Feed intake, feed efficiency, and weight gain are important economic traits of beef cattle in feedlots. In the present study, we investigated the physiological processes underlying such traits from the point of view of systems genetics. Firstly, using data from 1334 Nellore (Bos indicus) cattle and 943,577 single nucleotide polymorphisms (SNPs), a genome-wide association analysis was performed ...

This study was carried out to assess the effects of supplementation bypass fat for one month prepartum and three months postpartum on nutrient intake feed conversion efficiency milk production in buffaloes. Advanced pregnant buffaloes (n=32, 2-3 parity) were selected at farmers’ doorstep, divided into two equal groups, each 16 animals, basis previous lactation %. Animals T1 group (n=16, control...

in this study, the effects of culban seed (vicia peregrine l.) on live body weight, feed intake, feed efficiency, egg production, egg quality characteristics, egg yolk fatty acid profiles and yolk cholesterol content in laying hens were investigated. the experiment consists of seven treatment groups with ten replications containing one laying hen in each and for 32 weeks old seventy laying hen ...

two hundred eighty days old male broiler chicks(ross strain) were randomly distributed into seven groups with four replicates (10 birds in each replicate) and were fed diets supplemented with different dietary fat sources.the results indicated that the different dietary treatments did not affect weight gain, feed intake and feed conversion ratio at 21 d (p>0.05). however, addition of dietary fa...

Although the uncovered set has occupied a prominent role in social choice theory, its exact shape has never been determined in a general setting. This paper calculates the uncovered set when actors have pork barrel, or purely distributive, preferences, and shows that in this setting nearly the entire Pareto set is uncovered. The result casts doubt on the usefulness of the uncovered set as a gen...

The recommendations of energy levels for laying hens vary greatly between the strain manuals and also between strains manuals and tables of research institutions. The use of inadequate levels of energy can lead to productivity losses and low efficiency of energy use. To establish mathematical models for yield response of young laying hens to different levels of AMEn and evaluate the influence o...