Desempenho, comportamento ingestivo e características de carcaça de cordeiros confinados submetidos a diferentes frequências de alimentação

Abstract

RESUMOwere used in the experiment. The animals were confined for 56 days in collective pens in a slotted floor sheep barn. The animals were randomly distributed, according to the feeding frequency: once, twice and three times/day. The diet (16.7% of CP and 70.3% TDN) was the same for all groups. The average daily gain, ration consumption, feed conversion, ingestive behavior and carcass characteristics were not affected by feeding frequency. Except for leg width, the other body measurements performed on the carcass were not influenced by feeding frequency. Among non-carcass live weight components, only yield of full intestine and digestive tract content were affected, because they were smaller for animals that received one feeding daily. The increase on feeding frequencies when diets containing 16.7% CP and 70.3% TDN were offered does not affect performance, the ingestive behavior and characteristics of carcass of confined lambs. Therefore, only one feeding per day can be used.

Fontes de lipídios e classe sexual no confinamento de ovinos

“…Durante o confinamento, com duração média de 87 dias, o alimento foi fornecido uma vez ao dia no período da manhã, após a retirada e pesagem das sobras como recomendado por Ribeiro et al (2011) Após insensibilização por eletronarcose, os animais foram suspensos de cabeça para baixo, e abatidos com sangria pela secção das veias jugulares e artérias carótidas. Foram quantificados os principais componentes não-carcaça: sangue, pele, trato gastrintestinal cheio e vazio, fígado, coração, rins, cabeça e extremidades dos membros, depósitos adiposos (gorduras perirrenal, omental, mesentérica e pélvica) e foram estimadas suas porcentagens em relação ao peso do corpo vazio.…”

Comportamento ingestivo de novilhos terminados em confinamento submetidos a padrões de fornecimento de energia

“…The time spent in rumination is influenced by the nature of the diet and is probably proportional to the cell wall content of the volumes. Thus, the greater the participation of volumes in the diet, the longer the time spent with rumination (VAN SOEST, 1994). This may explain the longer rumination time demonstrated in the fourth evaluation period of treatment CT (volume:concentrate ratio 60:40) compared to IT10 (volume:concentrate ratio 50:50), not different from IT5 (volume:concentrate ratio 55:45), in which there is the highest proportion of silage compared to the other treatments.…”

“…Therefore, adequate feed management is fundamental to the success of animal production, which seeks to adjust nutritional intake to animal requirements (RIBEIRO et al, 2011). Consequantly, the study of different feeding strategies, through the manipulation of the volume: concentrate ratio along animal finishing becomes important.…”

Distiller’s dried grain with solubles (Zea mays L) in the diet of sheep reared in the tropical region of Brazil: ingestive behavior and physiological parameters

“…Having the choice, animals usually prefer to continue eating foods that are they are accustomed to (MILLEN et al, 2013;RIBEIRO et al, 2011).…”