Tomato cultivation and industrial processing produce a considerable amount of tomato pomace, peels, and seeds, which are difficult to handle. These by-products contain a variety of minerals and bioactive substances, and may thus be further valorised, generating additional revenue for processing...

The paper presents the results of a regional analysis of the development of animal husbandry in the Siberian Federal District (SFD) in the post-Soviet period. The number of farm animals in Siberia has not fully recovered after the crisis of the 1990s, except for some of its species in the national...

The objective of the current experiment was to investigate the effects of dietary organic or inorganic iron (Fe) concentrations on productive performance, egg quality, blood measurements, and tissue Fe concentrations in aged laying hens. A total of three hundred fifty 60-week-old Hy-Line Brown...

Laying hens develop spontaneous ovarian cancer similar to humans. Reports of natural or non-viral occurring neoplasms among avian species is sparse. In a flock of 30 layers mortality rate was 13.3% with associated drop in egg production. An aged dead adult native hen was referred for necropsy....

Prolonging the laying cycle of hens is an effective way to improve the utilization rate of resources, which can bring huge economic and environmental benefits, and it is of great significance to the development of laying hens industry. Nowadays, the main problem of prolonging the laying cycle is...

This study was conducted to determine the effect of ursolic acid (UA) at different ratios (0, 0.5, 1 and 1.5%) supplementation into high-energy laying hen diet on performance, egg quality parameters, serum lipid profile, some liver enzymes and liver fat ratio.A total of 120 Lohman LSL laying hens,...

Feed industrialists have always been in search of alternative, highly nutritive and low-cost feed ingredients. Being energy enriched entity, crude glycerine, a co-product of biodiesel industry, has become a focus point for feed formulators. Day by day increasing trend of using this peculiar...

As a lipophilic tetraterpene compound, carotenoids have many biological functions, such as enhancing immune function, antioxidation, anti-inflammatory, maintaining visual function and so on. In addition, carotenoids are widely used in food and feed additives, and are one of the essential nutrients...

Egg production is the most important commercial attribute of layer hens since it has a direct impact on the efficiency of the poultry industry. This research aimed to study the age at first egg (AFE), egg number (EN), egg quality, and some plasma hormones within the period from the start of laying...

A study was performed to investigate the effect of dietary protein level and addition of yeast or exogenous enzymes on growth performance and carcass characteristics of Japanese quail. A factorial completely randomized design (3×3), three dietary protein levels (24, 21.6 and 19.2%) without or with...