نتایج جستجو برای: laying quail
تعداد نتایج: 17765 فیلتر نتایج به سال:
introduction breeding quail and quail egg industrial production because of the high nutritional value of these products has been developing these years. considering the high demand and economical production, further development in the future is predicted. in order to design and effective utilization of the equipment for transportation, separation, packaging and storage, the physical and mechani...
In the present study, 256 7-wk-old Japanese quail were randomly distributed into four experimental groups (64 birds per group) and given rations containing 0 (controls), 25, 50, or 100 (g aflatoxin B, (AFB1)/kg feed for 168 d. Each treatment consisted of four replicates of 16 quail. Egg production and individual egg weight were checked daily. Feed consumption and feed use were determined weekly...
A paternal half-sib design was implemented to identify QTL on chromosome 2 affecting growth traits in Japanese quail. Using a reciprocal cross between two strains, white (laying) and wild (broiler) of Japanese quail, 34 birds were obtained in F1 generation and 422 offspring related to 9 paternal half-sib families in 5 consecutive hatches were generated. Progeny from 9 paternal half-sib fam...
The objective of this study was to determine the impact different ambient temperatures on egg production and hatching parameters in Japanese quail. Sixteen weeks old male female quail were assigned 10 cages as 1 5 females. Quails housed a poultry yard belonging Faculty Agriculture. reared under 16 hours’ light 8 dark photoperiod. During study, water food freely available ad-libitum. Regularly e...
In Côte d’Ivoire, the quail breeding is confronted with lack of food specific to species. Thus, in south-east this country, an experimental study was conducted at ISMOREL farm sub-prefecture Adiaké. This study, which aims improve productivity day-to-day farms, focused on grain size feed. From grower (GD) and layer (LD) diets, 5 diets have been manufactured. There are: LD a particle mm, 3 GD mm ...
Studies performed in vitro suggest that a novel 12 amino acid RF amide peptide, isolated from the quail hypothalamus, is a gonadotrophin inhibitory hormone (GnIH). The aim of the present study was to investigate this hypothesis in the domestic chicken. Injections of GnIH into nest-deprived incubating hens failed to depress the concentration of plasma luteinizing hormone (LH). Addition of GnIH t...
Chronic stress is a long-lasting negative emotional state that induces negative consequences on animals' psycho-physiological state. This study aimed at assessing whether unpredictable and repeated negative stimuli (URNS) influence feeding behaviour in quail. Sixty-four quail were exposed to URNS from day 17 to 40, while 64 quail were undisturbed. Two lines divergently selected on their inheren...
Two hundred and forty Japanese quail aged 125 days were randomly allocated to five treatment groups based on laying (%) quail’s weight (90.71 ± 1.8% egg/day × 100 178.05 9.38 g, respectively), each of which included six replicates eight quails. The diets formulated corn, soybean meal, industrial amino acids. An optimal diet achieves 100% acids required by the requirements, except for threonine....
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