Effects of Frequency of Offering and Type of Supplemental Forage on Intake and Digestion in Calves Consuming Endophyte-Infected Fescue Hay
| Autor: | A. L. Jones, K. W. Beers, S. R. Stokes, E. L. Piper, A. L. Goetsch |
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| Rok vydání: | 1988 |
| Předmět: |
Male
Food Contamination Forage Morning Meals Poaceae Body weight Endophyte Animal science Latin square Genetics Animals Dry matter Triticum biology General Medicine biology.organism_classification Animal Feed Agronomy Food Microbiology Hay Cattle Digestion Female Animal Science and Zoology Food Science |
| Zdroj: | Journal of Animal Science. 66:228-236 |
| ISSN: | 1525-3163 0021-8812 |
| Popis: | Two experiments were conducted to determine the effects of frequency of offering and type of supplemental forage on intake and digestion in calves consuming endophyte-infected fescue hay (I). In Exp. 1, five Holstein steers, averaging 128 kg body weight (BW), were used in a 5 X 5 Latin square experiment. All steers were given free access to I in the afternoon. Morning meals consisted of 1) ad libitum access to I daily (control), 2) .5% BW of Bermuda-grass hay (BG) daily, 3) 1.0% BW of BG every 2nd d, 4) 1.5% BW of BG every 3rd d and 5) 2.0% BW of BG every 4th d. Steers receiving BG consumed less (P less than .01) I and more (P less than .01) total dry matter (DM) than did steers given I alone. Within treatment, I intake was similar (P greater than .10) among days of the feeding cycle without BG. Organic matter (OM) digestion was lower (P less than .05) with than without BG. In Exp. 2, 12 beef calves (Angus and Hereford X Angus; 6 mo of age, 155 kg initial BW) were used in a completely randomized-design experiment. Calves were given ad libitum access to I daily (control) or to BG or wheat hay (WH) on d 1 and I the following 3 d. Hay (I, BG or WH) intake d 1 of the feeding cycle was higher for BG and WH than for the control treatment (16 and 45%, respectively) and higher for WH than BG (25%; P less than .05).(ABSTRACT TRUNCATED AT 250 WORDS) |
| Databáze: | OpenAIRE |
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