Fertile eggs from Cobb 500 broiler breeder hens were incubated to provide low starting egg shell temperatures (EST; 36.9°C to 37.3°C) which were gradually increased to 37.8°C during the first 7 to 15 days of incubation compared with eggs incubated with a constant EST of 37.8°C (standard conditions) over the first 18 days of incubation. Time of individual chick hatching (measured at 6 h interval...

Problem statement: Endogenous enzymes of broilers cannot adequately digest nonstarch polysaccharides and subsequently the ingestion of high levels of soluble NSP leads to increased digesta viscosity and reduced nutrient digestibility and absorption. Supplementation of NSPs degrading enzymes may remove the anti nutritive effects of NSPs and release some nutrients (starch, protein) from these ele...

Scoliosis is a three-dimensional deformity of the spine. In its most common form, idiopathic scoliosis (70% to 80% of cases), the causes are unknown (Rowe 2003). AIS is discovered at 10 years of age or older, and is defined as a curve of at least 10°, measured on a standing radiograph using the Cobb technique (Parent et al, 2005). While the prevalence of AIS is around 3% in the general populati...

Background: Scoliosis is the most common type of spinal deformity. A universal and standard method for evaluating scoliosis is Cobb angle measurement, but several studies have shown that there is intra- and inter- observer variation in measuring cobb angle manually.Objective: Develop a computer- assisted system to decrease operator-dependent errors in Cobb angle measurement.Methods: The spinal ...

En probióticos para avicultura es necesario evaluar estrategias de uso. El estudio evaluó el efecto del reemplazo progresivo antibiótico promotor crecimiento (APC) por probiótico sobre parámetros productivos, morfometría intestinal y ósea en broilers 1 a 21 días. 200 pollos BB machos Cobb 500 fueron distribuidos cuatro tratamientos con 10 repeticiones cinco animales repetición. Los fueron: T1: ...

Broiler performance is known to be related to embryonic developmental parameters. However, strain or genotype differences with regard to embryo physiological parameters and juvenile growth have received little attention. A total of 1,200 hatching eggs produced by Cobb and Ross broiler breeders of the same age were studied. At setting for incubation and between 66 and 130 h of incubation, egg re...

The purpose of this study was to investigate the effects of drinking water supplementation with graded increases of Na and K salts on the performance and gut contents of broilers before processing. Birds had no water, tap water, or water supplemented with sodium bicarbonate or potassium chloride in the concentrations of 0.15, 0.30, and 0.45% in the last 12 and 24 h before processing. The last 1...