Hatching Eggs & Other 64
نویسندگان
چکیده
s of papers 17 a significant improvement in growth, feed efficiency, or mortality under conditions of this trial.
منابع مشابه
Quality of Eggs and Hatching Traits in Two Slow-Growing Dual-Purpose Chicken Lines Reared Conventionally or on Pasture
The quality of eggs and the hatching traits of two slow-growing lines – La Belle (LB) and Bresse Gauloise (BB) reared under conventional or alternative system with pasture access were compared. The birds of both lines in the study were at the age of 27-37 weeks. Two-way ANOVA was used to assess the effect of the rearing system as well as the line on the quality characteristics of the eggs and h...
متن کاملEffects of antifungal activity of Daenensis thyme (Thymus daenensis)and Mentha (Mentha longifolia)essential oils on rainbow trout(Oncorhynchus mykiss) eggs hatchability
In this study, rainbow trout (Oncorhynchus mykiss) eggs were treated with effective doses of Daenensis thyme, Thymus daenensis (20, 10 and 5 mgL-1) and Mentha, Mentha longifolia (10, 5 and 2.5 mgL-1), during incubation period (20 days) until hatching for 30 minutes per every other day as constant flow bath treatment method. The mortality level in normal control (without any treatment) was sign...
متن کاملVariation in the hatching response of Ochlerotatus albifasciatus egg batches (Diptera: Culicidae) in temperate Argentina.
Egg hatching of winter-collected Ochlerotatus albifasciatus was studied for six months. Batches of eggs were divided into two groups, one of them was stored in the laboratory at 23 degrees C and 12:12 photoperiod, and the other in the field under dead leaves. Every month, from July to December, eggs from the two groups were flooded under both laboratory and field conditions. Unhatched eggs were...
متن کاملEffects of different hatcher temperatures on hatching traits of broiler embryos during the last five days of incubation
This study deals with the effects of different hatcher temperatures on hatching traits in modern commercial broiler eggs during the last five days of incubation. The hatching eggs were obtained from a 52wk old (Ross 308) flock. All eggs were distributed randomly into one incubator and incubated for 17 d using uniform conditions (37.6 ± 0.5 °C and 58% relative humidity). At the start of 18 days ...
متن کاملDifferences in Hatching of Heterodera glycines Egg-mass and Encysted Eggs in vitro.
Hatching studies with Heterodera glycines typically have been conducted with a mixture of egg-mass and encysted eggs. Laboratory research was conducted to compare hatching of H. glycines eggs from external egg masses with that of eggs extracted from within females and cysts (encysted eggs). Egg-mass eggs were collected by soaking infected soybean roots in 0.5% sodium hypochlorite, and encysted ...
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