scholarly journals The Value of Dried Fish Silage for Pullet and The layer Hen

2021 ◽  
Vol 14 ◽  
pp. 67-76
Author(s):  
A. D. Ologhobo ◽  
A. M. Balogun
Keyword(s):  
Feed Efficiency ◽  
Egg Production ◽  
Egg Size ◽  
Fish Meal ◽  
Metabolizable Energy ◽  
Energy Utilization ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Dried Fish ◽  
Dietary Treatments

Two experiments were conducted with golden Hubbard pullet chicks to investigate the replacement effects of locally prepared fish silage for imported fish meal in pullet and layers' rations. Acidic and neutral fish silage preparations concentrated with either maize or cassava plus groundnut meal and wheat offals, were fed as a substitute for fish meal. Results with pullets showed good feed consumption for all dietary treatments but feed efficiency was decreased (P<0.05) for neutral cassava, acidic maize and acidic cassava fish silage treatments. Pullet mortality was between 0.18 and 4.17%, being significantly (P<0.05) highest in the acidic fish silage diets. Lipid retention, metabolizable energy (ME) and efficiency of energy utilization (ME%) were similar across all treatments except for neutral maize fish silage, in which ME was slightly high and lipid retention low. Egg production and egg size significantly (P<0.05) decreased among groups of birds fed acidic maize acidic cassava and neutral cassava fish silage diets. Similarly, the efficiency of feed conversion to eggs decreased (P<0.05) in all fish silage substituted diets.

RESPONSE OF LAYING HENS TO GRADED LEVELS OF DIETARY NUTRAFOS 3 IN A HUMID TROPICAL ENVIRONMENT

2021 ◽  
Vol 15 ◽  
pp. 185-196
Author(s):  
M. MONSI ◽  
A. O. AMAKIRI
Keyword(s):  
Treatment Effect ◽  
Feed Efficiency ◽  
Egg Production ◽  
Egg Size ◽  
Laying Hens ◽  
Gallus Domesticus ◽  
Feed Consumption ◽  
Tropical Conditions ◽  
Overall Performance ◽  
Haugh Unit

Four groups of 48 laying hens (Gallus domesticus), midway in their laying cycle were fed diets containing graded levels (0.00%, 1.5%, 2.5% and 3.5%) of dietary Nutrafos 3 for 56 days. The completely randomized experimental arrangement was designed to evaluate the responses of the caged layers to the inclusive levels of the additive under humid tropical conditions. The dietary additive produced statistically significant (P< 0.01) improvements in the rate of egg production of the hens. Significant increases (P< 0.01) in feed consumption and improvements in feed efficiency (P < 0.01) were also observed. Haugh unit was significantly (P < 0.05) depressed by dietary Nutrafos 3, especially at the highest level of inclusion. There was no treatment effect on egg size as well as some major anatomical characteristics. The best overall performance was achieved at the 3.5% level of dietary inclusion in contrast to the proprietary recommendation of 2.5%.

Substitution Value Of Maize Offal For Maize In Diets Of Laying Hens

2021 ◽  
Vol 17 ◽  
pp. 56-59
Author(s):  
O. J. Uko ◽  
P. Awoyesuku ◽  
G. M. Babatunde
Keyword(s):  
Weight Gain ◽  
Conversion Efficiency ◽  
Egg Production ◽  
Egg Quality ◽  
Optimal Level ◽  
Quality Parameters ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Egg Weight ◽  
Dietary Treatments

Two hundred and sixteen Golden Hubbard strain of laying eggs, aged 32 weeks, were used to investigate the optimal level of maize offal (MO) that could replace maize with no detrimental effects on the performance of the hens. Graded levels of MO(0, 10, 20, 30, 40, and 50%) replaced equal levels of maize in six dietary treatments (1 to 6 respectively). There were no significant (P>0.05) differences between diets in egg production and weight weight gain of the hens. Egg weight was highly influenced (P<0.01) by the dietary treatments, with 30% MO producing the heaviest eggs. Increasing dietary levels of MO significantly (P<0.01) significantly increased feed consumption. Feed conversion efficiency differed (P>0.05) only at 50% levels of dietary MO. Of the egg quality parameters investigated, albumen, yolk and shell percentages were not affected (P>0.05) by the MO, while the Haugh Units were (P<0.05).

scholarly journals EFFECTS OF POPULATION DENSITY ON ENERGY UTILIZATION, INTESTINAL DISACCHARIDASES, AND ADRENAL FUNCTION IN HENS

