The Farmers Mart Aug/Sep 2013 - Issue 29 | Page 46
PIGS
HEATWAVE LOWERS PIG PERFORMANCE
This summer’s heatwave conditions have highlighted problems resulting from wide temperature fluctuations in finishing houses, says Tim Miller, environmental specialist with ARM Buildings. Sharp differences between day and night-time temperatures can stress pigs, lower performance and trigger health problems, he says. Problems tend to occur in houses where pigs are nearing their end weights, and this is exacerbated in buildings r V?????????????WB7?7FV?v??6?&W7V?B????v?fW&vR?fWvV?v?Bf?"F?R??W6R?( ?F?R?VB?WGWBg&???&vR?V?&W'2?b?w2?V&??r?r?2V??&??W2?( ??R6?B?&F???7V?FVB??FW"??W6W2&R??&RgV??W&&?R?W7V6????bF?W?&R??&?fV?F??FVB?'WB6?F??r?2?VffV7B?F???W7V6???v?F?4?b'V??F??w2v??6?&R6?V?FW&VBg&??F?Rv??B?( ?v^( ?fR&V6?&FVBFV?W&GW&W22??v?232?R +2?B2??r2# +2??6?FR??W6W2v?F???&??W"W&??B'WB??WGV??f?V7GVF???26??VW??r?w2??F?V?"F?W&???WWG&????R&WGvVV?F?V?"WW"?B??vW"7&?F?6?FV?W&GW&R?2F?R???BfV?F??F????2F?R?W??6?2?"???W"???vWfW"???F?R'6V?6R?b?"?6??F?F?????r?B6?( ?B??vW"F?RFV?W&GW&R&V??rF?R&Wf???r?&?V?BFV?W&GW&R?( ?vR&RG'???rF?f??B?gB?b??&RF??F?&VRFVw&VW2?fW"?&?V?B?( ??R???G2?WB?( ?6??R6??F??V?F?7W?W'2??7F??7?7FV?2v?F???bF?R66?G??bF??6R??F?RT???VF??rF?FV?W&GW&R?gG22??v?2bFVw&VW2?'WBvRG'?F???BF?RFV?W&GW&R?gB?( ???6???W&F???v?F?6??G&??7V6??7G2?f&?W??$?'V??F??w2?2FWfV????rf??6??G&??&?w&?v??6?v?????FW&FRF?R&FR?bFV?W&GW&RG&????vvW&?W2GW&??rF?RWfV???r?????r6??F?F???2??&R6??f?'F&?Rf?"F?R?w2?f&?W??2??F?????F?RF?6?6??G&??7?7FV?6??VB( ?&FR??N( ??B????F?&??rg&??f&?WG??bf&?2?2V?&?VBF??2F?&R&Vf??VB?( ?G'???rF?f??B?gB?b??&RF??F?&VRFVw&VW>( ??&RWfV???&R6WfW&R?( ??R6?B?( ??R6??fR3 +2BB???Bl+2B???( 2BFVw&VRG&????W7Bf?fR??W'2?F?W&R?2Wf?FV?6RF?6??rF?B&?r7v??w2??FV?W&GW&R?fRw&VFW"??7B???rW&f?&??6RF????v?FV?W&GW&R???R?( ???F??B?r&?GV6W'2vV?6??W2%54&?f??bw&?V?B?'&V???rV?????VW&??rf'&?v??rV??Bv??6??2&VV?FW6?v?VBv?F?F?R??v?W7B????vV??&V??r6??6?FW&F???2????B?2&V6V?fVB?ff?6??&6???rg&??F?R%54??B6?&R&WfV?VB?F?R3c +g&VVF??f'&?vW"?7&VFVB'?7Fff?&G6??&R?&6VB?F??B?r&?GV6W'2?????2?????fF?fR6??6WB??f'&?v??rV?FW6?v????v??rF?R6?rF???fR&?V?Bg&VV?v???R6??F??V??rF?&?FV7BF?R?v?WG2?BF?R??F?W'2?G&F?F????f'&?v??r7&FW2vW&R&??VB'?F?R%54V?FW"F?V?"g&VVF??f??Bf&?77W&?6R6?FW2&V6W6RF?W?&WfV?BF?R6?rg&??GW&???r&?V?B?B??????r??FVB??fV?V?Bf?'v&G2?B&6?v&G2??( ?2?FW&?F?fR?v??6?&?f?FW2F?R6?rv?F?w&VFW"g&VVF??v???R???F????rf??G&??B??&?vvW"F??G&F?F????f'&?v??r7&FW2??2??r&VV??ff?6???6??f?&?VB2?VWF??rF?R%54 ( ?2vV?f&R7F?F&G2f?"?w2??#"7&?FW&??7V6?f?6F???2??6?VFRV?7W&??rf'&?v??rV'FW'2&RFW6?v?VBF??ffW"6??Rf?&??b&?FV7F???f?"?v?WG2g&??7'W6???r????F????rFV?W&GW&R7V?F&?Rf?"?v?WG2'?&?f?6????b7W?V?V?F'??VF??r?BV?7W&??rF?Bf'&?v??r7&FW2V?&?RF?R6?rF?GW&?&?V?BV6???F?R3c +g&VVF??f'&?vW"?F?RFW6?v?FV??VB'???B??'F??&?W"?v?W2v?&W???BG&F?F????6??7G&????rV??G2W6VBv?FV?7&?72F?RT??F?RW6W"?g&?V?F?7?7FV??2V6??F?W7F&?RV????r&'2F????r?r&?GV6W'2F?6??f??RF?R6?r???VF?FV?&??"F?f'&?v??r?gFW"6?R?2f'&?vVB?F?R&'2&R??fVB&6?F???7&V6R?W"76Rv???RF?R6????r6?FW2?bF?R&V6??VBV????r&'2v?fW2?W"7W?'B?6??V?B6?Rv?B?B?v?V?6?R?W2F?v??F?R?v?WG26?6fV???fR?WBF?Rv??bF?R6?r'?v???rF?F?RV?B6V7F???2?bF?RV?2?BV????FF?F?????VBF?&?Vv?vFW"?VFV@???V?2?F?R??&?fVBvV?f&R?bF?R6?r?V?2F?W?&R?Vf?W"BvV???r?&?f?F??r??&?fVBV6????2&V?Vf?G2??'F??6???V?FVC?( ?v^( ?fR???v?f?"6??RF??RF?B?W"3c +g&VVF??f'&?vW"'&V?2?Wrw&?V?B???rf&??r7F?F&G2?B?( ??'6??WFV?FV?v?FVBF?B?W"Vff?'G2?fR??r&V6V?fVBF?R?ff?6??6V??b&?f?g&??F?R%54?C`??Vr?6W#2f&?W'4?'@??F?&VB??&R?f?6?Bwwr?f&?W'2??'B?6??V???