TY  - JOUR
T1  - Effect of Infrequent Wheat Pasture Supplementation on <i>In vivo</i> DM and
NDF Digestibility and Nitrogen Retention of Pregnant Beef
Cows Consuming Deferred Sorghum
AU - Arias, Sonia AU - Freddi, Angel Javier AU - Piazza, Ana Maria AU - Arzadun, Martin Juan AU - Giles, Pamela Yanina 
JO  - Journal of Animal and Veterinary Advances
VL  - 14
IS  - 12
SP  - 351
EP  - 356
PY  - 2015
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2015.351.356
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2015.351.356
KW  - Low quality forage
KW  -digestibility
KW  -protein
KW  -nitrogen
KW  -cow
KW  -supplementation
AB  - An <i>In vivo</i> study was performed using 8 British-breed, eighth-month gestating (420&plusmn;15 Kg of BW)
beef cows to determine the effect of infrequent wheat pasture supplementation on <i>In vivo</i> Organic Matter (OM)
and Nitrogen Detergent Fiber (NDF) digestibility and Nitrogen Retention (NR). Treatments consisted on
anunsupplementedcontrol (Deferred sorghum, DS) and DS plus fresh wheat forage (DSW) offered three times
per week. Cows were allotted in a completed randomized design for a period of 17 day. DS intake decreased
(p&lt;0.05) with CP supplementation, total OM Intake (OMI) was not different (p = 0.18) between treatments while
NDF intake was greater (p&lt;0.05) in DS than in DSW. Apparent total-tract OM Digestibility (OMD) was higher
(p&lt;0.05) in DSW than in DS and apparent total-tract NDF Digestibility (NDFD) did not differ among treatments.
N intake was greater in supplemented than in control cows. Feces and urine N did not differ between treatments
(p = 0.27) and NR was higher in DSW. NR expressed as percentage of N consumed was not different between
treatments. These results suggest that wheat pasture (18.4% PC and 45.6% NDF) can be used as CP supplement
for cows consuming low quality forage even if it is offered three times per week.
ER  -