1972 ◽  
Vol 52 (1) ◽  
pp. 103-112 ◽  
Author(s):  
K. Y. LEI ◽  
M. P. STEFANOVIC ◽  
S. J. SLINGER
Keyword(s):  
Fatty Acids ◽  
Population Density ◽  
Egg Production ◽  
Starch Content ◽  
Metabolizable Energy ◽  
Energy Utilization ◽  
Feed Consumption ◽  
Bird Density ◽  
Total Fatty Acids ◽  
Adrenal Corticosterone

Two experiments were carried out with laying hens to determine the effect of overcrowding stress on reproductive performance and on certain other parameters that might be expected to be affected and thus be useful indices of this type of stress. The first experiment consisted of eight treatments in a factorial arrangement with four bird densities of one, two, three, or four birds in 30.5 × 45.7-cm (12 × 18″) cages and two levels of dietary energy. The second experiment involved three bird densities of one, three, and five birds in 30.5 × 45.7-cm cages fed a single diet. There were four replicate cages per treatment in both experiments. Feed consumption, weight gain, and egg production were not significantly affected by the population densities employed in experiment 1. In experiment 2, increasing bird density significantly reduced egg production, and hens maintained at five per cage suffered a net loss of body weight. In neither experiment was energy utilization affected by crowding since the dietary metabolizable energy values remained constant. In both experiments mucosal maltase and sucrase activities were significantly increased with increasing bird density when birds were fed diets of relatively normal starch content. Plasma-free fatty acids, total fatty acids, and triglyceride levels were not significantly affected by population density, nor were the oleic–linoleic–arachidonic acid levels expressed as percentages of total fatty acids. It would thus appear that lipid metabolism remained relatively normal in hens subjected to overcrowding stress. The levels of peripheral plasma corticosterone and adrenal corticosterone increased in a linear fashion in both experiments with increasing bird density. It would appear that plasma and adrenal corticosterone levels might be useful indices of overcrowding stress in hens.

scholarly journals EFFECT OF QUALITATIVE FEED RESTRICTION ON PULLET DEVELOPMENT AND SUBSEQUENT EGG PRODUCTION.

2021 ◽  
Vol 18 ◽  
pp. 34-42
Author(s):  
A. SEKONI ◽  
P. C. NJOKU ◽  
J. M. OLOMU ◽  
S. O. OGUNDIPE ◽  
S. A. OFFIONG
Keyword(s):  
Egg Production ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
Protein Levels ◽  
Reduced Body ◽  
Dietary Crude Protein ◽  
Body Weights ◽  
Isocaloric Diets ◽  
Dietary Treatments ◽  
Effect Of Feeding

The effect of feeding different protein levels  during the rearing and development of egg-type  pullets as well as on eventual egg production was investigated in two experiments. In experiment I, the dietary crude protein (CP) regimens (and old to point of lay notations) in isocaloric diets for the periods 0-8 weeks and 9-20 weeks respectively for treatment 1: 20% and 16% (20:16), treatment 2: 16% and 16% (16:16), treatment 3: 12% and 12% (12:12), treatment 4: 16% and 12% (16:12), treatment 5:20% and 12% (20:12) and for treatment 6 theregimens comprised 20% for 0-8 weeks, 16% for9-16 weeks and 12% for 17-20 weeks (20:16:12) In experiment 2, treatments 1 to 5 for experiments 1 were repeated while three step-up dietary treatments 6, 7 and 8 were evaluated in addition. For the periods 0-8 weeks and 9-20 weeks respectively, the CP regimens for treatment 6 were 12% and 16% (12:20) and for traetment 7, 12% and 20% (12:20) and for treatment 8, 16% and 20% (16:20). From 20 weeks in each experiment, a common layer diet containing 16% CP and 2,449 Kcals metabolizable energy per kg was fed ad libitum to all treatments and all the subsequent egg production was monitored for a further 16 weeks . Both studies indicated that production was reported egg-type chickens fed diets with a drastic protein restriction (12%) in the starting period (0-8 weeks) had significantly reduced body weights at 20 weeks and delayed sexual maturity.  However, when such birds were subsequently (9-20 weeks) offered diets with higher protein content significant compensatory effects on weight gain and feed conversion were indicated. The step-up CP règimens in experiment 2 performed.

scholarly journals INFLUENCE OF DIETARY WILD SUNFLOWER (Tithonia diversifolia Hemsl. A Gray) LEAF MEAL ON LAYERS PERFORMANCE AND EGG QUALITY

2021 ◽  
Vol 23 (1) ◽  
pp. 28-32
Author(s):  
A. A. ODUNSI ◽  
G. O. FARINU ◽  
J. O. AKINOLA
Keyword(s):  
Egg Production ◽  
Egg Quality ◽  
Body Weight Gain ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Wild Sunflower ◽  
Leaf Meal ◽  
Feeding Value ◽  
Dietary Treatments ◽  
Haugh Unit

The performance of layers on various dietary levels of Wild Sunflower leaf meal (SLM) was investigated. Seventy-two Nera Black with commercial layers in their fourth month of lay of were randomised into six dietary treatments comprising a commercial layer mash (CLM) 05, 10, 15 and 20% SLM. Results revealed that egg production was appreciably supported even for layers on 15 and 20% SLM diets. Feed consumption ranged from 96.27 gms in layers fed 20% SLM to 106.86 gm for birds on CLM. Feed conversion efficiency in terms of kg feed South-western Nigeria up to the Middle Belt per dozen eggs was highest for 15% SLM while CLM had the highest cost of feed consumed per dozen eggs. All diets supported a net positive There is scanty report on the feeding value body weight gain on the birds. Haugh unit, yolk index, shell thickness and egg weight were not significantly influenced (P>0.05) by dietary treatments. Yolk colour was significantly (P<0.05) enhanced by SLM (at all levels) over rabbits. These preliminary findings suggest either the control or CLM. There was no mortality throughout the 12 weeks experiment lasted.

scholarly journals Nitrogen-Corrected Apparent Metabolizable Energy Value of Crude Glycerol for Laying Hens / Współczynnik Metaboliczności Energii Surowej Gliceryny Dla Kur Nieśnych

2013 ◽  
Vol 13 (4) ◽  
pp. 829-836 ◽  
Author(s):  
Klaudia Németh ◽  
Eszter Zsédely ◽  
János Schmidt
Keyword(s):  
Egg Production ◽  
Crude Glycerol ◽  
Laying Hens ◽  
Basal Diet ◽  
Metabolizable Energy ◽  
Egg Mass ◽  
Adaptation Period ◽  
Feed Conversion ◽  
Apparent Metabolizable Energy ◽  
Dietary Treatments

Abstract An experiment was conducted with 64 Tetra SL laying hens (placed into four groups) to determine the AMEn value of feed grade crude glycerol (DM 92%; glycerol 86.80%; methanol 0.04%; fat 0.49%; ash 4.67%; GE 15.59 MJ/kg). All groups were given a 100 g basal diet per day (AMEn value 11.46 MJ/kg; protein 16.97%; Ca 3.49%; P (non-phytate) 0.56%; lysine 0.82%; methionine 0.40%; cysteine 0.29%; threonine 0.60%; tryptophan 0.19%), which was supplemented with 5%, 7.5% and 10% glycerol for the three experimental groups. Hens were placed in metabolism cages (4 hens/treatment in four replicates). After a 10-day adaptation period, excreta was collected and weighed individually for 10 days. The AMEn value of crude glycerol (86%) was calculated as 15.30 MJ/kg for laying hens. During the experiment, egg production (90.0-90.8%), egg weight (56.8-58.0 g) and egg mass (51.2-52.7 g) were not affected by dietary treatments. Feed conversion was significantly reduced by a 10% glycerol supplementation. We concluded that crude glycerol’s energy is efficiently used by laying hens, and more efficiently than by broilers. The established 15.30 MJ/kg AMEn value of crude glycerol when fed in the daily ration to laying hens means that they utilized 97.6% of the glycerol’s GE content.

Relation of diurnal temperature and humidity ranges to egg production and feed efficiency of New Hampshire hens

1959 ◽  
Vol 52 (2) ◽  
pp. 217-222 ◽  
Author(s):  
Robert L. Squibb
Keyword(s):  
Body Weight ◽  
New Hampshire ◽  
Feed Efficiency ◽  
Diurnal Temperature Range ◽  
Egg Production ◽  
Egg Size ◽  
Feed Consumption ◽  
Diurnal Temperature ◽  
Diurnal Range ◽  
Tropical Lowlands

The effect of environment on the production and size of eggs, feed efficiency and mortality of New Hampshire hens in individual cages was studied simultaneously in five areas of Guatemala having temperatures covering a range of 0°–45° C. with variable humidities.While birds housed in the tropical lowlands did show visible signs of thermo-stress, there were no significant differences in egg size, production, feed consumption, mortality and body weight between areas or between groups within areas. The inconsistency of these data with other published reports is explained on the basis of the observed extremely wide diurnal range for temperatures and humidities. An attempt is made to present accepted physiological phenomena in the form of a working hypothesis wherein the diurnal temperature range is related to the fowl's tolerance to thermo-stress.

