Determining the influence of roughage on the quantity and quality of milk
Keywords:
quantity and quality of milk, sheep, roughageAbstract
The aim of the present study is to establish the influence of four types of roughage: hay from natural
and sown pastures, as well as corn and sorghum silage on the milk productivity of sheep included
in the ration as the main roughage. To achieve this goal, dairy sheep of the Pleven Blackface sheep
breed are used, divided into four groups. The sheep received the same composition of concentrated
feed, and as roughage, respectively, those described in the study. The lowest feed consumption per
liter of milk is observed in the group of sheep fed hay from sown pasture (2.042 kg DM). The average
consumption of forage per liter of milk using hay from sown pasture as roughage is 5.50%, 7.36%
and 5.00% lower, respectively, than that used for meadow hay, corn silage and sorghum silage. The
average daily milk yield of sheep fed with sorghum silage was 15.50% higher (1.142 l) than that fed to
corn silage (0.989 l). The average fat content of milk during the winter period of sheep with an average
daily milk yield of 1.065 l is 6.43% and the protein content is 5.72%. The content of fat, dry non-fat
residue and dry matter is inversely correlated with the amount of milk, with higher values observed
throughout the period in the two groups with lower milk productivity (meadow hay and corn silage).
References
Bobb, J. D. (1998). Silage feeding International Sheep Letter, 18: 7 – 16 (En).
Broderick, G. A., Koegel, R. G., Walgenbach, R. P., & Kraus, T. J. (2002). Ryegrass or alfalfa silage as the dietary forage for lactating dairy cows. Journal of Dairy Science, 85(7), 1894-1901.
Kirilov, A., Zhelyazkov, T., Krachunov, I., Karlie, L., Iliev, T. & Getov, G. (1998). Influence of alfalfa and peas (green mass and haylage) on the milk productivity of sheep. Jоurnal of mountain agriculture on the balkans, 4, 4 – 9 (Bg).
Ruzic-Muslic, D., Petrovic, M. & Nesic, Z. (2006). New technological approaches in sheep feeding for milk production in the region of Stara Planina. Journal of mountain agriculture on the balkans, 9(4), 624 – 638 (En).
Simeonov, M. (2013). Testing of methods for early weaning of lambs from dairy breeds and feeding systems. PhD Thesis, IFC – Pleven (Bg).
Siqueira, E. D. (2000). Sistemas de confinamento de ovinos para corte do Sudeste do Brasil. Simpósio Internacional sobre Caprinos e Ovinos de corte, 1, 107-117.
Todorov, N. & Alexandrov. A. (2013). How to quickly make dairy farming more profitable. Insemination of sheep at 7-8 months of age, pp.67-72(Bg).
Todorov, N. & Darjonov, Т. (1995). Norms for feeding sheep and goats. Published, Stara Zagora, 216 (Bg).
Todorov, N. & Simeonov, M. (2013). Early weaning of lambs - a significant reserve for increasing income from dairy farming. Animal Husbandry, 5, 40-45(Bg).
Todorov, N., Atanasov, A. P., Ilchev, A., Ganchev, G. G., Mikhailova, G. S., Girginov, D. G., Penkov, D. S., Shindarska, Z. N., Naydenova, J. & Nedyalkov, K. V. (2010). Workshop on animal nutrition. ISBN 978-954-321-733-5, ed. East-West, Sofia (Bg).
Todorov, N., Krachunov, I., Djuvinova, D., & Alexandrov, A. (2007). Guide for Animal Nutrition. Ed. Matkom, Sofia (Bg).
Weissbach, F., & Honig, H. (1996). About the prediction and control of course of fermentation in the ensilage of green fodder from extensive cultivation. Landbauforschung Volkenrode, 1(1), 10-17.
Downloads
Published
Issue
Section
Categories
License
Copyright (c) 2024 Bulgarian Journal of Animal Husbandry
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
