Feed efficiency in the fattening of Limousine crossbreeds cattle in the system of biological farming
2022
AplocinaAplociņa, Elita, Elita | KreismaneKreišmane, Dzidra, Dzidra | Runce, Aelita | MuiznieceMuižniece, Inga, Inga
The study explains the effect of different feed rations on the fattening rates of animals at a Limousine crossbreeds in a biologically certified farm. The quality of self-produced feed and the impact of appropriate feed rations on the results of animal nutrition have been assessed and the most optimal solutions for the final fattening of animals have been evaluated. During the final fattening period, four different feed rations were used for 15 Limousine crossbreeds 57–60 days before slaughter. All animals received haylage ad libitum, and, in addition, the following feedstuffs were fed: for Group 1 – concentrate (oats and vetch) ad libitum, for Group 2–1.5 kg of molasses; for Group 3–2.5 kg concentrate (oats and vetch); for Group 4–2.5 kg of molasses. At the start of the final fattening at the age of 19 and 21 months the average live weight of cattle was between 501 to 522 kg. The amount of dry matter ingested per 100 kg of live weight was 2.1–2.4 kg. Group 1 animals received the highest dietary energy and crude protein content, which had a positive effect on the cattle growth and productivity. The lowest increase in live weight (0.12 kg dayE−1 per animal) was observed in Group 2 with the lowest crude protein content (1.2 kg dayE−1). Whereas, the highest increases in live weight, i.e., 0.75 kg per day, were recorded for the animals of Group 4, which received increased doses of molasses; these animals also had the highest live weight at the end of fattening – 556 kg. The heaviest carcass weight (313.1 kg) and highest dressing percentage (56.7%) were for the cattle with unrestricted access to feed, but, nevertheless, this is not a satisfactory indicator.
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