Performance of calves on diets containing Amaranthus leaf meal

Odwongo, Willie O.; Mugerwa, J.S.

doi:10.1016/0377-8401(80)90029-2

Cited by 7 publications

(2 citation statements)

References 16 publications

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“…Cheeke et al (1981) reported inferior weight gains in rats fed leaf protein concentrate prepared from several Amaranthus species and cultivars within species. On the other hand, feeding studies with calves (Odwongo and Mugerwa, 1980) and sheep (Marten and Andersen, 1975) indicated that the leaves of A. hybridus L. and A. retroflexus L., respectively, promoted normal growth compared with that obtained from oat or alfalfa forage. We are aware of no data on the nutritional value of the Zimbabwe cultivar used in the present experiment.…”

Section: Ditmussionmentioning

confidence: 99%

Nutritive Value of a Vegetable Amaranth Cultivar for Growing Lambs

Lehmann¹

1989

Journal of Animal Science

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Current interest in amaranth as a food resource for humans and animals has been stimulated by activities in germplasm collection and testing in the U.S. Fifteen growing, intact male lambs weighing 18.7 kg were assigned randomly to three diets (five lambs/diet) for a 14-d growth trial followed immediately by an 8-d (4-d adjustment, 4-d collection) digestion and N balance trial to determine the utilization of the forage component (leaves and stems) of an African cultivar (Zimbabwe cultivar PI 482049, Amaranthus cruentus L.) All diets contained 40.95% ground corn, 8.0% soybean meal and 1.05% mineral-vitamin supplement plus either 50% ground alfalfa hay, 25% ground alfalfa hay plus 25% ground amaranth forage or 50% ground amaranth forage. Lambs had ad libitum access to feed during the growth trial and at 4% of BW daily during the digestion and N balance period. Replacement of half or all the alfalfa in the diet with amaranth had no effect on weight gain or feed utilization. Apparent digestibility of cell contents, NDF, ADF, cellulose, ADL, N and GE and percentage of absorbed N retained did not differ among the three diets. The amaranth vegetable cultivar Zimbabwe PI 482049 promoted weight gain and feed utilization equal to that obtained with alfalfa as the sole forage for growing lambs. Additional research is needed to evaluate further the potential role of forage/vegetable amaranth as an animal feed resource.

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Section: Ditmussionmentioning

confidence: 99%

Nutritive Value of a Vegetable Amaranth Cultivar for Growing Lambs

Lehmann¹

1989

Journal of Animal Science

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“…Several studies (Stordahl et al, 1999; Lehmann, 1990; Pond and Lehmann, 1989; Senft, 1979; Cheeke and Bronson, 1979; Odwongo and Mugerwa, 1980; Yue et al, 1987) have shown that amaranth nutritional qualities are superior to those of the common cereals and forage crops. Arguably, the most important nutritional quality of a grain is its protein content and quality.…”

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Forage Nutritive Value of Various Amaranth Species at Different Harvest Dates

et al. 2001

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Complete information on forage quality characteristics of amaranth is unavailable. This study evaluated the forage quality of various amaranth accessions at different harvest dates. Seven accessions from the North Central Plant Introduction Station were established in June 1997 and June 1998 near Boone, IA. Subplots were harvested six times at 2‐wk intervals beginning 42 d after planting (DAP). In vitro dry matter digestibility (IVDMD), neutral detergent fiber (NDF), crude protein (CP), nitrate‐nitrogen, acid detergent fiber (ADF), acid detergent lignin (ADL), protein and fiber digestion, and undegradable intake protein (UIP) were determined. Averaged over accessions, IVDMD decreased (P < 0.05) from 780 g kg−1 at 42 DAP to 680 g kg−1 at 112 DAP. Digestibility ranged from 590 to 790 g kg−1 Averaged over accessions at 42 DAP, CP was 270 g kg−1 then decreased to 100 g kg−1 at 112 DAP. Neutral detergent fiber increased from 310 g kg−1 at 42 DAP to 430 g kg−1 at 112 DAP. Averaged over harvest date, Amaranthus cruentus (Zimbabwe) had the highest NDF (390 g kg−1), and A. hybrid (Puebla, Mexico) had the lowest (330 g kg−1). Amaranthus cruentus (Zimbabwe), A. cruentus (Rwanda), and A. hybrid (Puebla, Mexico) had UIP averaging 25, 22, and 16%, respectively, of total crude protein after 16 h of digestion. Forage quality of the accessions at most harvest dates was consistent with what would be expected for relatively good quality forage, although high nitrate levels are a concern.

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