A5060070243- Animal Nutrition and Physiology
- Ruminant Nutrition and Digestive Physiology
- Insect Utilization and Effects
- Livestock and Poultry Management
- Meat and Animal Product Quality
- Genetic and phenotypic traits in livestock
- Animal and Plant Science Education
- Rabbits: Nutrition, Reproduction, Health
- Agriculture Sustainability and Environmental Impact
- Gut microbiota and health
- Bird parasitology and diseases
- Insect Pest Control Strategies
- Food Allergy and Anaphylaxis Research
- Insect and Arachnid Ecology and Behavior
- Agriculture and Biological Studies
- Bee Products Chemical Analysis
- Organic Food and Agriculture
- Animal Behavior and Welfare Studies
- Wine Industry and Tourism
- Molecular Biology Techniques and Applications
- Rabies epidemiology and control
- Mast cells and histamine
- Entomological Studies and Ecology
- Soil and Unsaturated Flow
- Soil and Water Nutrient Dynamics
ETH Zurich
2013-2023
National Academy of Sciences India
2022
Abstract Ruminant livestock are important sources of human food and global greenhouse gas emissions. Feed degradation methane formation by ruminants rely on metabolic interactions between rumen microbes affect ruminant productivity. Rumen camelid foregut microbial community composition was determined in 742 samples from 32 animal species 35 countries, to estimate if this influenced diet, host species, or geography. Similar bacteria archaea dominated nearly all samples, while protozoal...
Currently, there is an intensive ethical discussion about the practice of culling day-old layer cockerels. One solution to avoid this could be using dual-purpose types, where males are fattened for meat and females used egg production. The aim present study was compare fattening performance, carcass conformation, composition as well quality Lohmann Dual, a novel type, 2 traditional types (Belgian Malines Schweizerhuhn) with broiler 1 type (Lohmann Brown Plus). Broilers included conventional...
Currently, there is a great interest in finding alternative protein and energy sources to replace soybean-based feeds poultry diets. The main objective of the present study was completely soybean layer diets with defatted meal fat from black soldier fly larvae without adverse effects. For this purpose, 5 × 10 Lohmann Brown Classic hens were fed either diet or based on 2 producers (1 commercial, 1 small-scale) operating different rearing substrates, temperatures, processing methods (10...
Chick culling is an efficient and cost-effective method in modern poultry farming, but it raises ethical concerns. Dual-purpose (DP), which males are fattened females used for egg production, currently the most realistic alternative to culling, as ovo sexing not yet viable practical application. Consumers' acceptance of DP products their willingness pay (WTP) them have been studied yet, we expect that both aspects closely related WTP from systems claiming beyond-conventional animal welfare,...
To avoid chick culling, meat production can be carried out with either dual-purpose hybrids, where both genders are used, or layer males. However, comparative in-depth studies lacking. The growth and slaughter performance the quality of 2 commercial hybrids (Lohmann Dual, LD; Novogen ND) a hybrid Brown, LB) were compared slow-growing broilers (Hubbard S757, HU), as used for organic production. periods tested 67, 84, 126 D (the LB only). A total 1,350 birds per kept in 5 compartments 20 m2....
1. Due to the increasing global demand for more sustainably produced animal protein, there is an intensive search feeds replace soybeans. Black soldier fly larvae (BSFL) appear have great potential replacing soybeans in poultry diets. The main objective of this study was determine if nutritional value BSFL superior when feeding organic broilers, since smaller amounts could soybean content feed, thus saving even resources.2. Eighty Hubbard S757, a slow growing broiler type, were fattened 63...
Abstract Implementing insects, such as the black soldier fly larvae (BSFL), animal feed commonly includes previous removal of substantial amounts fat. This fat may represent an yet underutilized energy source for livestock. However, transfer lauric and myristic acid, prevalent in BSFL undesired human nutrition, into animal‐source foods like eggs limit its implementation. To quantify this, a laying hen experiment was performed comprising five different diets (10 hens/diet). These were control...
SUMMARY On steep slopes, grazing is associated with elevated physical activity. This assumed to influence muscle metabolism, carcass and meat quality in beef cattle. However, there a lack of experiments which allow distinguishing between activity other factors influence. In the present experiment, setup was applied excluded as best possible. Two groups 12 Angus-sired suckling calves were each kept on high altitude pastures either (whole area about 40% inclination; S-calves) or flat areas (0%...
