Comportamento ingestivo de caprinos Moxotó e Canindé submetidos à alimentação à vontade e restrita

Abstract

RESUMO. O trabalho teve por objetivo avaliar o comportamento ingestivo de caprinos das raças Moxotó e Canindé, submetidos a dois níveis de alimentação. Foram utilizados 24 cabritos inteiros (12 Moxotó e 12 Canindé) com idade média de quatro meses e peso vivo inicial médio de 15 kg, alojados em baias individuais, distribuídos no delineamento inteiramente casualizado, em um arranjo fatorial 2x2 (duas raças e dois níveis de alimentação) e seis repetições. Os níveis de alimentação foram: à vontade (T1) e 30% de restrição em relação ao animal que recebia alimentação à vontade (T2). As observações comportamentais foram realizadas em intervalos de cinco minutos durante 24h. Os animais das raças Moxotó e Canindé não apresentaram diferença significativa (P>0,05) para as variáveis comportamentais observadas. Alimentação à vontade proporcionou maior atividade de alimentação e ruminação e menor tempo em ócio. As atividades de micção, defecação e procura por água foram influenciadas pela hora do dia.

Water consumption when exposed to sun and shade for native goats in the semiarid of the State of Paraiba, Brazil

“…It was also noted that increased demand for water was made by Moxotó, followed by the Azul goats, and the animals which visited the least the water fountains were the ones from the Graúna breed. This consumption was similar to that found by BARRETO et al (2011) when studying the feeding behavior of native Moxotó and Canindé goats with different diets, but differs from quoted by RIBEIRO et al (2006), who analyzed the feeding behavior of goats fed ad libitum and under restriction, mentioned that the demand for water was higher (1.94 times), for the animals fed ad libitum, and inferior to the present research. ARAÚJO et al (2010) reported that among the factors that affect water consumption are: heat, which promotes more effective in increasing water consumption; dry matter intake , which has a direct relation with the water consumption; mineral supplementation, which increases the demand especially in pregnant and lactating female; and confinement considering that the stabled animals tend to decrease consumption in relation to those in pasture.…”

“…According to RIBEIRO et al (2006), this also occurs due to the habit of these animals to have their eating and ruminating activities during the day, stimulating the demand for water, and at night, due to the processes of digestion, a greater elimination of the food that was not absorbed and the metabolites occurs, most via feces and urine. POMPEU et al (2009), by analyzing the behavior of sheep, found that they had higher water consumption in the hottest periods of the day.…”

“…According to RIBEIRO et al (2006) and RIBEIRO et al (2009), the feeding habits of goats is associated with their behavior, which is connected to a set of factors involving the nature and form of food, and organoleptic qualities and repulsive or toxic antinutritional substances, the animal itself, the climate that it is submitted, and the water consumption linked to its quantity and quality. Studies with preference, consumption and productivity of animals related to water are still scarce in Brazil and abroad (ARAÚJO et al, 2010).…”

Growth performance of native goats fed diets containing different levels of energy

“…Average daily intake was similar to that recommended by the NRC (2007) for native animals in development with 15 kg BW, with an intake of 0.54 kg DM and 35.9 g/kg BW, whilst for animals with BW of 20 kg, daily intake should be 0.62 and 31 g/kg BW. Ribeiro et al (2006) studied similar breeds of goats of similar age and weight, and reported a daily intake of 0.70 kg DM/day, which corresponds to 35.6 g/kg BW for animals fed ad libitum, findings which were similar to those of this study.…”

“…According to research of Oliveira et al (2004) and Ribeiro et al (2004) research, goats, along with other domestic animals, were brought from the Iberian Peninsula to Brazil during the colonial period. After hundreds of years of natural selection occurring over several generations, the modern day ancestors of those animals acquired the ability to survive and flourish in the semi-arid climate.…”