What is HH5?

The Holstein Friesian Lethal Haplotype 5 (HH5) Results from a Complete Deletion of TBF1M and Cholesterol Deficiency (CDH) from an ERV-(LTR) Insertion into the Coding Region of APOB.

What is the casein gene?

GeneCards Summary for CSN2 Gene CSN2 (Casein Beta) is a Protein Coding gene. Diseases associated with CSN2 include Milk Allergy and Mastitis. Among its related pathways are Signaling by ERBB4 and Prolactin Signaling Pathway.

What is extended haplotype homozygosity?

The statistic EHH (Extended Haplotype Homozygosity) [R. S4. 2] is one such met- ric. It measures the reduction in haplotype diversity by computing the probability that two extended haplotypes around a given locus are the same, given that they have the same allele at the locus.

What are the recessive haplotypes in dairy cattle?

Recessive haplotypes that affect fertility and stillbirth in dairy cattle (haplotypes BH1–BH2, HH1–HH5, and JH1–JH2 were described in detail by VanRaden et al. ( 2011, 2013, 2014 ). A recessive mutation that causes embryo death (haplotype HH6) was discovered by Fritz et al. (2018).

How are haplotypes used in the food industry?

Haplotype tests are used routinely to identify animals with desirable traits of economic importance, discover new genetic disorders, and track carrier status of genotyped animals. Recessive haplotypes that affect fertility and stillbirth in dairy cattle (haplotypes BH1–BH2, HH1–HH5, and JH1–JH2 were described in detail by VanRaden et al.

What are the haplotypes of Brown Swiss cows?

These haplotypes were labeled as Brown Swiss haplotype 1 (BH1), Holstein haplotypes 1, 2, and 3 (HH1, HH2, and HH3), and Jersey haplotype 1 (JH1).

Why are dairy cows fed too high forage?

Early lactation cows fed too high forage and low energy of rations may be more prone to ketosis and have rapid body weight loss. Acidosis, cows going off-feed and fluctuating dry matter intake. Low milk fat percent. Cows not chewing their cud. Plus sign (+) if content is closed, ‘X’ if content is open.