Relations among ewes? nutritional status at mating and their subsequent reproductive performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F15%3A67861" target="_blank" >RIV/60460709:41210/15:67861 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Relations among ewes? nutritional status at mating and their subsequent reproductive performance

Popis výsledku v původním jazyce

The aim of study was to determine relations among ewe?s live weight (LW, kg), body condition (BCS) or backfat thickness (BT, mm) at mating, and lambing rate (LR, %), litter size (LS, lambs) or total litter weight at birth (TLWB, kg) by correlation analysis. The number of 608 Suffolk ewes bred in 4 flocks was observed during a 2 year period. Ewes were weighed and their BCS or BT was evaluated subjectively or by ultrasound at the beginning of the mating period. Directly after lambing, the lambs (n = 930)were weighed and basic reproductive traits were assessed: LR, LS and TLWB. Statistical analysis was performed using SAS 9.3., CORR procedure. LW was correlated with all the reproductive traits (r = 0.211 to 0.247; p < 0.01). BCS did not correspond significantly to LR or LS traits, but it correlated signifi- cantly to TLWB (r = 0.101; p < 0.05). There was no significant correlation between BT and LR, while significant correlations (p < 0.01) were detected between BT and LS (r = 0.125) as

Název v anglickém jazyce

Relations among ewes? nutritional status at mating and their subsequent reproductive performance

Popis výsledku anglicky

The aim of study was to determine relations among ewe?s live weight (LW, kg), body condition (BCS) or backfat thickness (BT, mm) at mating, and lambing rate (LR, %), litter size (LS, lambs) or total litter weight at birth (TLWB, kg) by correlation analysis. The number of 608 Suffolk ewes bred in 4 flocks was observed during a 2 year period. Ewes were weighed and their BCS or BT was evaluated subjectively or by ultrasound at the beginning of the mating period. Directly after lambing, the lambs (n = 930)were weighed and basic reproductive traits were assessed: LR, LS and TLWB. Statistical analysis was performed using SAS 9.3., CORR procedure. LW was correlated with all the reproductive traits (r = 0.211 to 0.247; p < 0.01). BCS did not correspond significantly to LR or LS traits, but it correlated signifi- cantly to TLWB (r = 0.101; p < 0.05). There was no significant correlation between BT and LR, while significant correlations (p < 0.01) were detected between BT and LS (r = 0.125) as

Druh

D - Stať ve sborníku

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Reproduction in Domestic Animals, Special Issue: Proceedings of the 19th Annual Conference of the European Society for Domestic Animal Reproduction (ESDAR)

ISBN

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ISSN

0936-6768

e-ISSN

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Počet stran výsledku

1

Strana od-do

73-73

Název nakladatele

Neuveden

Místo vydání

Varna, Bulgaria

Místo konání akce

Varna, Bulgaria

Datum konání akce

16. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000364593400177