Comportamento ingestivo diurno de novilhos Nelore recebendo níveis crescentes de suplementação em pastejo de capim-braquiária

Silva, Robério Rodrigues; Prado, Ivanor Nunes do; Silva, Fabyano Fonseca e; Almeida, Vítor Visintin Silva de; Júnior, Hermógenes Almeida de Santana; Queiróz, Augusto César de; Carvalho, Gleidson Giordano Pinto de; Barroso, Daniele Soares

doi:10.1590/s1516-35982010000900028

Cited by 28 publications

(35 citation statements)

References 19 publications

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“…Those results differ from the ones reported by Silva et al (2010), who fed heifers grazing Brachiaria brizantha cultivar Marandu with mineral salt and energy and protein supplementation at the levels of 3, 6 and 9 g/kg of body weight and found a reduction in NDF ingestion due to the observed replacement effect. Over grazing periods, NDF intake increased linearly (P<0.05) by 0.046 kg per day, following the tendency observed in the chemical analyses (Table 2), which presented an increase of 0.57 g/kg more dry matter in the NDF content as the experimental period advanced.…”

Section: Resultscontrasting

confidence: 99%

“…It was found that even with the difference in grazing, the time of rumination did not change, and reduction in grazing time by supplementation with BRM and BRM + MEG increased the idle time of the animals. Silva et al (2010) found variations in grazing and idle activities as the supplementation level increased but with no alteration in rumination time. According to Moreno et al (2008), supplementation with corn meal at the level of 10 g/kg of the body weight for calves grazing year ryegrass decreased grazing time and increased idle time with no effect on rumination, probably in function of the existence of the supplement replacement effect by pasture.…”

Section: Resultsmentioning

confidence: 89%

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Behavior pattern of beef heifers supplemented with different energy sources on oat and ryegrass pasture

et al. 2012

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Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 89%

Behavior pattern of beef heifers supplemented with different energy sources on oat and ryegrass pasture

et al. 2012

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“…The results for grazing time (494 min, on average), were lower than those found by Silva et al (2004), who evaluated the feeding behavior of ¾ Holstein × Zebu heifers on Brachiaria decumbens pasture with levels of supplementation in the trough and found grazing times varying between 10.35 and 11.03 h. The lower values found in the present study are due to the fact that animals remained in the waiting corral after milking, awaiting completion of the milking time for all animals.…”

Section: Resultscontrasting

confidence: 72%

Feeding behavior and responses in grazing lactating cows supplemented with peanut cake

et al. 2015

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-This experiment was conducted to study the substitution of soybean meal with peanut cake in the supplement by assessing the feeding behavior and the interaction between the thermal environment and the physiological responses of eight crossbred cows with an average live weight of 500 kg. Cows were divided into two 4 × 4 Latin squares and managed on pasture. The peanut cake was included at the levels of 0, 330, 660, and 1,000 g kg −1 in the supplement as a replacement for soybean meal. The feeding behavior variables were not affected by the levels of peanut cake. No differences were found for the physiological parameters of the animals with the replacement of soybean meal for peanut cake in the supplements. Peanut cake can replace up to 100% soybean meal in the supplement of grazing lactating crossbred cows without altering the feeding behavior or physiological parameters of the animals.

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“…Nevertheless, the disposal of males of dairy breeds is a practice that is not consistent with the moral and rational purposes that aim the welfare of animals and may thus tarnish the sustainable image and ethics of dairy farming. Several studies have sought techniques to improve the production of these animals (ALVES et al, 2004;SILVA et al, 2007;ZANINE et al, 2006). Based on this, it is concluded that among many factors influencing animal performance, as those related to diet, environmental and management differences, behavioral patterns, in general, serve as a basis to select the best feeding strategy of animals, whether in feedlot or pasture systems.…”

Section: Introductionmentioning

confidence: 99%

<b>Diurnal ingestive behavior of Holstein calves reared in different systems: feedlot or pasture

Segabinazzi

Menezes

Silva

et al. 2014

Acta Sci. Anim. Sci.

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ABSTRACT. This study evaluated the ingestive behavior of Hostein calves kept in two husbandry systems: feedlot or pasture. We examined the ingestive behavior of 11 male non-castrated calves, with average initial age of 75 days, six of which were individually penned, consuming corn silage and concentrate-based diet at a ratio of 40:60 (on a DM basis), and the remainder, on pearl millet pasture (Pennisetum americanum) receiving concentrate supplementation at 1.0% body weight. Evaluations were held from November to February, from 8:00 am to 6:00 pm. Feedlot calves stay longer (p < 0.05) in idle, both in lying and standing positions, while animals on pasture spent more time in eating and ruminating activities. Confined animals performed a higher number of daily meals, but of shorter duration each. In both production systems, rumination activity is preferably performed in lying position, however, rumination time in standing position is about 1.4 times longer for those kept on pasture. Animals kept on pasture show a lower efficiency of DM intake, greater number of ruminated boluses, which were ruminated for less time and with fewer cud chewings.Keywords: ingestive efficiency, idleness, rumination, calves.Comportamento ingestivo diurno de bezerros Holandeses criados em diferentes sistemas: confinamento ou a pasto RESUMO. Objetivou-se avaliar o comportamento ingestivo de bezerros Holandeses mantidos em dois sistemas de criação: confinamento ou a pasto. Foi observado o comportamento ingestivo de 11 bezerros machos, não castrados, com idade média inicial de 75 dias, sendo que seis foram confinados individualmente, consumindo dieta a base de silagem de milho e concentrado na proporção de 40:60 (com base na MS), e o restante, em pastagem de milheto (Pennisetum americanum) recebendo suplementação concentrada ao nível de 1,0% do peso vivo. As avaliações foram realizadas nos meses de novembro a fevereiro, das 8h às 18h. Bezerros confinados permanecem mais tempo (p < 0,05) em ócio, tanto na posição deitado, quanto em pé, enquanto que os animais a pasto permaneceram mais tempo em atividade de alimentação e ruminação. Animais confinados realizaram maior número de refeições diárias, porém de menor duração cada. Em ambos sistemas de criação, a atividade de ruminação é realizada preferencialmente na posição deitada, no entanto, o tempo de ruminação em pé é cerca de 1,4 vezes maior para os mantidos em pastagem. Animais mantidos em pastagem apresentam menor eficiência de ingestão de MS, maior número de bolos ruminados, sendo estes, ruminados em menor tempo e com menor número de mastigadas meríciclas.Palavras-chave: eficiência ingestiva, ócio, ruminação, vitelos.

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Comportamento ingestivo diurno de novilhos Nelore recebendo níveis crescentes de suplementação em pastejo de capim-braquiária

Cited by 28 publications

References 19 publications

Behavior pattern of beef heifers supplemented with different energy sources on oat and ryegrass pasture

Behavior pattern of beef heifers supplemented with different energy sources on oat and ryegrass pasture

Feeding behavior and responses in grazing lactating cows supplemented with peanut cake

<b>Diurnal ingestive behavior of Holstein calves reared in different systems: feedlot or pasture

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