Effects of diet and roughage quality, and period of the day on diurnal feeding behaviour patterns of sheep and goats under subtropical conditions

OBJECTIVE: This study investigated the effect of diet and roughage quality (RQ) on dry matter intake, duration and number of daytime and night-time eating bouts, idling sessions and ruminating activities in small ruminants

Bibliographische Detailangaben
Veröffentlicht in:Asian-Australasian journal of animal sciences. - 1998. - 32(2019), 5 vom: 28. Mai, Seite 675-690
1. Verfasser: Moyo, Mehluli (VerfasserIn)
Weitere Verfasser: Adebayo, Rasheed Adekunle, Nsahlai, Ignatius Verla
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Asian-Australasian journal of animal sciences
Schlagworte:Journal Article Feed Quality Feeding Behaviour Goats Predation Risk Sheep
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245 1 0 |a Effects of diet and roughage quality, and period of the day on diurnal feeding behaviour patterns of sheep and goats under subtropical conditions 
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520 |a OBJECTIVE: This study investigated the effect of diet and roughage quality (RQ) on dry matter intake, duration and number of daytime and night-time eating bouts, idling sessions and ruminating activities in small ruminants 
520 |a METHODS: In Exp 1 and 2, RQ was improved by urea treatment of veld hay, while diet quality was improved by supplementing with Lucerne hay (Exp 3), sunflower meal and lespedeza (Exp 4), fish meal (Exp 5a), and sunflower meal (Exp 5b). In all experiments goats and sheep were blocked by weight and randomly allocated to experimental diets. Day-time (06:00 to 18:00 h) and night time (18:00 to 06:00 h) feeding behaviour activities were recorded 
520 |a RESULTS: RQ affected rumination index in Exp 1, but not in Exp 2, 3, and 5. Time spent eating and ruminating was affected by RQ (Exp 1, 3, and 4), period of day (all experiments) and their interaction (Exp 1). Intake rates (g/bout and g/min) were similar across diets. Period of day affected the duration of rumination sessions (Exp 1, 2, and 3); diet or RQ affected the duration of eating bouts (Exp 3) and rumination sessions (Exp 1 and 2). RQ had a significant effect on the duration of eating sessions in Exp 3 only, whilst period of day affected this same behaviour in Exp 2 and 3. Generally, goats and sheep fed on roughage alone ruminate at night and eat more during the day but those fed a roughage and supplemented with Lucerne hay spent more time ruminating than eating. Time spent eating and ruminating had positive correlations to crude protein and feed intake. Intake rates had strong positive correlations to intake 
520 |a CONCLUSION: Chewing time, number of eating and ruminating sessions, and duration of eating bouts are physiologically controlled in small ruminants, though chewing time requires isometric scaling during modelling of intake 
650 4 |a Journal Article 
650 4 |a Feed Quality 
650 4 |a Feeding Behaviour 
650 4 |a Goats 
650 4 |a Predation Risk 
650 4 |a Sheep 
700 1 |a Adebayo, Rasheed Adekunle  |e verfasserin  |4 aut 
700 1 |a Nsahlai, Ignatius Verla  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Asian-Australasian journal of animal sciences  |d 1998  |g 32(2019), 5 vom: 28. Mai, Seite 675-690  |w (DE-627)NLM098195883  |x 1011-2367  |7 nnns 
773 1 8 |g volume:32  |g year:2019  |g number:5  |g day:28  |g month:05  |g pages:675-690 
856 4 0 |u http://dx.doi.org/10.5713/ajas.17.0901  |3 Volltext 
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