Abstract
The effect of a diet based on former food products (FFP) as alternative feed ingredients on in vitro and in vivo digestibility of dry matter (DM), pig growth performance, and selected plasma biochemical variables were evaluated. After an adaptation period (7 d), 12 post-weaning piglets (28 days-old) were housed for 16 d in individual pens and assigned to two experimental groups: Control (n = 6), received a standard diet and FFP (n = 6), received a diet in which conventional cereals (wheat, barley, and corn), plasma powder and whey powder, were partially replaced by 30% FFP. During the experiment, stool and blood samples were also collected for DM in vivo digestibility and for plasma biochemical measurements, respectively. The results revealed that both in vitro and in vivo digestibility values were higher (p<.05) for FFP diets compared to the control diets. At the end of the experiment, no differences in BW were observed between groups (p=.61). ADG and ADFI were not affected by dietary treatment. Conversely, piglets on the FFP diet showed a lower FCR (p<.01). Finally, dietary treatment also affected plasma glucose and urea, which in pigs fed FFPs increased and decreased, respectively. Taken together, these results suggest that the use of FFPs up to a level of 30% in post-weaning diets has no detrimental effects on pig growth performance, although more studies are needed to confirm these results.HighlightsCFormer foodstuffs products (FFPs) are valuable alternative feed ingredients.FFPs can partially replace cereal grains in post-weaning piglet’s diets without affecting growth performance.
Highlights
The livestock sector is highly dynamic worldwide
Dietary treatment affected plasma glucose and urea, which in pigs fed former food products (FFP) increased and decreased, respectively. These results suggest that the use of FFPs up to a level of 30% in post-weaning diets has no detrimental effects on pig growth performance, more studies are needed to confirm these results
In order to increase the knowledge, and the use of FFP in pig diets, this study evaluated for the first time the effects of a diet based on 30% FFP in pig diets, by assessing the impacts on in vitro and dry matter (DM) apparent total tract digestibility (ATTD), growth performance and haematological parameters in post-weaning piglets
Summary
Human population growth, increasing urbanisation and rising incomes are predicted to double the demand for, and production of livestock and livestock products in developing countries over the decades. In developed countries, many production systems have been increasing their efficiency and environmental sustainability (Pinotti et al 2016). Sustainability includes the rational use of nonrenewable and renewable resources (i.e. energy and raw materials) to combat climate changes, a lower load on the environment due to manure production and contaminant excretion by animals, and enhanced animal welfare and profitability (Renaudeau et al 2014; Pinotti et al 2016). Appropriate feeding and nutrition have become increasingly important as livestock systems strive to become more efficient (Tretola, Ottoboni, et al 2017)
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