Comportamento ingestivo de cordeiros Santa Inês alimentados com resíduo de cervejaria desidratado

Gonçalves, Alelaide; Pimentel, Patrícia Guimarães; Gomes, Silas Prímola; Moreira, Guilherme Rocha; Feitosa, Mara Sampaio; Araújo, M. S. de; Soares, Sandra de Aguiar; Cardoso, S. C.; Barroso, Mmb

doi:10.1590/1678-4162-10298

Cited by 1 publication

(1 citation statement)

References 14 publications

(7 reference statements)

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“…These results corroborate those of Bürger et al (2000) and Missio et al (2010), who observed a decreasing linear eff ect on the time spent feeding and ruminating when they increased the amount of added concentrate in the diet of Holstein calves (30%, 45%, 60%, 75% and 90%) and bulls in confi nement (22%, 40%, 59% and 79%). However, their results diff er from those of Gonçalves et al (2019), who found an increasing linear eff ect for the addition of dehydrated brewery residue in the concentrate portion of the diet, and pointed out that this result could be a function of the increase in NDF content, since the time spent ruminating increases linearly with increases in the level of this nutrient.…”

Section: Resultsmentioning

confidence: 65%

Ingestive behaviour in heifers fed diets with increasing levels of babassu cake

Castro,

Borges,

Miotto

et al. 2024

RCA

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The aim of this study was to assess the eff ect of increasing levels of babassu cake on the ingestive behaviour of dairy heifers in confi nement. Twenty-four heifers with an average initial weight of 190.8 + 40.8 kg were fed diets containing babassu cake (0, 100, 200, 300 mg kg -1 (dry matter basis) as a substitute for sugar cane, in a completely randomised design with four treatments and six replications. Observations were made every fi ve minutes for 24 hours, assessing rumination, feeding, idle time, sleeping and other activities, in addition to the frequency with which the heifers searched for water, urinated and defecated. The time spent on feeding and rumination decreased by 0.1138% and 0.3106%, respectively, for every 10 g kg -1 substitute, while idle time increased by 0.3368% for every 10 g kg -1 substitute. The time spent sleeping and on other activities was not affected. Longer feeding times were seen whenever feed was offered, with more rumination activity at night. There was no effect on the specific activities (urination, defecation or drinking); however, urination and drinking were affected by the period, and was more frequent during the day.There was a linear increase in intake, and in feed and rumination efficiency for dry matter and neutral detergent fibre, with a reduction in total chewing time. Substituting babassu cake for sugar cane affects both the ingestive behaviour of dairy heifers and the rumination process as it does not stimulate chewing.

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Section: Resultsmentioning

confidence: 65%