Storage of hatching eggs for a period prior to incubation is unavoidable. Extended storage periods do affects egg quality, chick development and hatchability. There are variations in responses from different strains chickens. Transylvanian naked neck chicken were stored at 16±1.5℃ either 0, 3, 6, 9, 12, 15 or 18d. Forty-four each batch set after quality determination with 6 per batch. Egg weigh...

The net energy (NE) system takes into account the metabolic utilisation of energy and has been proposed as a superior system for characterising the energy value of feeds. In growing pigs, the inefficiency of ME utilisation for NE (or the heat increment, HI) is dependent on many factors, among them the genotype, which implies that published NE prediction equations may not apply across all genoty...

PiT-1 protein is a transmembrane sodium-dependent phosphate (Pi) transporter. PiT-1 knock out (KO) embryos die from largely unknown causes by embryonic day (E) 12.5. We tested the hypothesis that PiT-1 is required for endocytosis in the embryonic yolk sac (YS) visceral endoderm (VE). Here we present data supporting that PiT-1 KO results in a YS remodeling defect and decreased endocytosis in the...

The intercropping is a production system that aims to provide increased yield with less environmental impact, due to greater efficiency in the use of natural resources and inputs involved in the production process. An experiment was carried out to evaluate the agronomic viability of kale and New Zealand spinach intercropping as a function of the spinach transplanting time. (0, 14, 28, 42, 56, 7...

Studies on heart rate variability (HRV) have become popular and the possibility of diagnosis based on non-invasive techniques compels us to overcome the difficulties originated on the environmental changes that can affect the signal. We perform a non-parametric segmentation which consists of locating the points where the signal can be split into stationary segments. By finding stationary segmen...

The present study was conducted to determine the external and internal egg quality of Isa Brown (Gallus gallus domesticus) chicken and Japanese quails (Coturnix coturnix japonica) as affected by storage time under room temperature in the hot weather conditions of Nigeria. Parameters evaluated included egg weight, albumen and yolk indices. For each species, a total number of twenty freshly laid ...

This study was conducted to investigate the effects of in ovo and post-hatching supplementation with L-Glutamine (Gln) on hatching characteristics, performance, small intestinal morphology, muscle development broilers. At day 18 incubation, 960 fertilized eggs were allocated four treatments six replicates. Eggs i) not injected (negative control) (NC), ii) subject standard incubation procedure (...

The objective of this study was to evaluate whether probiotic supplementation laying hens can improve the quality eggs during storage. trial developed in a commercial farm, which light-weight (36 weeks old) housed cages were randomly selected for one two different treatments: control group fed non-supplemented diets, or birds with diets supplemented 50 g/ton probiotics. lasted 84 days, comprisi...

These two volumes form part of the excellent In Practice series, published by the Royal Society of Medicine. Each examines an aspect of cardiology and presents it in such a way as to be accessible for the expert and the generalist alike. Professor Lip is well known for his work on atrial fibrillation, and the book manages to include a lot of information. Despite this, it is very readable. My on...

1. A washed bacterial suspension of Donovan microorganisms cultivated in the yolk of chick embryos was used as an antigen in intracutaneous tests in 6 cases of granuloma inguinale in the active stage of the disease. These injections were responded to by an extensive erythematous and edematous reaction that reached its height in 24 hours and disappeared within 48 hours later. Four control cases ...