Latvijas tumšgalves šķirnes teķu barības patēriņš kontrolnobarošanas laikā = The feed consumption of the rams of the Latvian Dark Head breed during the control feeding period
2023
Kairiša, Daina | Bārzdiņa, Dace | Eglīte, Harita | Miķelsone, Ilze | Leska, Valdis
Feed consumption is one of the main cost drivers for fattening animals. In sheep breeding, it depends also on the breed of sheep used. In the study, the results of control feeding of rams accumulated at the control feeding station “Klimpas” between 2020 and 2022 were used. In the control feeding, the male gender offspring were mainly used; they were Apolons0302, Edžiņš0365, Skaris0008, Feirāms0023 and Sīmanis0195 lines’ rams. Three or four offspring of each ram were placed into one pen. The rams were fed unlimitedly (ad libitum) with commercially produced compound feed and self-produced hay. Water was provided automatically. The live weight of the rams was monitored regularly once per week. The average fattening period of the rams ranged from 62 days (lines Feirāms0023 and Sīmanis0195) to 71 days (line Apolons0302); the difference of 9 days is significant (p<0.05). The obtained mean live weight of rams during the fattening period was from 21.06 kg (line Sīmanis0195) to 23.66 kg (line Skaris0008). The highest mean live weight gain during the fattening period was achieved by the rams of the Skaris0008 line, on average 376.4 g per day, which is 55.1 g higher than that of the rams of Apolons0302 line. Rams of the Apolons0302 line consumed significantly less compound feed, (on average 1.474 kg per day), but consumption of hay on average was 612 g. For obtaining one kg of live weight gain rams consumed between 4.538 kg (line Skaris0008) and 5.074 kg (line Sīmanis0195) of forage, the difference of 0.536 kg is economically significant.
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出版者 Latvijas Biozinātņu un tehnoloģiju universitāte
