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Titolo:
Concentrations of gonadotropins, estradiol and progesterone in sows selected on an index of ovulation rate and embryo survival
Autore:
Mariscal, DV; Bergfeld, EGM; Cupp, AS; Kojima, FN; Fike, KE; Sanchez, T; Wehrman, ME; Johnson, RK; Kittok, RJ; Ford, JJ; Kinder, JE;
Indirizzi:
Univ Nebraska, Dept Anim Sci, Inst Agr & Nat Res, Lincoln, NE 68583 USA Univ Nebraska Lincoln NE USA 68583 t Agr & Nat Res, Lincoln, NE 68583 USA USDA,3ARS, Clay Ctr, Roman L Hruska US Meat Anim Res Ctr, Clay Ctr, NE 6893 USDA Clay Ctr NE USA 68933 Hruska US Meat Anim Res Ctr, Clay Ctr, NE 6893
Titolo Testata:
ANIMAL REPRODUCTION SCIENCE
fascicolo: 1, volume: 54, anno: 1998,
pagine: 31 - 43
SICI:
0378-4320(199812)54:1<31:COGEAP>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
PORCINE FOLLICULAR-FLUID; PERIOVULATORY PERIOD; LUTEINIZING-HORMONE; ESTROUS-CYCLE; LITTER SIZE; PLASMA; SWINE; GILTS; MEISHAN; PIGS;
Keywords:
pig; ovary; ovulation; LH; FSH; estradiol; estrous cycle;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Kinder, JE Univ Nebraska, Dept Anim Sci, Inst Agr & Nat Res, 224J,POB 830908, Lincoln, Univ Nebraska 224J,POB 830908 Lincoln NE USA 68583 08, Lincoln,
Citazione:
D.V. Mariscal et al., "Concentrations of gonadotropins, estradiol and progesterone in sows selected on an index of ovulation rate and embryo survival", ANIM REPROD, 54(1), 1998, pp. 31-43

Abstract

The objective of this study was to determine concentrations of follicle stimulating hormone (FSH), luteinizing hormone (LH), progesterone (P-4) and 17 beta-esuadiol (E-2) in sows from a line selected on an index which emphasized ovulation rate (Select) and from a control Line. A further classification of the sows in each line was made according to the estimated number of ovulations during an estrous cycle. Sows in the Select line were ranked into a high (HI) or low group (LI) when their estimated number of ovulations were 25 or more and 14 to 15, respectively. Sows of the control line were classified into groups as high (HC) or low (LC) when the estimated values forovulation rate were 14-15 and 8-9 ovulations, respectively. Bleed samples were collected every 11 h during a complete estrous cycle and samples were analyzed for concentrations of FSH and LH. Samples collected every 24 h were assayed for P-4 and E-2, Mean concentrations of FSH, LH, P-4 and E-2 did not differ (P > 0.10) between lines or between HI and LI or HC and LC groups. Selection of pigs for ovulation rate and embryonal survival did not affect concentrations of FSH, LH, P-4 and E-2 in sows during the estrous cycle. (C) 1998 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 07:42:49