Investigating variability of craft microbreweries spent grains for classification and incorporation into precision diet formulation through multivariate analyses.

Alternative feedstuffs offer a cost-effective and sustainable option for livestock nutrition, playing a crucial role in niche market development. Brewer's spent grains (BSG), a byproduct of the expanding craft microbrewery industry, are a particularly promising feed source due to their availability and nutrient content. However, variability in BSG composition poses challenges for their effective incorporation into precision diet formulations.

Effects of sunflower cake in lamb diets on meat quality and its fatty acid profile.

This study aimed to evaluate the effects of sunflower cake (SFC) levels (0, 7, 14, 21, and 28% dry matter) in the diet for feedlot lambs on meat quality and its fatty acid profile. Forty crossbreed non castrated hair lambs were fed with experimental diets through 70 days when they were slaughtered and a Longissimus lumborum section were evaluated for physicochemical quality and fatty acid profile. There were no effects of SFC levels (P > 0.

Soybean molasses can be used as a substitute for corn in grazing beef cattle supplements during the rainy season.

Soybean molasses (SBMO) is a byproduct derived from the production of soy protein concentrate, obtained through solubilization in water and alcohol. The utilization of SBMO as an animal feed ingredient shows promising potential, primarily due to its low cost and as a potential energy concentrate. This study aimed to assess the intake, digestibility, ruminal parameters (pH and ruminal ammonia - NH), nitrogen retention (NR) and microbial protein synthesis in grazing beef cattle supplemented with SBMO as a substitute for corn during the rainy season.

Different fat sources in supplements for beef cattle at pasture.

We investigated the consequences of fat supplementation (free oil and rumen-protected oil) on the nutrient intake and digestion of beef cattle at pasture. Five rumen-cannulated Nelore bulls, with a median body weight (BW) of 467.8 ± 32.

Effects of protein-energetic supplementation frequency on growth performance and nutritional characteristics of grazing beef cattle.

Two experiments were conducted to evaluate reduced supplementation frequencies for grazing beef cattle in rainy season. In experiment 1, evaluating the nutritional parameters, four rumen-cannulated Nellore bulls (BW = 410 kg) were used. In experiment 2, evaluating animal performance, 48 Nellore bulls (BW = 358 kg) were used.

Effect of calves' supplementation on performance, nutritional and behavioral characteristics of their dams.

The effects of supplementation of beef calves on weight gain, intake and digestibility of pasture, milk production and composition of their dams, and behavior of the pair cow-calf were assessed. Fifty-five beef cows with an initial average body weight of 449 ± 8 kg and their respective offspring, with an initial average body weight of 138 + 3 kg and aged between 90 and 150 days, were used. Animals were submitted to an experimental period of 112 days.