Co-Authors:
Miron, J., Department of Ruminant Sciences, Institute of Animal Sciences, PO Box 6, Bet Dagan 50250, Israel
Weinberg, Z.G., Forage Preservation Unit, Agricultural Research Organization (ARO), PO Box 6, Bet Dagan 50250, Israel
Chen, Y., Forage Preservation Unit, Agricultural Research Organization (ARO), PO Box 6, Bet Dagan 50250, Israel
Miron, D., Department of Ruminant Sciences, Institute of Animal Sciences, PO Box 6, Bet Dagan 50250, Israel
Raviv, Y., Massuot Yitzhak Feeding Center, Moshav Massuot Yitzhak, Sade-Gat 79858, Israel
Bloch, A., Massuot Yitzhak Feeding Center, Moshav Massuot Yitzhak, Sade-Gat 79858, Israel
Yosef, E., Department of Ruminant Sciences, Institute of Animal Sciences, PO Box 6, Bet Dagan 50250, Israel
Nikbahat, M., Department of Ruminant Sciences, Institute of Animal Sciences, PO Box 6, Bet Dagan 50250, Israel
Zenou, A., Department of Ruminant Sciences, Institute of Animal Sciences, PO Box 6, Bet Dagan 50250, Israel
Daklo, M., Department of Field Crops, Institute of Plant Sciences, Agricultural Research Organization (ARO), Bet Dagan 50250, Israel
Nashef, K., Department of Field Crops, Institute of Plant Sciences, Agricultural Research Organization (ARO), Bet Dagan 50250, Israel
Kushnir, U., Department of Field Crops, Institute of Plant Sciences, Agricultural Research Organization (ARO), Bet Dagan 50250, Israel
Abstract:
This study presents a novel method for use of the wild plant species Cephalaria joppensis (CJ) as agricultural forage for ruminants. Domesticated CJ tends to have higher crop mass yield per hectare than a commercial wheat variety (W) but is similar in in vitro dry matter (DM) digestibility. This study was composed of 3 experiments. Experiment 1 aimed to measure effects of ensiling CJ versus W in packed polyethylene-wrapped bales. Three types of ensiled bales were produced for each plant: 1) direct-cut CJ versus W packed solely; 2) direct-cut CJ versus W mixed as sole roughage source together with dietary ingredient and packed in bales to create CJ total mixed ration (CJ-TMR) or W-TMR; 3) CJ silage versus W silage mixed as one-third of dietary roughage source together with two-thirds sorghum (S) silage and additional dietary ingredients and packed in bales to create CJ-S-TMR or W-S-TMR. Data showed that packing and wrapping created anaerobic conditions within the 4 types of TMR bales while reducing pH (4.12 to 4.37). Dry matter loss during ensilage was higher for the 2 types of TMR containing W compared with CJ. Ensilage decreased soluble nitrate content as well as yeast and mold contamination, and the 4 types of TMR bales were characterized by a long outdoor shelf life (3 mo) and high stability under aerobic exposure. Experiment 2 aimed to measure the intake and digestibility by sheep of the 4 types of packed TMR after 90 d of ensiling. Data demonstrated higher voluntary intake of the CJ-TMR compared with the other TMR types. The CJ-TMR was characterized by higher digestibility of DM, crude protein, and neutral detergent fiber components compared with the CJ-S-TMR. Experiment 3 examined intake, digestibility, and milk production by 21 pairs of lactating cows individually fed CJ-S-TMR versus W-S-TMR. Similar intake (21.6 to 22.0. kg/d) and digestibility of DM and crude protein were observed in cows fed the 2 TMR types (68 to 69% and 66 to 68%, respectively). However, neutral detergent fiber and cellulose digestibility were slightly higher in the cows fed W-S-TMR and this was reflected in a small increase in their milk and energy-corrected milk yield (36.5 and 31.4. kg/cow per day, respectively) compared with cows fed CJ-S-TMR (35.5 and 30.4. kg/cow per day, respectively). Results demonstrate that direct-cut CJ used as is, or CJ silage can be included and ensiled in TMR bales for feeding productive ruminants as a substitute for wheat silage. © 2012 American Dairy Science Association.
תפריט נגישות
ניגודיות עדינה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם
