What this work is about, in plain words
Does a chlorella feed supplement pay off in broiler fattening? The author converted the Algalat trial data into feed savings: the 0.5 % dose gave the most.
For a poultry farm, it matters not only whether birds grow faster but also whether a supplement pays off: how much feed it saves. The author assessed the feed complex Algalat — a mixture of dry chlorella and lactic acid bacteria with fillers — from this angle.
The trial was carried out at a poultry farm: four groups of 12 broiler chickens were fattened for 39 days. The control group received the usual diet, and the experimental groups received it with 0.5, 1.0 and 1.5 % Algalat. Weight gain, feed consumption, slaughter yield, blood parameters and gut microflora were recorded.
According to the author, over the experiment a chick on the 0.5 % dose gained 2067 g against 1933 g in the control. Feed savings per 1 kg of gain were 130, 80 and 60 g at doses of 0.5, 1.0 and 1.5 %. Per kilogram of supplement fed, about 6.7 kg of feed was saved at the 0.5 % dose and 1–2 kg at higher doses. Slaughter yield in all groups met the standards.
The work shows that the benefit of the supplement depends on the dose and is greater at a low dose.
Limitations. The experimental design and figures match the 2017 article — apparently this is the same trial, recalculated as feed savings. Small groups, a single trial. Algalat is a third-party product; the work does not describe Laboratory 17 materials.