Rapporttyp 1 Report category Examensarbete C-uppsats To investigate the ability for animals to understand human communication signals and the communication between animals and humans, scientists often investigate the understanding of human gestural cues. Dogs (Canis lupus familiaris) which have a long history of co-evolution with humans have been shown to make good use of human gestural cues. I...

The objectives of this study were to determine estrus behavior, interval to estrus, duration of estrus and time of ovulation of Boran, and Boran × Holstein Friesian (HF) breeds. A total of 113 cows and heifers from the two breeds were synchronized with two estrus synchronization protocols: 1) estradiol benzoate (EB) + controlled internal drug release (CIDR) + prostaglandin (PGF2α); and 2) gonad...

Understanding the evolution and molecular architecture of complex traits is important in domestic animals. Due to phenotypic selection, genomic regions develop unique patterns of genetic diversity called signatures of selection, which are challenging to detect, especially for complex polygenic traits. In this study, we applied the composite selection signals (CSS) method to investigate evidence...

The aim of this study was to evaluate and compare the quality characteristics, chemical composition lipid profile lamb meat from Italian (Biellese Sambucana) German (Texel-Merino-Blackhead-Charollais [TMBC]) breeds reared in extensive semi-extensive production systems. Meat samples 89 animals were analysed. lambs semi-intensively Biellese, extensively Sambucana TMBC produced lean meat, with sli...

Four cattle breeds (Gyr, Nellore, Guzerat and Holstein) were analyzed by amplification of genomic DNA using microsatellite loci to evaluate the genetic diversity within and among them. DNA samples of 18 animals from each breed were collected to access the genetic content of them. Allele frequencies were calculated and used to generate a Nei’s genetic distance matrix what was used to build a den...

Myostatin, also called growth differentiation factor-8 (GDF-8), is a member of the mammalian growth transforming family (TGF-beta superfamily), which is expressed specifically in developing an adult skeletal muscle. Muscular hypertrophy allele (mh allele) in the double muscle breeds involved mutation within the myostatin gene. Genomic DNA was isolated from the camel hair using NucleoSpin Tissue...

Primary Lens Luxation (PLL) is an inherited disease common in Terrier breeds. A truncating mutation in the ADAMTS17 orthologue on CFA03 is reported to cause PLL in 17 breeds, mostly Terriers. This study investigated the mode of inheritance and penetrance of PLL, age of the ADAMTS17 mutation, and other possible causes of PLL in Australian Tenterfield Terriers and Miniature Bull Terriers. The ADA...

The objective of the present study was to estimate genetic parameters for scrotal circumference bulls beef breeds in Czech Republic. used database years 1996-2020 comprised information on measurements from 22 065 19 pure and crossbred animals Beef Simmental, Charolais, Hereford breeds. After adjustments, contained 16 404 records. To test influence systematic fixed effects, GLM/SAS procedure usi...

Access to sheep genome sequences significantly improves the chances Background of identifying genes that may influence the health, welfare, and productivity of these animals. : A public, searchable DNA sequence resource for U.S. sheep was created Methods with whole genome sequence (WGS) of 96 rams. The animals shared minimal pedigree relationships and represent nine popular U.S. breeds and a co...