Utilization Of Golden Snail Flour (GSF) on Ration of Quail

2021 ◽  
Vol 8 (3) ◽  
pp. 194-201
Author(s):  
Vera Novita Sari Siahaan ◽  
T.H. Wahyuni ◽  
A.H.Daulay ◽  
S.R.Lubis
Keyword(s):  
Egg Production ◽  
Fish Meal ◽  
High Protein ◽  
Production Costs ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Egg Weight ◽  
Feed Cost ◽  
Randomized Design ◽  
Protein Feed

Feed is one of the critical factors for the success of livestock production because it contributes 70-80% of production costs. High protein feed ingredients are expensive, so it is necessary to use non conventional feed. Golden snail are pests that interfere to rice growth in agricultural areas, one of which is in North Tapanuli Regency. Golden snail have a high protein content so they are very efficient to use as a source of protein feed. In this study, golden snail in the form of flour was used as a substitute for fish meal in laying quail rations. The research used Completely Randomized Design (CRD) with 4 treatments, namely P0 = 8% fish meal, P1 = 4% GSF, P2 = 8% GSF, P3 = 12% GSF with 5 replications. The research parameters were feed consumption, egg production, egg weight, feed conversion and over feed cost income. The results showed a significant effect of P2 on egg production as much as 31.71% and income over feed cost IDR 2602.15/ head compare to other treatments of quail eggs. However, giving GSF did not show a significant effect on egg weight, feed consumption and ration conversion. The results showed that the use of GSF was suitable as a substitute for fish meal on quail feed an application of 8% GSF for quail feed was a novelty finding.

scholarly journals Divergent selection towards body weight and betaine supplementation on quails performance in tropical environment

2021 ◽  
Vol 306 ◽  
pp. 05017
Author(s):  
Adi Ratriyanto ◽  
Nuzul Widyas ◽  
Sigit Prastowo ◽  
Dafa Feron Andrianto
Keyword(s):  
Body Weight ◽  
Feed Efficiency ◽  
Egg Production ◽  
Divergent Selection ◽  
Tropical Environment ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Egg Weight ◽  
Japanese Quails ◽  
Betaine Supplementation

Initial body weight may affect animal performance. This study investigated the effect of divergent selection based on body weight and betaine supplementation on performance of quails in the tropical environment. In total, 900 7-day-old female Japanese quails were divided into 30 cages of 30 birds in a 3×2 factorial design. The first factor was body weight (Random, High, and Low), and the second factor was betaine supplementation (0% and 0.14%), resulting in 6 treatments. Performance data were collected for 2 periods of 28 days during the laying phase. The variables observed included feed consumption, egg production, egg weight, and feed conversion. The data were analyzed using analysis of variance and continued with Duncan’s Test for significant results. The results showed that there was no interaction between body weight and betaine supplementation on quails’ performance. Random body weight produced more eggs and the highest feed efficiency than Low body weight (P<0.05), although the result did not differ from High body weight. Betaine supplementation enhanced egg weight (P<0.05) than the non-supplemented group but did not affect other variables. It is concluded that Random and High weight and betaine supplementation can be applied to optimize the performance of quails in a tropical environment.

ENERGY UTILIZATION IN THE CHICK IN RELATION TO CERTAIN ENVIRONMENTAL STRESSES

1970 ◽  
Vol 50 (2) ◽  
pp. 285-292 ◽  
Author(s):  
K. Y. LEI ◽  
S. J. SLINGER
Keyword(s):  
Weight Gain ◽  
Feed Efficiency ◽  
High Energy ◽  
Metabolizable Energy ◽  
Low Energy ◽  
Energy Utilization ◽  
Feed Consumption ◽  
Water Restriction ◽  
High Energy Regime ◽  
Environmental Temperatures

Reductions in weight gain, feed consumption and feed efficiency resulted under the stress of water restriction or high population density. The metabolizable energy (ME) content of the feed was unaffected by the severity of the stresses. Elevated and depressed environmental temperatures resulted in reductions in weight gain and feed efficiency, but there were no alterations in the ME content of the feeds. Water restriction decreased the sucrase activity, but not the maltase activity in the intestinal mucosa. Overcrowding had no effect on the level of these mucosal enzymes. At adverse temperatures mucosal sucrase and maltase activities were significantly higher for birds on a low energy than for those on a high energy diet. On the low energy, but not the high energy regime, the sucrase and maltase activities were increased at the elevated and depressed environmental temperatures.

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