By Oresnik, A., Prvi Slovenski Veterinarski Kongres, 1993
Description
The results of production, clinical disease and reproductive disorder analyses out of a group of 4 farms (1093 Friesian cows), where a feeding system based on efficient roughage utilization was introduced are presented in this article. The average milk yield per cow was 12.7% higher in 1992 than in 1987 (6563 compared with 5882 kg respectively). The average milk yield from roughage per cow daily was calculated in 1987 to be 7.5 kg and in 1992 to be 11.1 kg. Service interval was 16 days shorter in 1992 than in 1987 (120:104 days respectively). First service conception rate was higher in 1992 than in 1987 (43.5:30.8%). Retained placenta frequency was 17.6% in 1987 and 10.3% in 1992, the appearance of metritis 35.9 and 22.0% and of cystic ovaries 2.4 and 0.5% respectively. Lameness problems were reduced from 29.8 to 13.5% and the frequency of parturient paresis from 4.9 to 3.5% in the 5-year period. These results led to the conclusion that the introduced feeding system is efficient in the prevention of health and reproductive disorders in dairy herds
The results of production, clinical disease and reproductive disorder analyses out of a group of 4 farms (1093 Friesian cows), where a feeding system based on efficient roughage utilization was introduced are presented in this article. The average milk yield per cow was 12.7% higher in 1992 than in 1987 (6563 compared with 5882 kg respectively). The average milk yield from roughage per cow daily was calculated in 1987 to be 7.5 kg and in 1992 to be 11.1 kg. Service interval was 16 days shorter in 1992 than in 1987 (120:104 days respectively). First service conception rate was higher in 1992 than in 1987 (43.5:30.8%). Retained placenta frequency was 17.6% in 1987 and 10.3% in 1992, the appearance of metritis 35.9 and 22.0% and of cystic ovaries 2.4 and 0.5% respectively. Lameness problems were reduced from 29.8 to 13.5% and the frequency of parturient paresis from 4.9 to 3.5% in the 5-year period. These results led to the conclusion that the introduced feeding system is efficient in the prevention of health and reproductive disorders in dairy herds
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