions,
pubmed-meshheading:7592095-Growth Hormone,
pubmed-meshheading:7592095-Insulin,
pubmed-meshheading:7592095-Luteal Phase,
pubmed-meshheading:7592095-Nutrition Disorders,
pubmed-meshheading:7592095-Ovulation,
pubmed-meshheading:7592095-Ovulation Induction,
pubmed-meshheading:7592095-Postpartum Period,
pubmed-meshheading:7592095-Pregnenediones,
pubmed-meshheading:7592095-Progesterone Congeners,
pubmed-meshheading:7592095-Random Allocation
|
| pubmed:year |
1995
|
| pubmed:articleTitle |
Metabolic and luteal sequelae to heightened dietary fat intake in undernourished, anestrous beef cows induced to ovulate.
|
| pubmed:affiliation |
Animal Reproduction Laboratory, Texas A&M University Agricultural Research Station, Beeville 78102, USA.
|
| pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|