Productivity Index - Traits

Speciessort descending Breed Trait
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight of dam (kg)
Sheep South African Merino Total weaning weight produced per ewe over three lambing seasons.
Sheep Toronke Weight of young weaned per kg metabolic weight of breeding female per year (in kg)
Sheep Toronke Weight of young weaned per kg of breeding female per year (in gm).
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight(0.73) of dam (kg)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight(0.73) of dam (kg)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight(0.73) of dam (kg)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)
Sheep Djallonke per breeding female per year
Sheep Blackhead Somali Total litter weight (kg) at 150 days per female during lifetime
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight(0.73) of dam (kg)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight(0.73) of dam (kg)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)
Sheep Djallonke per kg dam weight per year
Sheep Blackhead Somali Births per year per female
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)
Sheep Djallonke 365/Parturition interval * Litter size * Survival to 90 days * Live weight at 90 days.
Sheep Menz Index I / ppwt 0.73 of dam (kg)
Sheep Djallonke 365/Parturition interval * Litter size * Survival to 90 days * Live weight at 90 days.
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight(0.73) of dam (kg)
Sheep Red Maasai ((Total live weight of litter at 150 days X 365) / (subsequent parturition interval (days))) / (Post-partum dam weight (ppwt), kg)
Sheep Rwanda-Burundi-Tanzania Long-tailed Total live weight of litter at 150 days * 365/subsequent parturition interval (days)/ Postpartum weight of dam (kg)
Sheep Djallonke per kg dam weight per year