Hair sheep of Caribbean origin have become an important part of the U.S. sheep industry. Their lack of wool eliminates a number of health concerns and drastically reduces the cost of production. More importantly, Caribbean hair sheep demonstrate robust production performance even in the presence of drug-resistant gastrointestinal nematodes, a rising concern to the industry. Despite the growing ...

The purpose of this research was to evaluate differences in parasite resistance of Barbados blackbelly ewes and Suffolk crossbred ewes. 40 ewes were used for this study; 20 were Suffolk crossbreds and 20 were Barbados blackbelly. Fecal egg counts (FEC) verified that there were zero internal parasites in the sheep at the start of the experiment. The sheep were placed on a previously grazed pastu...

This paper presents a new system architecture and test bed application implementation called Sheep Manager. Sheep Manager system uses NFC technology for the identification of sheep inside a flock as well as sensors for the real-time measurements and recording of raw milk extraction per ewe. All recorded information are then stored into the cloud. Authors also propose an algorithm for sheep bree...

AntunoviC, Z., B. MARKoviC, J. novoSELEC, M. SpERAndA, M. MARKOVIC, B. MIOC, M. ĐIDARA, Z. KLiR and d. RAdonJiC, 2015. Blood metabolic profile and oxidative status of endangered Mediterranean sheep breeds during pregnancy. Bulg. J. Agric. Sci., 21: 655–661 the aim of the present research was to determine metabolic profile and oxidative status of critically endangered Dubrovnik sheep and Zeta Zu...

The effect of the application of winter supplementation (experiment A), deworming (experiment B) and foot trimming (experiment C) in three sheep breedsfound in the Chiloé Archipelago (Chile): Chilota (CH), Romney Marsh (RM) and Suffolk Down (SD) was evaluated with the aim of assessing the productive performance of the exotic breeds (RM and SD) in relation to the native one (CH) under the agro-e...

The fecundity in sheep has been much interested for producers due to its economical importance. Growth differentiation factor 9 (GDF9) is an autosomal gene with over dominance effect for twosingle nucleotide polymorphisms(SNPs), which resulted in sterility in homozygote mutant ewes and additive effect for three SNPs, without showing sterility event. In the present study, DNA was extracted from ...

This study analyzed the genetic diversity and structure of two Bulgarian indigenous sheep (Ovis aries) breeds – Kotel Teteven, each presented by 4 flocks, using 15 microsatellite markers. A tot...

Occurrence of the αS1-casein D allele (formerly "welsh" variant) in sheep breeds Tsigai, Improved Valachian and Slovak Merino was investigated by means of isoelectric focusing in ultra thin polyacrylamide gel. This variant in herds of the above mentioned breeds was observed as follows: Improved Valachian 3.64%; Tsigai 5.57%; Slovak Merino 12.45%. In the last mentioned breed in a single animal α...

the genetic polymorphism of some genes related to meat production in three egyptian sheep breeds (barki, rahmani and osseimi) was studied. the candidate genes were: calpastatin, myostatin, diacylglycerol-acyltransferase1, insulin-like growth factor binding protein-3 and booroola fecundity gene. the technique applied was the restriction fragment length polymorphism for the polymerase chain react...

The neonatal Fc receptor (FcRn) plays an important role in regulating IgG homeostasis in the body and passive protection to the offspring. Changes in FcRn expression levels caused by genetic polymorphisms of Fcgrt, which encodes FcRn, may lead to inter-individual differences in colostrum IgG levels in sheep. In this study, we sequenced the FcRn partial heavy chain from 179 sheep from Xinjiang P...