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Response to selection of a breeding program for Suffolk sheep in the Czech Republic
lamb breeding values growth performance traits performance recording
2018/11/23
Lamb growth performance traits in relation to parental breeding values (BVs) for these traits were evaluated in a purebred Suffolk sheep population in the Czech Republic. The research lasted over 8 ye...
Number of Calves Produced at Specified Age as a Measure of Reproductive Performance in Beef Cattle under Artificially-Inseminated Breeding Scheme
Beef Cattle Genetic Parameter Number of Calves Produced Reproductive Performance
2016/4/29
Reproductive abilities in beef cattle herds are receiving increased attention due to recent rises in production costs. To achieve more efficient management, a measure of fertility, namely the number o...
Contribution of domestic and Interbull records to reliabilities of single-step genomic breeding values in dairy cattle
data combining genomic selection
2015/7/7
The method of approximating reliabilities of genomic breeding values in the single-step genomic
BLUP evaluation procedure of Misztal et al. (2013) was used to evaluate the increase in reliability of...
Breeding value evaluation in Polish fur animals: Estimates of direct heritability and portion of litter variation of fur coat and reproduction traits
arctic fox fur coat heritability
2015/6/1
The study presents estimates of heritability for fur coat and reproduction traits in arctic and silver foxes kept on Polish farms. The estimates of variance components were calculated using the DFREML...
Milk progesterone profiles, blood metabolites, metabolic hormones and pregnancy rates in Awassi ewes treated by gestagen + eCG at the early breeding season
dairy ewe cycle-induction/synchronization ovary
2015/4/1
The ovarian response to a standard chronogest + eCG treatment with plasma levels of insulin, insulin-like growth factor-I (IGF-I), thyroids, non-esterified fatty acids (NEFA), OH-butyrate (BHB...
Subfertility Problems Leading to Disposal of Breeding Bulls
Bull Disposal Subfertility Semen Quality Semen Freezability Prediction Equation
2016/5/11
Subfertility problems are encountered frequently in the cattle and buffalo bulls commercially maintained for semen production in dairy farms and under field conditions for natural insemination. Report...
Good news for consumers who savour tender, juicy lamb has been revealed in the latest research results from Industry & Investment (I&I) NSW - sheep genetics can help produce more lamb which better sat...
Comparison of Selection and Mating Systems for Maintenance of Closed Poultry Lines Using Several Breeding Cages
closed line effective population size inbreeding coefficient mating selection
2009/7/30
In a typical maintenance plan of closed poultry lines, breeding individuals are divided into several groups each with one male and several females. The groups are put into different breeding cages and...
Improved Reproductive Efficiency in Gilts by Intrauterine Infusion of Killed Boar Semen before Breeding
Gilt Killed Semen Litter Size Reproductive Efficiency Uterine Priming
2016/4/21
Two separate trials were conducted to determine the effects of uterine priming prior to first breeding and quantify any changes in the reproductive efficiency of gilts. In trial I twelve (12) gilts we...
Breeding Prolific Garole with Malpura Sheep for Increased Reproductive Efficiency in Semi Arid Tropics of India
Reproduction Garole Crosses Sheep Performance Traits
2016/4/15
Garole, a prolific small sized sheep breed of West Bengal, was introduced in the Mutton project of the Institute in 1997 to explore the possibility of incorporating fecundity gene(s) into monotocus Ma...
Use of Duckweed as a Protein Supplement for Breeding Ducks
Breeding Ducks Duckweed Intake Feed Conversion Ratio Laying Rate
2016/4/11
An experiment was conducted at the experimental duck farm of Cantho University to determine the effects of feeding duckweed (Lemna minor) that replaced commercial protein supplements in diets for loca...
Statistical Genetic Studies on Cattle Breeding for Dairy Productivity in Bangladesh: II. Estimation of Reciprocal and Heterosis Effects and Optimum Crossbreeding System between the Local Breeds and Exotic Breeds for Milk Performance
Bangladeshi Cattle Reciprocal Effects Heterosis Optimum Crossbreeding System
2016/4/11
Reciprocal effects among local breeds and additive and heterosis effects were estimated for total milk production per lactation (TLP), lactation length (LL) and daily milk yield (DMY). Procedures for ...