نتایج جستجو برای: liveweight gain
تعداد نتایج: 166680 فیلتر نتایج به سال:
Tegel Foods is New Zealand’s leading producer and supplier of poultry products, providing an extensive range of quality poultry products to New Zealanders for over thirty years. Tegel is a fully-integrated poultry producer involved in breeding, hatching, feeding, growing, processing and marketing of chicken and turkey in New Zealand. The problem presented by Tegel was specifically to model the ...
Conservation agriculture (CONS A) is a sustainable system based on crop rotation with no tillage. It has various environmental advantages compared to conventional (CONV A): decreased water evaporation, erosion, and CO 2 emissions. In this first study of its kind, we aim evaluate the impact type sheep gastrointestinal parasites. Two lamb groups aged between 5 10 months were randomly included gra...
The solubility of carbohydrates or glycaemic index (GI) determines the kinetics of glucose processing and tissue accumulation and is important in maintaining euglycaemia. We are interested in factors defining lactational potential of a Quackenbush–Swiss mouse strain, inbred and selected for fecundity for 50 generations. Thus the impact of energy availability on changes in growth of suckling pup...
The use of an isolation box test (IBT) to characterize personality traits has been used in non-bovine species with success. We aimed develop IBT for dairy calves and determine if the behavioral responses were associated found from traditional tests (novel person, novel object, a startle tests) average daily gain (ADG; Kg/d) through weaning. Calf movement while was measured via accelerometers at...
THREE experiments were conducted with broiler chicks to determine the minimum crude protein levels in diets of starters and finishers reared a tropical environment. The first two trials covered both starter finisher periods 12 weeks while third experiment only finishing period. calculated dietary used trial 14,16 18, 20, 22 24%; second trial, 22, 24 26% 14, 16, 18 20% on air dry basis. Results ...
Anthelmintic resistance is recognised as a major problem affecting small ruminant production worldwide and now threatens the sustainability of many of these systems. One method that has been proposed to prolong the efficacy of our current anthelmintics is the maintenance of a parasite population in refugia (unexposed to a drug) which will maintain the genes for susceptibility within the parasit...
The objective was to study the influence of livestock production system, extensive vs. intensive, on growth performance of lambs of Churra Tensina breed. In the extensive system, 18 lambs were reared with their ewes on pasture from 7 days old to slaughter, with no supplementation feed. The intensive system, 18 lambs were kept indoor with free access to concentrate, while their ewes were also in...
The aim of this study was to examine the effects barley-vetch hay and silage on liveweight change in pregnant sheep birthweight lambs determine optimal form roughage usage feeding. Forty-eight (Kıvırcık x Akkaraman (G1) were blocked according age randomly distributed three groups: (H, n = 16), barleyvetch (S, control group (C, 16). H fed ad libitum limited concentrate, S C barleygrass straw + a...
Life Cycle Assessment (LCA) of livestock production systems is often based on inventory data for farms typical of a study region. As information on individual animals is often unavailable, livestock data may already be aggregated at the time of inventory analysis, both across individual animals and across seasons. Even though various computational tools exist to consider the effect of genetic a...
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