It was confirmed in metabolic experiments with 4 individuals of roe deer (2 males and 2 females with the live weight of 20.8 and 17.9 kg, respectively) that due to the animals’ selective choice of a part of feeds there was no significant difference in the intake of lucerne hay of different quality and high-quality meadow hay (515.86 ± 66.97 and 597.82 ± 94.87 g, respectively). However, differen...

The aim of this research is to compare indigestible internal markers acid insoluble ash (AIA) and acid detergent lignin (ADL) and total collection of faeces (TCF) for apparent digestibility estimation in Caspian horse. Analyses were carried out on wheat straw, alfalfa, barley and maize, for dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), neutral detergent fiber (ND...

The effect of feeding tamarind (Tamarindus indica) seed husk (TSH) as a source of tannin on dry matter intake (DMI), digestibility, N balance, milk yield and milk composition was studied in crossbred dairy cows in mid-lactation. The study included lactation and metabolism trials. The lactation trial was conducted using nine multiparous cows in mid-lactation in a switchback design. The cows were...

This experiment investigated the effect of feeding different levels of sesame oil cake on the intake and digestibility of DM, CP, crude fiber, and crude fat in Awassi fattening lambs. Sesame oil cake was incorporated into lamhs’ rafions at levels of 10 and 20% to replace similar percentages of barley and soybean. The results showed that the high level of sesame oil cake inclusion decreased DM a...

Poultry feathers, consisting largely of keratin, are a low-value product of the poultry industry. The safety and digestibility of a dietary protein produced from keratin (KER) was compared to a cysteine-supplemented casein-based diet in a growing rat model for four weeks. KER proved to be an effective substitute for casein at 50% of the total dietary protein, with no changes in the rats' food i...

The potential use of food residues for pet could significantly contribute to waste reduction. In the present study, effects inclusion dried (DFR) (0, 5, 10 and 15%) in a complete diet were evaluated seven healthy adult cats. At end each three-week feeding period, feces collected. analysis fecal microbiota by 16S rDNA sequencing demonstrated marked increase bacterial alpha-diversity with increas...

Our objective was to perform a series of meta-analyses evaluate the effects diets supplemented with saturated free fatty acid (FA) supplements (SFAA) compared nonfat control (CON) on nutrient digestibility and production responses lactating dairy cows determine whether experimental design affects SFFA. We divided SFFA into C16:0-enriched (PALM, FA ≥80% C16:0) C16:0+C18:0-enriched (MIX, C16:0+C1...

The objectives of this study were to determine how feeding diets that differed in dietary neutral detergent fiber (NDF) concentration and in vitro NDF digestibility affects dry matter (DM) intake, ruminal fermentation, and milk production in early lactation dairy cows. Twelve rumen-cannulated, multiparous Holstein cows averaging 38 +/- 15 d (+/-standard deviation) in milk, and producing 40 +/- ...

Grape pomace provides a rich source of polyphenols that have the capacity to act as powerful antioxidants. An experiment was conducted to study the effect of inclusion of grape pomace concentrate (GPC) at levels of 15, 30, and 60 g/kg and alpha-tocopheryl acetate (200 mg/kg) in broiler chicks (21 to 42 d of age) on performance; digestive organ sizes; protein; fat; hydrolyzable polyphenol and co...

Eighty, 12-day-old, male broiler chicks, were fed one of four diets to determine the effects of feeding grains varying in phytate phosphorus (P) and intrinsic phytase activity on ileal and excreta P digestibility and composition. The diets contained approximately 970.7 g grain kg−1 (maize, high fat–low lignin oat, normal barley or low-phytate barley) with the cereal supplying the sole source of...