Spirulina platensis algae (SPA) is a natural feed supplement with 40 to 45% crude protein,
2.44% Ca, and 6.27% P. It contains substances (eg, β-carotene and zeaxanthin, and high …

This study investigated the effects of dietary energy and calcium levels on laying
performance, eggshell quality and bone metabolism of layers. One hundred and sixty-two 19 …

This experiment was conducted to evaluate the effects of nanocalcium carbonate (NCC)
instead of calcium carbonate (CC) on egg production, egg weight, egg mass, FCR, blood …

An experiment with Leghorn laying hens was undertaken to determine the effect of oyster
shell particle size and feeding time on different production variables, calcium retention …

The experiment was conducted to determine the nutritional requirement of calcium and the
best calcium: available phosphorus ratio for commercial layers at the post-laying peak. A …

Simple Summary The transparency of pigeon egg albumen is a special phenotypic trait that
different from other poultry eggs, and calcium is one of the main factors. This experiment …

Consumer concern about rapid growth and increased production efficiency is perceived to
negatively impact the welfare of the animal. This study investigated the effects of feeder …

As hens age, egg production and quality decline. Producers are interested in extending the
production of their hens to help with production costs and demand. The objective of this …

Use of synthetic feed additives in poultry production is associated with negative consumer
health outcomes hence the need to make use of natural alternatives. We investigated the …

Among the different feed additives studied in poultry production, clinoptilolite, an
aluminosilicate capable of adsorbing harmful substances and of improving live performance …