Wyniki produkcyjne oraz poziom wskaznikow metaboliczno-hormonalnych w kompensacyjnym tuczu swin

• Autorzy: Wiecek J , Rekiel A. , Skomial J.

Warianty tytułu

EN

Production results and the level of metabolic-hormonal rates in compensatory fattening of pigs

• Języki publikacji: PL

Abstrakty

EN

The aim of the research was to determine the influence of a mixture enriched by linseed oil, after a restricted feeding period, on production results and the concentration of selected hormones (GH, TSH, T₃, T₄, insulin) as well as protein-lipid transformation indicators (TP, ALB, GLU, BUN, TG, CH) in fatteners. The experimental fattening was carried out on 56 fatteners (Polish Large White x Polish Landrace x Duroc) (gilts : barrows, 1 : 1). In the first stage of fattening (23-60 kg of body weight) the animals were fed semi ad libitum or restrictively (less by 25%) on feeds without the linseed oil supplement. In the second fattening stage (60-102 kg of body weight) all the animals were fed semi ad libitum on mixtures with 0 or 4% share of linseed oil. Restricted feeding in the first fattening stage caused a reduction of growth rate (p ≤ 0.001) as well as changes in hormonal management, i.e. the increase of GH and decrease of T4 and insulin. The level of protein-lipid transformation indicators decreased, including total cholesterol and its LDL fraction, which decreased high-significantly (p ≤ 0.01). The increase in the feeding level during the second fattening stage led to hormonal "normalisation", and a small compensatory growth was found only in animals receiving the feed with oil. The linseed oil supplement to the feed sped up the growth rate of the swines (p ≤ 0.05), which was connected with changes of some hormone levels (T₃, T₄, insulin) as well as protein-lipid transformation indicators (TP, ALB, TG).

Słowa kluczowe

PL

olej lniany; wyniki produkcyjne; masa ciala; dodatki paszowe; pobranie paszy; wskazniki biochemiczne; tyroksyna; pasze; tyreotropina; trzoda chlewna; hormony wzrostu; badania krwi; wzrost kompensacyjny; tucz; poziom hormonow; zywienie ograniczone; insulina; tuczniki

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2008
• Tom: 64
• Numer: 11
• Opis fizyczny: s.1320-1323,tab.,bibliogr.

Twórcy

autor

Wiecek J

• Szkola Glowna Gospodarstwa Wiejskiego, ul.Ciszewskiego 8, 02-786 Warszawa

autor

Rekiel A.

autor

Skomial J.

Bibliografia

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