Introducción En becerras, el destete es un momento crítico con impacto económico directo en la vida productiva del animal. Soberon et al. (2012) demostraron que por cada kg de crecimiento diario antes del destete la producción lechera corregida a 305 días de lactancia podía incrementarse entre 700 y 1000 kg…
We have shown that offering a variety of flavored feeds to sheep has the potential to change their feeding behavior and thereby enhance intake relative to a monotonous diet. The aim of this study was to assess whether the expected differences in feeding behavior displayed by sheep exposed to a…
Fostering newborn calves to consume solid feed before weaning can contribute to ensure proper rumen development, growth, and health during this critical phase. We hypothesized that conferring the starter feed sensorial properties (smell and taste) similar to the milk replacer (MR) may allow stimulating intake of solid feed before weaning.…
Sodium butyrate (SB) is often used as an additive for milk replacers (MR) to improve calf performance. Tributyrin (TRB) is a triglyceride containing equivalent amount of butyrate than SB but in a more stable form. The aim of this study was to evaluate the effects of supplementing a MR with…
Butyrate in the form of sodium butyrate (SB) is often used as an additive for milk replacers (MR) to improve calf and piglet performance. Tributyrin (TRB) is a triglyceride containing equivalent amounts of butyrate than SB but in a more stable form. Thirty-six Holstein calves (45.7±5.9 kg of BW and…
Thirty-two crossbred lambs (BW = 31.2 ± 4.7 kg; 16 females, 16 males) housed in individual pens were used to investigate the relationship between nutrient supply and taste preferences in ruminants. Experiment 1 determined whether an imbalanced CP supply would alter preferences for feeds containing flavors designed to elicit either…
A series of preference assays were conducted, using 2-month old 135 Holstein calves (65±0.3d of age), to develop an experimental method aimed at evaluating oro-sensory preferences in weaned calves. First, 35 calves (65±0.7d of age) were used to describe the typical eating pattern to determine the optimum moment to conduct…
Opioid peptides may participate in the control of feed intake through mechanisms involving pleasure reward linked to consumption of palatable feed. The objective of this study was to determine whether blocking opioid receptors might void oro-sensorial preferences of calves, and affect circulating glucose, insulin, and anorexigenic hormones in fasted and…
The purpose of this study was to determine oro-sensorial preferences of recently weaned calves for 6 protein ingredients (corn gluten meal, distillers dried grain from wheat, pea meal, rapeseed meal, soybean meal, and sunflower meal) and to assess whether oro-sensorial preferences would remain when ingredients are presented as a part…
This study determined whether early experiences of sheep with the same feed, but presented in multiple or single flavors, would influence intake, the profile of hormones involved in feed intake regulation, and the subsequent acceptability of novel feeds. Thirty-five 2-mo-old lambs were randomly assigned to 5 treatments (7 lambs/treatment). Lambs…
