Genetic relationships of breech cover, wrinkle and wool coverage scores with key production traits in Australian Merino sheep
نویسندگان
چکیده
منابع مشابه
Genetic Parameters in Merino Sheep GENETIC RELATIONSHIPS BETWEEN CARCASS QUALITY AND WOOL PRODUCTION TRAITS IN AUSTRALIAN MERINO RAMS
The heritability of carcass quality traits and the genetic correlations between wool production and these carcass quality traits were estimated on 1216 Merino rams. The results showed that carcass quality traits are moderately heritable but pH appears to be lowly heritable. Yellowness and redness of L. dorsi had very low heritability estimate. Moderate negative genetic relationships were found ...
متن کاملGenetic relationships between dagginess, breech bareness, and wool traits in New Zealand dual-purpose sheep.
Genetic and phenotypic parameters were estimated for dagginess, breech, wool, and fiber traits from approximately 29,500 progeny born in 2009 and 2010 in New Zealand dual-purpose ram breeding sheep flocks. Dagginess is adherence of fecal matter to the wool, and this study investigates the genetic and phenotypic correlations between dagginess and breech and wool traits. Estimates for heritabilit...
متن کاملGenetic Relationships between Indicator Traits for Fly Strike Resistance and Production Traits in Merino Sheep
Fly strike in sheep has been estimated to cost the Australian sheep industry approximately $280m dollars annually (Sackett et al. 2006) as a result of sheep losses, cost of treatment and loss of wool and carcase production and value. Historically Australian sheep producers have surgically removed skin from around the tail (mulesing) to help avoid fly strike. Although this has proved highly succ...
متن کاملGenetic Analysis of Absence of Breech Strike and Breech Strike Indicator Traits in South African Merino Sheep
The sheep blowfly is an economically important ectoparasite of sheep, and impacts on animal health and welfare under pastoral conditions in South Africa. The absence of flystrike in the breech (ABS) was recorded in 2198 Merino hoggets on the Tygerhoek Research Farm. This trait was analysed together with dag score (DS; n=1623); neck wrinkle score (NWS; n=2162); midrib wrinkle score (MWS; n=2162)...
متن کاملIncorporating Subjectively Assessed Sheep and Wool Traits into Genetic Evaluations for Merino Sheep 2: Phenotypic and Genetic Correlations
Using pedigree and performance records obtained from two Merino breeders the phenotypic and genetic relationship between subjectively assessed sheep and wool traits and objectively measured wool traits were estimated. The subjective traits were all favourably genetically correlated with fibre diameter. The genetic relationship with body weight, greasy fleece weight and fibre diameter variation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Small Ruminant Research
سال: 2018
ISSN: 0921-4488
DOI: 10.1016/j.smallrumres.2018.04.010