@conference {40572,
	title = {Some effects of feeding pasture silage as a supplement to pasture on reproductive performance in lactating dairy cows},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {54},
	year = {1994},
	month = {Jan},
	pages = {95-98},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {Supplementation of a ryegrass/white clover pasture diet with pasture  
silage is a common management practice in New Zealand dairy herds.  The  
effect of this supplementation during early lactation on reproductive  
performance has not been investigated.  Five herds of 20 cows were formed  
before calving commenced on June 1 1992.  From August 5 to September 4,  
two of these herds were fed 5 kg dry matter/cow/day of pasture silage in  
addition to the ryegrass/white clover pasture offered to all herds.  Pasture  
silage supplementation did not alter the intervals from calving to first  
ovulation, first oestrus, or to conception.  However, it reduced the first  
service conception rate(37.5\% vs 53.3\%; (sed = {\textpm} 10.0\%), for pasture and  
silage and pasture only cows; respectively). 
 
A positive effect on reproductive performance of pasture silage  
supplementation was not demonstrated in this trial},
	issn = {1176-5283},
	author = {McDougall S and Clark DA and Macmillan KL and Williamson NB}
}
