Results 81 to 90 of about 2,222 (233)
PoultryIt is well established that both the age of the breeder hen and the type of incubator can influence the efficiency of the hatching process. However, there is a lack of information in the literature regarding the interaction between these two factors ...
Geise Linzmeier +7 more
doaj +1 more source
Poultry Science, 2021 : The dietary inclusion of aluminosilicates has been reported to enhance pellet quality, improve feed mill throughput, bind toxins, improve feed efficiency, and promote immunological function across a variety of production systems.
C.P. Juzaitis-Boelter +5 more
doaj +1 more source
Protein Requirements of Turkey Breeder Hens
Poultry Science, 1972 Abstract In three experiments with large type turkey hens, no statistically significant improvements in reproductive preformance (as measured by production rate, feed per egg, fertility and hatchability) were obtained from increasing protein in the diet from 14 to 16 or 18%, or from added lysine to the 14% protein diet.
L.R. Minear, D.L. Miller, S.L. Balloun
openaire +1 more source
Grassland Research, EarlyView.Our modeling study shows that livestock management strongly influences grazing behavior and animal performance in the Peruvian Andes. Furthermore, adjusting stocking rates and improving animal distribution can enhance forage intake and body condition while increasing forage biomass.
Melody R. Zarria Samanamud +1 more
wiley +1 more source
iMetaOmics, EarlyView.This study identifies uterus weight as a heritable (h2 = 0.45) intermediate phenotype that independently associates with late‐life egg production and eggshell quality in aged laying hens. Genome‐wide association study (GWAS) reveals a genome‐wide significant locus on chromosome 3 and suggestive loci on chromosome 11 for uterus weight, mediation ...
Junnan Zhang +7 more
wiley +1 more source
The Vitamin B6 Requirement of Breeder Hens
Poultry Science, 1961 Abstract THE need for vitamin B6 for egg production and hatchability was established by Cravens et al. (1943). In a later report, they placed the requirement for maximum hatchability at 2.0 mg. per kg. of ration by adding crystalline pyridoxine HCl to a purified diet of estimated vitamin B6 content (Cravens et al., 1946).
H.L. Fuller +4 more
openaire +1 more source
myo‐Inositol's role in laying hens’ active gastrointestinal microbiota: a strain comparison
Journal of the Science of Food and Agriculture, EarlyView.Abstract BACKGROUND myo‐Inositol (MI) is a cyclitol involved in cellular metabolism and phytate degradation, yet its influence on the gastrointestinal tract (GIT) microbiota of laying hens remains poorly understood. This study investigated the effects of graded dietary MI supplementation on the active GIT microbial communities of two commercial laying ...
Naomi Sarpong +4 more
wiley +1 more source
Effect of spraying Pekin duck eggs obtained from different breeder age on hatchability [PDF]
, 2014 Onbasilar, Ebru/0000-0002-1321-0280; kocakaya, afsin/0000-0003-2023-8895The objective of this study was to determine the effect of spraying Pekin duck eggs obtained from different breeder age on hatchability.
Kocakaya, A. +3 more
core +1 more source
Effects of oiling common raven nests on ravens and greater sage‐grouse in sagebrush ecosystems
The Journal of Wildlife Management, EarlyView.We oiled and sham‐oiled raven nests across 7 sites in the Great Basin to measure the effects of egg‐oiling on co‐occurring populations of ravens and sage‐grouse. Oiling raven eggs ended embryonic development of oiled eggs, reduced raven densities, resulted in more than a doubling of nest‐survival probabilities of sage‐grouse nests, and spurred ...
Steven R. Mathews +4 more
wiley +1 more source
Space Requirements of Turkey Breeder Hens
Poultry Science, 1968 Abstract THERE is a dearth of information about the space requirements for turkey breeder hens under intensive conditions. Since turkeys have natural protection against cold weather there has been no pressing need to crowd breeder hens into enclosed areas for conservation of body heat.
R.W. Berg, R.N. Shoffner, E.L. Johnson
openaire +1 more source