&lt;b&gt;Ingestive behavior of crossbred heifers in four seasons related to the structure of stargrass pasture

Campana, Ludmila Lacerda; Modesto, Elisa Cristina; Barros, Ana Carolina; Zanella, Pablo Giliard; Carvalho, Carlos Augusto Brandão de; Filho, Sérgio Traballi Camargo

doi:10.4025/actascianimsci.v37i1.24787

Cited by 3 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Castro et al (2009), working with heifers, found similar behaviour and explained it by the greater temperature and sunshine at these times. The ingestive behaviour of ruminants has a heterogeneous nychthemeral distribution and is aff ected by such factors as management, nutrition and environmental conditions, especially temperature (CAMPANA et al, 2015), which would explain the results for idle time.…”

Section: Variablementioning

confidence: 99%

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

Castro,

Borges,

Miotto

et al. 2024

RCA

View full text Add to dashboard Cite

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.

show abstract

Section: Variablementioning

confidence: 99%

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

Castro,

Borges,

Miotto

et al. 2024

RCA

View full text Add to dashboard Cite

show abstract

“…Considering the different chemical and physical composition from conventional foods, the use of alternative food should be accompanied by assessments of the feeding behavior of the animals, as these serve as a tool for evaluating diets, allowing feeding management to achieve better performance, as cattle respond differently to various types of food, changing the feeding habits and production levels (Antunes et al, 2014;Pina et al, 2006;Riaz, Südekum, Clauss, & Jayanegara, 2014;Campana et al, 2015;Pimentel et al, 2015;Silva et al, 2005a;b).…”

Section: Introductionmentioning

confidence: 99%

<b>Feeding behavior of F1 Holstein x Zebu lactating cows fed increasing levels of banana peel

Pimentel

Júnior

Melo

et al. 2016

Acta Sci. Anim. Sci.

View full text Add to dashboard Cite

ABSTRACT. This study evaluated the feeding behavior of F1 Holstein x Zebu cows fed increasing levels of banana peel. Diets contained 0, 15, 30, 45 and 60% replacement of sorghum silage with banana peel. The experimental design was two 5x5 Latin squares. Cows were subjected to visual observation after adaptation of each trial period. The times spent in feeding (4.13 to 5.58 hours day -1 ) and in idle (10 to 12.53 hours day -1 ) presented quadratic effect. The time spent ruminating, number and duration of rumination periods, chews per cud, and numbers of cuds per day were not affected by treatments. The total chewing time showed a quadratic effect, with peak at 18.58% replacement. The banana peel levels did not affect consumption, rumination and chewing neutral detergent fiber. Intake, rumination and chewing of dry matter showed a decreasing linear effect. The replacement of sorghum silage with banana peel up to 60% in the diet for lactating cows reduces the time spent in feeding and improves feeding and rumination efficiencies of dry matter, keeping the milk production of cows.Keywords: banana plantations, co-product, ethology, animal nutrition.Comportamento ingestivo de vacas F1 Holandesas x Zebu em lactação alimentadas com crescentes níveis de casca de banana RESUMO. Este trabalho foi realizado para avaliar o comportamento ingestivo de vacas F1 Holandesas x Zebu alimentadas com crescentes níveis de casca de banana. As dietas foram constituídas de 0, 15, 30, 45 e 60% de substituição da silagem de sorgo pela casca. O delineamento experimental foi dois quadrados latinos 5 x 5. As vacas foram submetidas à observação visual após período de adaptação de cada período experimental. Os tempos despendidos com alimentação (4,13 a 5,58 horas dia -1 ) e ócio (10 a 12,53 horas dia -1 ) apresentaram efeito quadrático. O tempo gasto com ruminação, número e duração dos períodos de ruminação, mastigações por bolo e bolos ruminados por dia não foram influenciados pelos níveis de casca. O tempo total de mastigação apresentou efeito quadrático, com ponto máximo no nível de 18,58%. Os níveis de casca de banana não influenciaram consumo, ruminação nem mastigação da fibra em detergente neutro. Consumo, ruminação e mastigação da matéria seca apresentaram efeito linear decrescente. A substituição da silagem de sorgo em até 60% por casca de banana na dieta de vacas em lactação reduz o tempo de alimentação e melhora as eficiências de alimentação e ruminação da matéria seca, mantendo a produção de leite das vacas.

show abstract