Association study between SNP markers located in meat quality candidate genes with intramuscular fat content in an endangered dual-purpose cattle population.

The aim of this study was to associate single nucleotide polymorphisms () of the bovine calcium-activated neutral protease µ-calpain, calpastatin, diacylglycerol--acyltransferase, adipose fatty acid binding protein, retinoic acid receptor-related orphan receptor C (), and thyroglobulin () gene with intramuscular fat content (). Therefore, 542 animals of the cattle breed "Rotes Höhenvieh" () were phenotyped for IMF. Genotyping of the animals was performed using polymerase chain reaction-restriction fragment length polymorphism tests for six SNP from candidate genes for meat quality traits.

Genetic variability among and within domestic Old and New World camels at the α-lactalbumin gene (LALBA) reveals new alleles and polymorphisms responsible for differential expression.

α-Lactalbumin (α-LA), which is encoded by the LALBA gene, is a major whey protein that binds to Ca and facilitates lactose synthesis as a regulatory subunit of the synthase enzyme complex. In addition, it has been shown to play central roles in immune modulation, cell-growth regulation, and antimicrobial activity. In this study, a multitechnical approach was used to fully characterize the LALBA gene and its variants in both coding and regulatory regions for domestic camelids (dromedary, Bactrian camel, alpaca, and llama).

Why and How European Farmers Are Dedicated to Breeding the Dwarf Dahomey Cattle.

This study investigates the motivations and breeding practices of farmers keeping Dahomey cattle in European countries. Data were collected using a web-based open-closed questionnaire survey targeting 55 farmers from Germany, Switzerland and Austria. Descriptive analyses revealed that the earliest European Dahomey herds were established in 2005.

First DNA Sequencing in Beninese Indigenous Cattle Breeds Captures New Milk Protein Variants.

This study investigated polymorphisms in the milk protein genes , , , , , and , and casein haplotypes in Beninese indigenous cattle. Considering 67 animals, DNA sequencing of the genes' exons, flanking regions and parts of the 5'-upstream regions identified 1058 genetic variants including 731 previously unknown. In addition, four novel milk protein variants were detected, including (p.

Identification of Thermophilic Aerobic Sporeformers in Bedding Material of Compost-Bedded Dairy Cows Using Microbial and Molecular Methods.

Compost-bedded pack barns (CBP) are of increasing interest in dairy farming due to their positive effect on animal welfare. The temperature and the moisture content of the bedding material characterising the composting process can promote the growth of thermophilic aerobic sporeformers (TAS). Therefore, the aim of this study was to determine CBP bedding material characteristics, such as moisture content and temperature, and to determine TAS species.