Χρήση ενσιρωμένου ελαιοπλακούντα στα σιτηρέσια γαλακτοπαραγωγών αγελάδων
Date Issued
2017
Author(s)
Advisor
Abstract
The scope of this research was to examine the effect of the silage olive
cake (OC) on the dairy cow diet in terms of quantity and quality of the
milk produced. The experiment used 24 cows of the HolsteinFriesian
breed which allocated into two homogeneous groups of twelve animals
according to their age, lactation period and their production and quality of
milk. In the first group (group OC) included 5 kg of silage olive cake per
cow per day, for a period of eight weeks, while in the control group
(group CON) was given an isogenic and isoproteinic ration without the
inclusion of olive cake. Milk sampling took place weekly with morning
and afternoon milk mixing, while animal weight measurements, food
consumption records, and blood sampling were performed throughout the
experiment. The results of the experiment showed that the silage oil cake
was completely consumed by the animals and had no effect on milk
production throughout the experiment and milk yield ranged between
25.2 ± 7.19 L and 26.54 ± 7.21L for the OC group and CON,
respectively. Moreover, the weight of the animals in the two groups was
unaffected (average of: 561.67 Kg),neither the percentage of fat in milk
which was 3.36 ± 0.30% and 3.21 ± 0.35% nor the percentage of protein
which was 3.55 ± 0.12% and 3.52 ± 0.14% for the OC and CON groups,
respectively Additionally, other components of milk like lactose and total
solids remained unaffected. In conclusion, the results of the present study
indicate that the use of olive cake on dairy cow diet can replace other
feeds thus reducing feed costs without affecting the quantity or quality of
the milk produced.
cake (OC) on the dairy cow diet in terms of quantity and quality of the
milk produced. The experiment used 24 cows of the HolsteinFriesian
breed which allocated into two homogeneous groups of twelve animals
according to their age, lactation period and their production and quality of
milk. In the first group (group OC) included 5 kg of silage olive cake per
cow per day, for a period of eight weeks, while in the control group
(group CON) was given an isogenic and isoproteinic ration without the
inclusion of olive cake. Milk sampling took place weekly with morning
and afternoon milk mixing, while animal weight measurements, food
consumption records, and blood sampling were performed throughout the
experiment. The results of the experiment showed that the silage oil cake
was completely consumed by the animals and had no effect on milk
production throughout the experiment and milk yield ranged between
25.2 ± 7.19 L and 26.54 ± 7.21L for the OC group and CON,
respectively. Moreover, the weight of the animals in the two groups was
unaffected (average of: 561.67 Kg),neither the percentage of fat in milk
which was 3.36 ± 0.30% and 3.21 ± 0.35% nor the percentage of protein
which was 3.55 ± 0.12% and 3.52 ± 0.14% for the OC and CON groups,
respectively Additionally, other components of milk like lactose and total
solids remained unaffected. In conclusion, the results of the present study
indicate that the use of olive cake on dairy cow diet can replace other
feeds thus reducing feed costs without affecting the quantity or quality of
the milk produced.
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