Genetic Achievements of Claw Health by Breeding
نویسنده
چکیده
منابع مشابه
Nutritional Influences on Horn Quality and Hoof Health
Lameness in dairy cows is a major cause of suffering and economic loss with up to 52% (average 20-25%) of cows becoming lame each year (Clarkson et al., 1996; Green et al., 2002). The vast majority of lameness cases are caused by a variety of non-infectious and infectious claw diseases causing severe pain, decreased milk yield, reduced reproductive performance, high culling rates and increased ...
متن کاملGenetic Inheritance of Female and Male Morphotypes in Giant Freshwater Prawn Macrobrachium rosenbergii
Giant freshwater prawn (GFP) Macrobrachium rosenbergii is unique with males categorized in five different morphotypes (small claw, orange claw, blue claw, old blue claw and no claw males) and females in three reproductive statuses (mature ovary, berried and spawned females). In the present study we examined genetic inheritance of female and male morphotypes, their body weights and genetic assoc...
متن کاملPredictive ability of genomic breeding values for corkscrew claw in Norwegian Red
The aim was to predict genomic breeding values (GEBV) for corkscrew claw (CSC) in Norwegian Red and to investigate whether including historical data from a correlated trait improved the predictive ability of GEBV. Corkscrew claw, the most prevalent claw disorder in Norway, has since 2004 been recorded by claw trimmers. Hoof quality (HQ), a feet and leg conformation trait recorded by breeding ad...
متن کاملGenetic Evaluation for Feet Traits Collected from Young German Holstein Bulls
In general the importance of functional traits is increasing in all dairy cattle populations over the last decade. Beside udder and fertility problems claw and foot disorders are main involuntary culling reasons. Linear description of feet and leg traits in the frame of conformation scoring didn’t reduce claw and leg problems as expected. Therefore new ways of data recording should be establish...
متن کاملUse of Stable Isotopes to Investigate Keratin Deposition in the Claw Tips of Ducks
Stable isotopes derived from the claws of birds could be used to determine the migratory origins of birds if the time periods represented in excised sections of claws were known. We investigated new keratin growth in the claws of adult female Lesser Scaup (Aythya affinis) by estimating the equilibration rates of stable isotopes (δ (13)C, δ (15)N, and δ (2)H) from the breeding grounds into 1 mm ...
متن کامل