نتایج جستجو برای: sheep evolution

تعداد نتایج: 381341  

Journal: :Agricultural and Resource Economics Review 2022

Abstract Farm diversification is mainly driven by risk mitigation effects and economic gains related to complementarities between production activities. By combining these two aspects, we investigate economies in a sample of French mixed sheep farming systems rank using stochastic dominance criteria. Partially diversified (Sheep-Grass, Sheep-Crop, Sheep-Landless) fully (Sheep-Grass-Crop-Landles...

Journal: :Indian Journal of Animal Research 2023

Background: Many genomic imprinting left during long-term selective evolution may drive the formation of important economical traits introduced and indigenous sheep breeds. Methods: In this study, OvineSNP50 BeadChip data breeds GMM DOR breed Sunit were downloaded from public databases. Selective sweep base on Pi Fst strategy initially screened for a number candidate genes that could explain ge...

2003
Mingfeng He Hongbo Ruan Changliang Yu

We presented a predator-prey lattice model containing moveable wolves and sheep, which are characterized by Penna double bit strings. Sexual reproduction and child-care strategies are considered. To implement this model in an efficient way, we build a fully parallel Cellular Automata based on a new definition of the neighborhood. We show the roles played by the initial densities of the populati...

2017
Naeimeh Simaei Farhad Soltanalinejad Gholamreza Najafi Ali Shalizar Jalali

The middle ear ossicles are important due to transmission of sound to the inner ear leading to sound understanding. The aim of present study was to determine the anatomical and morphometrical aspects of middle ear ossicles in Makouei sheep fetuses. For this experimental study, eight sheep fetuses at the age of 2 to 3 months were provided from public slaughterhouse; their middle ear ossicles wer...

Journal: :The Journal of general virology 2005
Hong Li Katherine Gailbreath Edmund J Flach Naomi S Taus Jim Cooley Janice Keller George C Russell Donald P Knowles David M Haig J Lindsay Oaks Donald L Traul Timothy B Crawford

In the course of investigating the malignant catarrhal fever (MCF) subgroup of rhadinoviruses, seven novel rhadinoviruses were identified in a variety of ruminants, including domestic sheep, bighorn sheep, bison, black-tailed deer, mule deer, fallow deer, elk and addax. Based on the DNA polymerase gene sequences, these newly recognized viruses clustered into a second distinct subgroup in rumina...

Journal: :Journal of bacteriology 2001
R L Davies T S Whittam R K Selander

The molecular evolution of the leukotoxin structural gene (lktA) of Mannheimia (Pasteurella) haemolytica was investigated by nucleotide sequence comparison of lktA in 31 bovine and ovine strains representing the various evolutionary lineages and serotypes of the species. Eight major allelic variants (1.4 to 15.7% nucleotide divergence) were identified; these have mosaic structures of varying de...

2012
Raquel Chaves Filomena Adega Johannes Wienberg Henrique Guedes-Pinto

During analysis of genome organization in sheep (Ovis aries, 2n = 54, XY/XX), we found a novel chromosomal translocation in an animal expected to be normal, adding to the six ’centric fusions’ previously reported. The translocation was identified as t(8;11) by G-banding and was shown to be centric, involving whole chromosome arms by chromosome painting with probes for Chromosomes (Chrs) 8 and 1...

2017
Akhtar Rasool Asif Sumayyah Qadri Nabeel Ijaz Ruheena Javed Abdur Rahman Ansari Muhammd Awais Muhammad Younus Hasan Riaz Xiaoyong Du

OBJECTIVE Identification of the candidate genes that play key roles in phenotypic variations can provide new information about evolution and positive selection. Interleukin (IL)-32 is involved in many biological processes, however, its role for the immune response against various diseases in mammals is poorly understood. Therefore, the current investigation was performed for the better understa...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید