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Repeatability and reproducibility of body condition score in Yankasa sheep
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Body condition score is very critical during breeding, lambing and lactation, the current study was conducted to assess the repeatability and reproducibility of body condition score inYankasa sheep in some selected Local Government Areas of Kano State, Nigeria; Bebeji (BBJ), Dawakin Kudu (DKD), Wudil (WDL), Shanono (SNN), and Dambatta (DBT). Multistage sampling was adopted to select a total of 300 sheep comrison of 99 rams and 201 ewes. Body condition score was determined twice a day by two assessors using the standard procedure. The experiment was conducted using a cross factor design. Model III analysis of variance was carried out to determine the between sheep and inter and intra-assessor variations in the trait. The results shows a significant (P<0.01) effects of rams and ewes on the body condition score.It is concluded that repeatability and reproducibility of BCS were very high (0.828-0.982 and 0.791-0.939 for repeatability and reproducibility, respectively). It is recommended that sheep farmers consider condition scores in the selection and routinely assess their animals' nutritional status.
Le score de l'état corporel est très critique pendant la reproduction, l'agnelage et la lactation, la présente étude a été menée pour évaluer la répétabilité et la reproductibilité du score de l'état corporel chez les moutons de Yankasa dans certaines zones de gouvernement local sélectionnées de l'État de Kano, au Nigeria; Bebeji (BBJ), Dawakin Kudu (DKD), Wudil (WDL), Shanono (SNN) et Dambatta (DBT). Un échantillonnage à plusieurs degrés a été adopté pour sélectionner un total de 300 moutons de 99 béliers et 201 brebis. Le score de l'état corporel a été déterminé deux fois par jour par deux évaluateurs en utilisant la procédure standard. L'expérience a été menée en utilisant une conception à facteurs croisés. Une analyse de la variance du modèle III a été effectuée pour déterminer les variations entre les moutons et les variations inter et intra-évaluateur du caractère. Les résultats montrent un effet significatif (P <0.01) des béliers et des brebis sur le score de l'état corporel. Il est conclu que la répétabilité et la reproductibilité du BCS étaient très élevées (0.828-0.982 et 0.791- 0.939 pour la répétabilité et la reproductibilité, respectivement). Il est recommandé aux éleveurs de moutons de prendre en compte les scores de condition dans la sélection et d'évaluer régulièrement l'état nutritionnel de leurs animaux.
Nigerian Society for Animal Production (NSAP)
Title: Repeatability and reproducibility of body condition score in Yankasa sheep
Description:
Body condition score is very critical during breeding, lambing and lactation, the current study was conducted to assess the repeatability and reproducibility of body condition score inYankasa sheep in some selected Local Government Areas of Kano State, Nigeria; Bebeji (BBJ), Dawakin Kudu (DKD), Wudil (WDL), Shanono (SNN), and Dambatta (DBT).
Multistage sampling was adopted to select a total of 300 sheep comrison of 99 rams and 201 ewes.
Body condition score was determined twice a day by two assessors using the standard procedure.
The experiment was conducted using a cross factor design.
Model III analysis of variance was carried out to determine the between sheep and inter and intra-assessor variations in the trait.
The results shows a significant (P<0.
01) effects of rams and ewes on the body condition score.
It is concluded that repeatability and reproducibility of BCS were very high (0.
828-0.
982 and 0.
791-0.
939 for repeatability and reproducibility, respectively).
It is recommended that sheep farmers consider condition scores in the selection and routinely assess their animals' nutritional status.
Le score de l'état corporel est très critique pendant la reproduction, l'agnelage et la lactation, la présente étude a été menée pour évaluer la répétabilité et la reproductibilité du score de l'état corporel chez les moutons de Yankasa dans certaines zones de gouvernement local sélectionnées de l'État de Kano, au Nigeria; Bebeji (BBJ), Dawakin Kudu (DKD), Wudil (WDL), Shanono (SNN) et Dambatta (DBT).
Un échantillonnage à plusieurs degrés a été adopté pour sélectionner un total de 300 moutons de 99 béliers et 201 brebis.
Le score de l'état corporel a été déterminé deux fois par jour par deux évaluateurs en utilisant la procédure standard.
L'expérience a été menée en utilisant une conception à facteurs croisés.
Une analyse de la variance du modèle III a été effectuée pour déterminer les variations entre les moutons et les variations inter et intra-évaluateur du caractère.
Les résultats montrent un effet significatif (P <0.
01) des béliers et des brebis sur le score de l'état corporel.
Il est conclu que la répétabilité et la reproductibilité du BCS étaient très élevées (0.
828-0.
982 et 0.
791- 0.
939 pour la répétabilité et la reproductibilité, respectivement).
Il est recommandé aux éleveurs de moutons de prendre en compte les scores de condition dans la sélection et d'évaluer régulièrement l'état nutritionnel de leurs animaux.
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