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Author |
Özkan, Ş.; Hill, J.; Cullen, B. |
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Title  |
Effect of climate variability on pasture-based dairy feeding systems in south-east Australia |
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Journal Article |
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Year |
2014 |
Publication |
Animal Production Science |
Abbreviated Journal |
Animal Production Science |
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Volume |
55 |
Issue |
9 |
Pages |
1106-1116 |
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Keywords |
carry-forward surplus; conserved-hay; probability; winter deficit; grown forage consumption; new-zealand; nutritive characteristics; interannual variation; botanical composition; herbage accumulation; crop; systems; cows; management; profit |
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Abstract |
The Australian dairy industry relies primarily on pasture for its feed supply. However, the variability in climate affects plant growth, leading to uncertainty in dryland pasture supply. This paper models the impact of climate variability on pasture production and examines the potential of two pasture-based dairy feeding systems: (1) to experience winter deficits; (2) to carry forward the conserved pasture surpluses as silage for future use; and (3) to conserve pasture surpluses as hay. The two dairy feeding systems examined were a traditional perennial ryegrass-based feeding system (ryegrass max. – RM) and a system that incorporated double cropping into the perennial ryegrass pasture base (complementary forage – CF). The conditional probability of the RM and CF systems to generate pasture deficits in winter were 94% and 96%, respectively. Both systems could carry forward the surplus silage into the following lactation almost once in every 4-5 years with the RM system performing slightly better than the CF system. The proportions of the grain-based concentrates fed in the two systems were 25% and 27% for the RM and CF systems, respectively. This study suggests that double-cropping systems have the potential to provide high-quality feed to support the feed gaps when pasture is not available due to increased variability in climatic conditions. |
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2015-09-23 |
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1836-5787 |
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MA @ admin @ |
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4689 |
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Author |
Vitali, A.; Bernabucci, U.; Nardone, A.; Lacetera, N. |
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Title |
Effect of season, month and temperature humidity index on the occurrence of clinical mastitis in dairy heifers |
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Journal Article |
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Year |
2016 |
Publication |
Advances in Animal Biosciences |
Abbreviated Journal |
Advances in Animal Biosciences |
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Volume |
7 |
Issue |
03 |
Pages |
250-252 |
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2040-4700 |
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LiveM, ft_macsur |
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MA @ admin @ |
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4866 |
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Bannink, A.; Dijkstra, J. |
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Title |
Effects of roughage characteristics on enteric methane emission in dairy cows |
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Journal Article |
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Year |
2016 |
Publication |
Advances in Animal Biosciences |
Abbreviated Journal |
Advances in Animal Biosciences |
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Volume |
7 |
Issue |
03 |
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229-230 |
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MA @ admin @ |
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4875 |
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Bartley, D.J.; Skuce, P.J.; Zadoks, R.N.; MacLeod, M. |
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Title |
Endemic sheep and cattle diseases and greenhouse gas emissions |
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Journal Article |
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Year |
2016 |
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Advances in Animal Biosciences |
Abbreviated Journal |
Advances in Animal Biosciences |
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7 |
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03 |
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253-255 |
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2040-4700 |
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LiveM, ft_macsur |
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MA @ admin @ |
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4865 |
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van der Linden, A.; van de Ven, G.W.J.; Oosting, S.J.; van Ittersum, M.K.; de Boer, I.J.M. |
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Title |
Exploring grass-based beef production under climate change by integration of grass and cattle growth models |
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Journal Article |
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2016 |
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Advances in Animal Biosciences |
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Advances in Animal Biosciences |
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7 |
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03 |
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224-226 |
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2040-4700 |
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LiveM, ft_macsur |
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MA @ admin @ |
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4877 |
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