Research Papers/Topics in Animal Breeding And Genetics

DETECTION OF QUANTITATIVE TRAIT LOCI: CHICKEN EGG AND REPRODUCTIVE TRAITS

This book provides research findings of the study conducted with the aim of revealing genetic loci influencing egg production traits in crosses between the chicken inbred lines New Hampshire and White Leghorn which were kept at the animal experimental station of Humboldt Universität zu Berlin, Germany. Besides providing the quantitative trait loci (QTL) information, the performance of the parental lines for various production and reproductive traits were well described. The book is...

Quantitative Trait Loci Segregating in Crosses Between New Hampshire and White Leghorn Chicken Lines: Egg Production Traits

A genome scan was performed to detect chromosomal regions that affect egg production traits in reciprocal crosses between two genetically and phenotypically extreme chicken lines: the partially inbred line New Hampshire (NHI) and the inbred line White Leghorn (WL77). The NHI line had been selected for high growth and WL77 for low egg weight before inbreeding. The result showed a highly significant region on chromosome 4 with multiple QTL for egg production traits between 19.2 and 82.1 Mb. Th...

Phenotypic Characterization of Chicken Inbred Lines that Differ Extremely in Growth, Body Composition and Egg Production Traits

The development of phenotypically and genetically divergent inbred chicken lines as simplified genetic models facilitates the identification of genes and contributes to the elucidation of gene functions. In this study, we characterized a New Hampshire (NH) population with its partial inbred derivative, New Hampshire inbred (NHI), and a White Leghorn inbred line (WL77). Both NHI and WL77 lines were inbred after selection for high meat yield or low egg weight, respectively. The inbreeding level...

Healing Effect of Faldherbia albida stem bark extract (FASB) on burn wound regarding tissue regeneration in Wistar albino rats

ABSTRACT A study was conducted in order to evaluate the effects of Faldherbia albida stem bark extract (FASB) contained in liposome gel at different concentration and silver sulfadiazine (SSD) cream on healing process of burn wounds in Wistar albino rats. Thirty five adult Wistar-albino rats were divided into five (5) groups of seven (7) rats each. A burn was generated on the backs of all the rats, done by subjecting to full thickness second degree skin burns with 5cm surface area d...

EFFECTS OF BREED, SEX AND AGE ON SERUM BIOCHEMISTRY IN NIGERIAN GOATS

ABSTRACTThe study was conducted to determine the effect of Breed, Sex and Age on serum parameters in Nigerian goats. Blood samples were collected from a total of 118 goats across different breed, sex and age. Eighty- four (84) from Sahel goat, eleven (11) from Red Sokoto and twenty-four (24) from West African Dwarf goat. The result obtained from the analysis of serum parameters showed that Breed had significant effect (P<0.05) on Glucose(mg/dl), Albumin (g/l), urea (mg/dl), Creatinine(mg/d...

GENETIC AND NON GENETIC FACTORS AFFECTING SERUM BIOCHEMICAL PARAMETERS IN NIGERIAN SHEEP

ABSTRACTThe purpose of this study was to determine the genetic (breed) and non genetic (sex and age) factors affecting serum biochemical parameters in Nigerian Sheep. Blood samples were collected from about 119 sheep which comprised the four breeds in Nigeria which include: Uda, Balami, Yankassa and West African Dwarf. The results obtained from various analyses for serumparameters showed significant effect (P<0.05) of Sodium on breed with the highest mean value on WAD. There was no signifi...

The Effects of Phenotypic and BLUP selection methods in livestock populations (swine) in tropical developing countries .

ABSTRACTA computer simulation experiment was conducted to evaluate the cumulative response to best linear unbiased prediction (BLUP) and phenotypic selection for low and high heritability traits and in previously Selected, Unselected and Synthetic populations, typical of exotic and indigenous populations and their crossbreds used in tropical pig production. The QMSim simulation software was used to simulate the various population structures and the dataset was generated for traits with herita...