WINTER GRAZING VERSUS SUPPLEMENTS - CHEAPER DAIRYING SYSTEMS
نویسندگان
چکیده
منابع مشابه
Programming cheaper dependable systems
Services must be dependable if they are to deliver the benefit that justifies the cost of deploying them. Services must be sufficiently dependable for their purpose, but no more costly than is necessary to achieve that level of dependability. This document describes some work on identifying programming concepts that can be exploited to reduce the cost of dependable systems. This includes both t...
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Two experiments at 2 Nebraska locations evaluated effects of heifer development system on growth and pregnancy rate. In Exp. 1, heifers (n=270, BW=225 ± 2 kg) grazed winter Sandhills range (WR) or west central Nebraska corn residue (CR) with a supplement (0.45 kg/animal; 31% CP; 80 mg·animal(-1)·d(-1) of monensin). In Exp. 2, heifers (n=180, BW = 262 ± 3 kg) grazed eastern Nebraska WR or CR wit...
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Two hundred ninety-nine Angus-based, nulliparous heifers (253 ± 2 kg initial BW) from 3 production years were utilized to compare traditional postweaning dry lot (DL) development with a more extensive winter grazing system utilizing a combination of corn residue and winter range (EXT). Heifers developed in the DL were offered a common diet after the weaning period for 208 d in yr 1, 194 d in yr...
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Two trials conducted in 1996-97 measured BW and body condition score changes of cows fed different sources of degradable intake protein, including dried poultry waste and soybean meal, while grazing low-quality winter forages. In Trial 1, 60 spring-calving cows (5 yr; 555 kg) were used in an individual supplementation trial. Cows were gathered three times a week, sorted into individual pens, an...
متن کاملCan a Winter-sown Catch Crop Reduce Nitrate Leaching Losses after Winter Forage Grazing?
Direct grazing of winter forage crops to feed non-lactating, pregnant dairy cows prior to calving is a common management practice in the New Zealand South Island. However, the high crop yields per hectare grazed, combined with a high stocking density of cows, means this potentially leads to large amounts of urinary nitrogen (N) deposited on bare, wet soil, that in turn, could lead to high nitra...
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ژورنال
عنوان ژورنال: Proceedings of the New Zealand Grassland Association
سال: 1988
ISSN: 1179-4577,0369-3902
DOI: 10.33584/jnzg.1988.49.1805