Results 41 to 50 of about 367,214 (225)

Effects of egg storage duration prior to incubation on performances of Arab Chickens during the first week post-hatch [PDF]

open access: yesBIO Web of Conferences, 2023
This study investigated the effects of egg storage duration prior to incubation on performances of Arab Chickens during the first week posthatch. A total of 100 day-old-chicks were distributed among 20 experimental units, each representing a different ...
Andri Faizal   +6 more
doaj   +1 more source

Experimental comparison between selection for residual feed consumption and feed conversion ratio in Tribolium

open access: yesJournal of Animal Breeding and Genetics, 1998
SummarySelection for residual feed consumption based on genotypic regression (RE) was compared with selection for feed conversion ratio (RA) using two experiments of downward selection for feed efficiency in Tribolium castaneum. The first experiment was designed to decrease feed consumption: weight gain, with residual feed consumption being based on ...
Campo, J. L., Turrado, H.
openaire   +4 more sources

Identification of Rumen Microbial Genes Involved in Pathways Linked to Appetite, Growth, and Feed Conversion Efficiency in Cattle

open access: yesFrontiers in Genetics, 2019
The rumen microbiome is essential for the biological processes involved in the conversion of feed into nutrients that can be utilized by the host animal. In the present research, the influence of the rumen microbiome on feed conversion efficiency, growth
Joana Lima   +9 more
doaj   +1 more source

The effects of plastic slatted floor and a deep- litter system on the growth performance of hybrid Pekin ducks [PDF]

open access: yesArchives Animal Breeding, 2021
This research was conducted to evaluate the effects of plastic slatted floors and a deep-litter system using wood shavings on the growth performance of current commercial hybrid Pekin ducks. A total of 96 Pekin ducks (Star 53) were reared for 42 d. Live
S. A. Eratalar
doaj   +1 more source

Effect of temperature rise on growth performance, feed intake, feed conversion ratio and sex ratio of the Nile Tilapia, Oreochromis niloticus [PDF]

open access: yesEgyptian Journal of Aquatic Biology and Fisheries, 2021
This study was conducted to investigate the effect of increasing water temperature on growth performance, feed intake, feed conversion ratio, and sex ratio of Oreochromis niloticus. Two groups of O. niloticus fries (3 days post-hatching) were reared in an indoor system, at 30°C and 34°C.
openaire   +2 more sources

Overview on the performance of Brazilian broilers (1990 to 2009)

open access: yesBrazilian Journal of Poultry Science, 2012
This article describes the genetic evolution of commercial broilers between 1990 and 2009, considering live performance, in particular, in terms of weight gain and feed conversion ratio.
IS Patricio   +3 more
doaj   +1 more source

Channel Catfish, Ictalurus punctatus, Size and Feed Conversion Ratio

open access: yesJournal of the World Aquaculture Society, 2010
Channel catfish, Ictalurus punctatus, of five size-classes were stocked into 20, 0.04-ha earthen ponds at a rate of 14,826 fish/ha. Mean initial weights for each size-class were 0.232, 0.458, 0.678, 0.911, and 1.10 kg/fish. Four ponds were randomly allotted to each treatment. A commercial 28% protein diet was fed daily to apparent satiation.
Edwin H. Robinson, Menghe H. Li
openaire   +2 more sources

Feeding of by-products completely replaced cereals and pulses in dairy cows and enhanced edible feed conversion ratio [PDF]

open access: yesJournal of Dairy Science, 2015
When fed human-edible feeds, such as grains and pulses, dairy cows are very inefficient in transforming them into animal products. Therefore, strategies to reduce human-edible inputs in dairy cow feeding are needed to improve food efficiency. The aim of this feeding trial was to analyze the effect of the full substitution of a common concentrate ...
Qendrim Zebeli   +3 more
openaire   +2 more sources

Digestible methionine + cysteine: lysine ratios for growing meat-type quails

open access: yesCiência Rural, 2018
: The objective was to estimate the most appropriate digestible methionine + cysteine:lysine ratios for growing meat-type quails (Coturnix coturnix) from 1 to 21 days of age.
Mariana Resende de Castro   +6 more
doaj   +1 more source

Effects of Dietary Caulerpa lentillifera Supplementation On Growth Performance and Survival Rate of Milk Fish, Chanos chanos (Forsskål, 1775)

open access: yesElkawnie: Journal of Islamic Science and Technology, 2022
: The study aimed to investigate the dietary supplementation effect of sea grape, Caulerpa lentillifera, on the growth performance and survival rate of milkfish, Chanos chanos (Forsskål, 1775).
Dedi Fazriansyah Putra   +3 more
doaj   +1 more source

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