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Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age

100%

Ambroziak E., Rekiel A.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

2017

tom 56[1]

Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age. The aim of the experiment was to determine the effect of the birth weight of piglets on their rearing results up to 56 days of age, as expressed by growth rate and survival. Observations were made on 277 crossbred piglets from 22 litters of F1 sows (Polish Landrace ´Polish Large White) derived from crossbred boars (Duroc ´Pietrain), which were kept and fed the same way. Piglets were reared with mothers for 5 weeks and observed for 8 weeks. At 1, 7, 21 and 56 day of age, piglets were individually weighed. The body weight on day 1 of age served as a basis for dividing the piglets into groups I, II, III and IV (≤1.2; 1.21-1.39; 1.40-1.59; and ≥1.60 kg body weight, respectively). Coefficients of correlation were estimated between body weight on day 1 of age and at 7, 21 and 56 days of age, and daily gains. The mean body weight of the piglets on days 7, 21 and 56 differed between groups I, II, III and IV (P ≤0.01) and depended on the birth weight (r=+0.773, r=+0.567, r=+0.504). In the subsequent rearing periods, daily gains in groups I-IV increased and the differences between the groups showed similar relationships. Differences between groups II and III were small (P>0.05), and those between groups I and IV considerable and highly significant. With the increasing mean body weight at birth, piglet survival increased and was higher in group IV vs I by 13.64 percentage points. The birth weight ≥ 1.60 kg ensured the best growth rate and survival of the piglets.

Proba oceny wartosci odzywczej produktow spozywczych wytwarzanych w warunkach zblizonych do okresu plemiennego wczesnego sredniowiecza [VIII-X w.]

51%

Ambroziak E., Krasowska M., Polec A., Prusakowska K., Truszkowska A., Zajac M., Bialek A., Lis H., Lis P., Tokarz A.

Bromatologia i Chemia Toksykologiczna

2007

tom 40

nr 4

365-370

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Animal Science

1 Bromatologia i Chemia Toksykologiczna

2 Ambroziak E.

1 Bialek A.

1 Krasowska M.

1 Lis H.

1 Lis P.

1 Polec A.

1 Prusakowska K.

1 Rekiel A.

1 Tokarz A.

1 Truszkowska A.

1 Zajac M.

1 2017

1 2007

Wyniki wyszukiwania

Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age

Proba oceny wartosci odzywczej produktow spozywczych wytwarzanych w warunkach zblizonych do okresu plemiennego wczesnego sredniowiecza [VIII-X w.]