b'o Yellow duns have the following possible genotypes: AADecision Guide for Fjord Color Testingee nCr, Aa ee nCr, aa ee nCr (this last one is genetically bothInstructions: For each of the 3 Fjord color genes (Agouti, Red grey and red, but looks yellow). Factor,andCreamDilution),investigatethesepossibilities Cream Dilution, in 2 copies (CrCr), will make a kvit (orangeabout the pedigree, phenotype, known color of parent horses, skin with blue eyes and very minimal dark hair on the body).productionrecord,orownerswishes,inordertodecide The other color alleles that the horse carries are important towhether to test for that gene. Consider each gene separately. know because those will determine what that horse can passOne does not affect inheritance of the others. Not all Fjords along to its offspring. need to be tested for all color genes, as indicated below.o Kvits over a brown dun base will have the following1.Do I need to test for grey (Agouti gene)?possible genotypes: AA EE CrCr, Aa EE CrCr, Aa Ee CrCr. a. Both parents are grey.o Kvits over a grey base will have the following possiblei. No need to test for Agouti. Foals genotype is aa.genotypes: aa EE CrCr, aa Ee CrCr. b. One parent is grey, but foal doesnt look grey.o Kvits over a red dun base will have the following possiblei. No need to test for Agouti if foal isnt grey. Its genotypes: AA ee CrCr, Aa ee CrCr, aa ee CrCr (this last one isgenotype is Aa.genetically both grey and red).Foal colors can give us clues as to what color the foal isii. Test for Agouti if the foal looks grey or the owner genetically. wants to know.o Brown duns, greys, and white duns have black hairs inc. Neither parent is grey but there is family history of their manes and tails. At birth, their hooves are grey and theirgrey.eyelid skin is grey-black. Brown duns and white duns do noti. Test for Agouti.have a grey circle under their eyes. d. Its unknown if there is grey in the pedigree but there o Red duns and yellow duns cannot produce black hairs.is a desire to know.At birth, they will have creamy hooves and orange coloredi. Test for Agouti.eyelid skin, both of which darken with age. White markings on hooves and faces are more common in red and yellowe. Both parents are grey, but foal is red.duns, and those with white markings in the hooves will bei. No need to test for Agouti. Foal is genetically both less creamy colored, and more true white. White sections ofgrey and red (aa ee). Red blocks the production of hooves and faces are also clearly visible at birth, even on redblack hairs, and thus grey is not expressed.and yellow dun Fjords. f. Both parents carry grey, but foal is red.o Grey Fjord foals, at birth, will have a semi-circle of darki. Test for Agouti. Red could cover a genetically grey grey-brownhairsbelowtheeyes,whichisnotpresentinFjord (aa), or the foal could be a grey carrier (Aa), or brown dun foals or white dun foals. carry no grey at all (AA). Testing will determine this.o Foals are born with eyelashes of various colors. Manyg. Adult horse in question is not grey but has produced foals with one copy of Cream Dilution have proportionallya grey offspring.more white eyelashes than foals that dont have a copy of Cream Dilution. This is not an easy predictor because of thei. No need to test of Agouti. Horses genotype is Aa.variety of colors in newborn lashes. h.Adulthorseinquestionisnotgreyandhasnot o Blue-grey eyes at birth is common in Fjords, and theyproduced a grey offspring.typically turn from gold to brown within 1-3 months of age. i.Test for Agouti.o Kvit Fjords have sky-blue eyes and orangish-pink skin. The eyes dont change color over time. The hooves will be 2.Do I need to test for Red (also called Red Factor gene, grey on black-based kvit Fjords and will be creamy on red- Red/Black Factor gene, Extension gene)?based kvit Fjords. a. Both parents are red or yellow or a combo.i. No need to test for Red Factor. Foals genotype is ee.b. One parent is red or yellow but foal doesnt look red or yellow.i. No need to test for Red Factor if foal doesnt look red or yellow. Its genotype is Ee.ii. Test for Red Factor if the foal looks red/yellow or the owner wants to know.G_Some red duns do not have a bold red mane center like this 1dr Rasmus30 Fjord Herald Issue #148Fall 2023'