Skip to main content

Table 2 Summary of factors influencing lamb survival times in ten sheep breeds in GB.

From: Associations between lamb survival and prion protein genotype: analysis of data for ten sheep breeds in Great Britain

 

factor†

Breed

PrP genotype

birth weight‡

litter size

sex

age of dam

year of birth

model including birth weight

      

Beulah Speckled Face

ns

***a

ns

***

ns

**

Bluefaced Leicester

ns

**a

ns

ns

ns

***

Charollais

ns

***b

**

ns

ns

***

Lleyn

ns

***a

ns

***

ns

***

North Country Cheviot (Hill)

ns

***a

*

***

ns

***

North Country Cheviot (Park)

ns

**b

ns

***

ns

***

Poll Dorset

ns

***b

*

***

ns

***

Scottish Blackface

ns

***b

*

***

**

***

Texel

ns

***a

ns

***

*

ns

Welsh Mountain

ns

***a

ns

***

**

**

model excluding birth weight

      

Beulah Speckled Face

ns

-

***

***

ns

ns

Bluefaced Leicester

ns

-

ns

ns

*

**

Charollais

*

-

***

ns

ns

***

Lleyn

ns

-

*

***

**

***

North Country Cheviot (Hill)

ns

-

***

***

ns

***

North Country Cheviot (Park)

ns

-

***

***

***

ns

Poll Dorset

ns

-

***

***

**

***

Scottish Blackface

ns

-

***

***

***

***

Texel

ns

-

**

***

**

**

Welsh Mountain

ns

-

**

***

***

ns

  1. † significance in final model or when deleted from the model: ns (P > 0.05); * (0.01 <P ≤ 0.05); ** (0.001 <P ≤ 0.01); *** (P ≤ 0.001)
  2. ‡ a superscripted letter indicates birth weight incorporated as a linear (a) or quadratic (b) function in final model