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Titolo:
Profiles of growth hormone and insulin secretion, and glucose response to insulin in growing Japanese Black heifers (beef type): comparison with Holstein heifers (dairy type)
Autore:
Shingu, H; Hodate, K; Kushibiki, S; Ueda, Y; Watanabe, A; Shinoda, M; Matsumoto, M;
Indirizzi:
Natl Agr Res Ctr, Dept anim Prod & Grasslands Farming, Morioka, Iwate 0200198, Japan Natl Agr Res Ctr Morioka Iwate Japan 0200198 orioka, Iwate 0200198, Japan Natl Inst Livestock & Grassland Sci, Dept Anim Physiol & Nutr, Tsukuba, Ibaraki 3050901, Japan Natl Inst Livestock & Grassland Sci Tsukuba Ibaraki Japan 3050901 , Japan
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
fascicolo: 2, volume: 130, anno: 2001,
pagine: 259 - 270
SICI:
1532-0456(200110)130:2<259:POGHAI>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLASMA-INSULIN; CARCASS CHARACTERISTICS; HEAT EXPOSURE; YOUNG BULLS; GLUCAGON; STEERS; PERFORMANCE; METABOLITES; INJECTION; PROLACTIN;
Keywords:
age; breed; comparison; glucose; growth hormone; heifer; Holstein; insulin; Japanese black;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Shingu, H Natl Agr Res Ctr, Dept anim Prod & Grasslands Farming, Tohoku Reg, Morioka, Iwate 0200198, Japan Natl Agr Res Ctr Tohoku Reg Morioka Iwate Japan 0200198 8, Japan
Citazione:
H. Shingu et al., "Profiles of growth hormone and insulin secretion, and glucose response to insulin in growing Japanese Black heifers (beef type): comparison with Holstein heifers (dairy type)", COMP BIOC C, 130(2), 2001, pp. 259-270

Abstract

Nine Japanese Black and 10 Holstein heifers ranging from 1 week (wk) to 18months (mo) old received a single bolus intravenous injection of GH-releasing factor (GRF, 0.25- mug/kg BW), glucose (112.5-mg/kg BW) or insulin (0.2-U/kg BW) at various stages through 18 mo of age. The GH secretory responseto exogenous GRIT in Japanese Black heifers was lower than that in Holstein heifers at all stages of growth. While insulin secretory function was notvery different in both breeds from 1 to 12 mo of age, the insulin responsewas much higher in Japanese Black heifers than in Holstein heifers after sexual maturation. The degree of decrease in plasma glucose following insulin injection was similar in both breeds at each stage of growth. It is concluded that compared with Holstein heifers, Japanese Black heifers have lowerGH and higher insulin secretory functions, and that the two breeds have similar glucose response to insulin. (C) 2001 Elsevier Science Inc. 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 09:22:28