Étude De Quelques Relations Entre Le Mode De Conservation Du Fourrage Ingéré Et Le Comportement Alimentaire Et Mérycique Des Moutons

Dulphy, J. P.; Boisseau, J.; Bousquet, H.; L'hôtelier, L.

doi:10.1051/animres:19720309

Cited by 5 publications

(2 citation statements)

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“…Steers fed silage had more rumination periods than those fed hay (P < .008), whereas the mean duration of rumination periods did not differ. Feeding timothy hay and its corresponding silage to sheep, Dulphy (1972) reported similar trends for the number of meals, the average duration of meals, and the duration of meals following feed distribution but opposite effects for the number of rumination periods. In that study, the lower consumption of silage than of hay may explain the concomitant decrease in the number of rumination periods.…”

Section: Resultsmentioning

confidence: 82%

“…However, Burns et al (1993) reported no difference in DMI or DM digestibility by steers of switchgrass hay artificially dried or ensiled directly when harvested either in the late-boot or the fully headed stages of maturity despite wide differences in chemical composition. Conversely, Dulphy (1972) found sheep consumed greater amounts of timothy hay than of the corresponding silage cut in the late-boot stage. Morphology, abrasiveness, DM content, and chemical composition are some of the factors influencing feed consumption.…”

Section: Resultsmentioning

confidence: 84%

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Intake and chewing behavior of steers consuming switchgrass preserved as hay or silage.

Luginbuhl

Pond

Burns

et al. 2000

Journal of Animal Science

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Effect of preservation method on intake and chewing behavior was examined using a first, late vegetative harvest (mid-June) of Kanlow switchgrass (Panicum virgatum L.). For silage (S), forage was harvested with a commercial field chopper (1.5 to 4 cm average chop length) and ensiled directly in silos 1.2 m in diameter and 3.6 m in height. For hay (H), forage was harvested with a flail-chopper (7 to 15 cm average chop length) and cured as hay in a drier at 77 degrees C. Diets of H and S were fed to six Hereford steers (338+/-5 kg) in a single crossover experiment. Chewing behavior was monitored for 4 d with a computerized system. At feeding, H was higher in DM and contained greater concentrations (DM basis) of NDF, CP, and hemicellulose, but lower concentrations of ADF and cellulose, and had lower in vitro DM disappearance values. Steers fed S had higher intakes of DM (P < .02) and NDF (P < .04) and consumed less water from the water supply (P < .01) than animals fed H. However, total amount of water (from water supply and feed) consumed per kilogram of DMI did not differ between diets. Crude protein intake was similar between diets. Preservation method had no effect on eating time, number of boli ruminated, bolus duration, and number of rumination chews per bolus. Steers fed S made fewer eating chews (P < .10) and ruminated for a longer time (P < .05) while making a greater number of rumination chews (P < .04) than steers fed H. Rumination intercycle time was slightly shorter in steers fed H (P < .05) than in steers fed S. When expressed per kilogram of NDF intake, steers fed S spent less time eating (P < .03) and made fewer eating chews (P < .02) than steers fed H; however, rumination time, number of rumination chews, and number of boli ruminated were not affected by preservation method. Steers fed S ingested feed at a greater rate (P < .03), excreted smaller fecal particles (P < .03), had meals of shorter duration (P < .06), spent less time eating during main meals (meals following feed distribution: P < .05), had more rumination periods (P < .01), and a shorter morning (P < .06) latency time (interval between end of main meal and onset of rumination) than steers fed H. These results indicate that preservation method with its concomitant differences in chop length affected forage chemical composition and voluntary intake, and that differences in chewing behavior occurred mostly during eating.

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Section: Resultsmentioning

confidence: 82%

Section: Resultsmentioning

confidence: 84%

Intake and chewing behavior of steers consuming switchgrass preserved as hay or silage.

Luginbuhl

Pond

Burns

et al. 2000

Journal of Animal Science

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The role of behavior in sheep production: A review of research

Gonyou

1984

Applied Animal Ethology

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Untersuchungen zum Verzehrs-und Wiederkauverhalten an Schafen

Dittrich

Däberitz

Prediger

et al. 1986

Archiv für Tierernaehrung

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Fertility oriented ewes in the late stage of gestation and during the lactation period received 19 feeding regimes on the basis of straw-concentrate mixtures, which essentially differed in the feedstuff structure. The ewes fed ad libitum on average used between 5 and 6 hours per day feed intake in the 86 measuring periods. The average daily ruminating time ranged from 398 to 502 minutes. An increasing straw content resulted in significantly longer ruminating periods and a higher number of masticatory movements, additional quotas of long straw had non effect. But even the most unfavourable feeding variants (straw-concentrate mixtures with 40% straw meal treated with NaOH) elicited 21 100 ruminating masticatory movements in 5 hours of ruminating. There were no significant differences between the absolute consumption and ruminating activities in the late stage of gestation and the lactation period; with reference to feed and crude fibre intake the ruminating expenditure in the late stage of gestation was always significantly higher. Rations with a low structural effect resulted in a more unbalanced distribution of consumption and ruminating activities in the course of the day than well structured rations.

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Étude De Quelques Relations Entre Le Mode De Conservation Du Fourrage Ingéré Et Le Comportement Alimentaire Et Mérycique Des Moutons

Cited by 5 publications

References 0 publications

Intake and chewing behavior of steers consuming switchgrass preserved as hay or silage.

Intake and chewing behavior of steers consuming switchgrass preserved as hay or silage.

The role of behavior in sheep production: A review of research

Untersuchungen zum Verzehrs-und Wiederkauverhalten an Schafen

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