1. Although fattening dual-purpose types or male layer hybrid chickens appears more ethical than the common practice of culling day-old chicks, lower feed efficiency these birds raises concerns. Replacing ingredients that compete with food production by those value for human nutrition would be beneficial.2. Lohmann Dual (LD), a modern type, Brown (LB), hybrid, and Hubbard JA 957 (HU), slow-growing broiler were fattened nine weeks on two diets (control -20% crude protein; n = 6 × 12 birds)....
Replacing soybeans with insects in egg and poultry meat production could improve environmental sustainability. Black soldier fly larvae (BSFL) have a favorable nutrient composition can be reared on low-grade waste, but this is associated the risk of feed food contamination. The aim study was to assess transfer selected contaminants from larval substrates poultry-derived food. Two different control were used. Substrate CCH (produced Switzerland) based side streams approved for insect rearing...
Economical and ecological issues as well consumer demand for sustainably produced agricultural food rise the trends to fatten beef cattle on pasture during grazing season. However, particularly mountainous regions, implications of turning remain unclear concerning animal performance product quality. Therefore, present study was conducted compare short grass with a semi-intensive indoor fattening system in Alps. Charolais × Simmental heifers about 300 kg live weight were either fattened...
Effects of the alpine origin forage and finishing on carcass beef quality were quantified by modelling different livestock system alternatives. Thirty-five Limousin heifers, initially weighing 383 ± 45 kg, fed fresh grass at 400 or 2000 m above sea level, a 1:1 mixture lowland hay m. After 9 weeks, six heaviest oldest animals per group slaughtered. The remaining finished for 8 weeks silage-concentrate diet in lowlands to similar age body weight as first slaughtered group. Carcass meat (M....
To increase the sustainability of egg production, alternatives to soybean in poultry nutrition are intensively searched for. Black soldier fly larvae (BSFL) could have a great potential, but comparative protein value is not well known. The main objective this study was facilitate comparison by using experimental diets clearly limited calculated supply sulphurous amino acids and lysine. Fifty laying hens (Lohmann Brown Classic), aged 40 weeks, were fed one five for 7 weeks (n=10). Two based...
Abstract Systems based on dual-purpose poultry present an alternative for avoiding the culling of male layer chicks. However, controlled comparisons production characteristics are lacking. A modern type (Lohmann Dual; LD) and two traditional types (Schweizerhuhn Belgian Malines) were compared to a standard Brown Plus; LB) from start lay until week 33 lay. In 3- 4-week periods, resilience hens nutritional challenges was investigated with split-plot crossover design. At first supplementation...
Tenderness, flavour and colour are the most important quality traits of beef that influenced by breed age. Suckler calves (SC) produce very tender, high-quality meat. Extensively growing, small-framed breeds known for beef, but information about particularly small Dexter cattle (D) is yet unavailable. Eight D seven Charolais-crossbreed SC were kept 11 weeks on alpine pastures to be able compare their meat quality. The with dams. animals two slaughtered at different ages (D: 15 months SC: 7...
Compared with weaned calves, nursed calves benefit from access to milk as nutrient-dense feed and mentoring by their dams. Both may be decisive for growth under difficult conditions such grazing on alpine pastures, where experience could play an essential role. These factors were investigated separately comparing at 3 months of age or without a mentor cow (n = 8 calves).Weaned cows spent less time lying walked more than calves. Irrespective whether they had not, the grew slower (357, 428...
In common layer hybrid nutrition, feedstuffs potentially human edible and soybean-based feeds cover most of the diet. The use alternative energy protein sources is limited due to insufficient nutrient density. We investigated whether less demanding dual-purpose poultry would better tolerate a diet composed food industry by-products grain legumes. Hen types were Lohmann Brown Plus (LB, hybrid; n = 10), Dual (LD, Belgian Malines (BM) Schweizerhuhn (CH) (both traditional breeds; 9). Hens in...
Abstract BACKGROUND Water kefir is a beverage with potential benefits for weaned piglets, including increasing feed intake and being source of probiotics organic acids. However, experimental confirmation this lacking. The aim pilot experiment was to develop method producing delivering water piglets at farm scale, assess its palatability identify side effects in varying weight. RESULTS described here applicable practice, as it could produce >50 L per day little investment time. lactic acid...