The present study was carried out to determine whether dietary <I>Yucca schidigera</I> powder would affect egg yield parameters and egg shell quality of laying Japanese quail (<I>Coturnix coturnix Japonica</I>). In this study, 30 female Japanese quails were used. The experimental quails were divided into two dietary treatment groups of similar ...

An experiment was conducted to investigate the effect of genotype (meat-type or egg-type) on the AME digestibility of selected ingredients. The practice of using only one value for apparent metabolizable energy (AME) of feed ingredients for all classes of poultry has been questioned. The ability to convert nutrients to the ...

Five commercial white egg layer strains (Current-Bovans, Older-Bovans, Oldest-Bovans, Experimental-Bovans, and Dekalb) were used to compare performance and nutrient requirements when fed three protein levels (16.00, 14.85 and 13.99%). There were eight replicates of 15 hens (67 wk of age) for each treatment and the trial lasted 10 weeks. The ...

A 120-day feeding trial was conducted to evaluate cellulolytic enzyme supplementation on production indices and nutrient utilization of laying hens fed soybean hull based diets. Seven experimental layers diets were formulated incorporating soybean hull meal at 0%, 10%, 20%, 30% (without enzyme supplementation) and 10, 20 and 30% (with 2.0% ...

This study was conducted to determine the effects of adding DL-methionine (Met) in low-protein diet (Low-CP; 14% CP) on egg production, reproductive organs, abdominal fat and chemical liver composition of laying hens under tropical conditions. Four hundred and eighty commercial laying hens (Isa-brown) during 24-44 weeks of age were fed ...

Hens of a commercial strain of SCWL hens were subjected to a molt and allowed to resume production before being placed on test diets consisting of a nutritionally complete basal diet supplemented with three sources of sodium (sodium chloride, sodium bicarbonate, and sodium sulfate) at three levels of added sodium ...

In this study, the effect of feeding oregano essential oil and α-tocopheryl acetate on hen performance and egg quality, were investigated. Ninety-six Lohmann laying hens, 32-week-old, were allocated into four groups. One of the groups was given a control diet (CONT), another group a diet supplemented with 200 mg/kg α-tocopheryl ...

The effect of probiotic supplements (0, 400, 1000 and 2000 gr Bioplus 2B ton<SUP>-1</SUP> feed providing 0, 1.28x10<SUP>6</SUP>, 3.2x10<SUP>6</SUP> and 4.6x10<SUP>6</SUP> cfu gr<SUP>-1</SUP> feed concentration) on egg quality and laying hen`s performance was investigated on eighty white leghorn Hy-Line, W-36 strain. Evaluated traits were egg production, egg weight, egg mass, ...

Objective of this research was to determine the effect of enriched feed `Bio-omega` on the hens performance under practical conditions in the farm Totally of 16,000 Hisex Layers were divided into two treatment groups (8,000 hens in each group), housed in cages (4 hens in each cage) and were to ...

An experiment was conducted to determine the effect of dietary factors on induction of fatty liver hemorrhagic syndrome (FLHS) and its diagnosis methods with use of selected serum enzymes on Hy-line W-36 hens. The experiment was conducted in completely randomized design with 6 treatment groups and 4 replicates each with ...

A total of ninety-six Shaver 579 pullets were fed on isocaloric and isonitrogenous diet with vitamin-mineral premixes, Supramixes Layer, Acimix Super-L and Adivit-L and without premix (control) in the age duration from 25 to 40 weeks to evaluate the efficacy of different commercial premixes. Daily feed intake and body weight ...

In this study, we examined the role of different amounts of dietary fishmeal, a component of chicken diet on cell-mediated immune response of chickens. Forty eight laying white Leghorn chickens were randomly divided into 4 groups and fed diets containing 0, 1.5, 3 or 6% fish-meal. Six chickens from each ...

An experiment was conducted to determine the effects of dehydrated kitchen waste (DKW) product as a feedstuff for laying hens. Fresh food wastes of a retirement house were prepared for the experiment. This was mostly leftover food, plate scrapings and cooking residue. The kitchen waste was blended and dried by ...

The study was completely randomized design. Six hundred and seventy two commercial laying hens (Babcock B-308) from 21 to 33 weeks of age were used. The hens were divided into 3 groups; each group consisted with 6 replications of sixteen layers each, and then two hens were kept in a ...

A total of 63 day-old straight run Layer chicks up to 45 weeks of age on 3 isonitrogenous and isoenergetic diets D<SUB>1</SUB> (6% PC+ 0% SWP), D<SUB>2</SUB> (0% PC+ 6% SWP), and D<SUB>3</SUB> (0% PC+ 8% SWP) were fed to observe the effect of dietary SWP on growth and egg ...

Twenty-four layers in their eighth month in lay were used to study the effects of dietary inclusion of Siam weed (<I>chromolaena odorata</I>) leaf meal (SWLM) on egg quality characteristics. SWLM was incorporated into the diets at 0%, 2.5% 5.0% and 7.5% in diets 1, 2, 3 and 4 respectively. Total ...

In this study, the effects of microbial phytase supplementation in diets were investigated on feed intake, egg production and feed efficiency in laying hens. The experiment was carried out between the July 15th to October 15th. 120 Nick Chick White hens at 210 days of age were divided into four ...

A total of 288 leghorn laying hens were used in an experiment to determine methionine+cystine (TSAA) requirements. The addition of six levels of DL-methionine to a basal diet containing 14.4% of crude protein resulted in 0.484, 0.534, 0.584, 0.634, 0.684, and 0.734% TSAA contents. This experiment lasted from 22 to ...

A 2 x 2 factorial experiment of two protein levels (17.0 and 15.9%) with and without supplemental fat was conducted to determine the effect of supplemental fat on performance of commercial Hy-line W-36 at different protein levels from 47 to 55 week of age. Hens at 47 week of age ...

360 Hy-line W36 hens were fed the diets with four different levels of fat (0, 1.5, 3.0 and 4.5%) to determine different levels of supplemental fat on performance of laying hens from 35 to 44 week of age. Hy-line W-36 hens at 35 week of age were randomly assigned into ...

The purpose of the present study was to compare the effect of <I>Solanum melongena</I> (garden egg plant), apple and oat on serum lipid profile of rats fed a hypercholesterolemic diet. One hundred rats were grouped into five groups of 20 animals each; one group was fed with grower`s marsh alone ...

The biochemical and haematological indices of birds fed with varying dietary inclusions of siam weed (<I>Chromolaena odorata</I>) leaf meal (SWLM) were determined using 24 laying hens in their eighth month of lay in an eight week trial. Four diets were formulated for the purpose of this study. Diet 1 served ...

Two experiments were conducted to test whether egg performance and egg shell quality during peak egg production are affected by the diets supplemented with NaHCO<SUB>3</SUB> or K<SUB>2</SUB>CO<SUB>3</SUB>. In experiment 1 four diets were formulated using different inclusions of NaCl, NaHCO<SUB>3</SUB> and K<SUB>2</SUB>CO<SUB>3</SUB> to give the dietary electrolyte balances (DEB) as ...

The purpose of this study was to investigate the effect of probiotic (0, 400, 1000 and 2000 g Bioplus 2B ton<sup>-1</SUP> feed providing 0, 1.28 x 10<SUP>6</SUP>, 3.2 x 10<SUP>6</SUP> and 4.6 x 10<SUP>6</SUP> cfu g<sup>-1</SUP> feed concentration) in different levels of barley substitution for corn diets (0, 50 and ...

In this study 90 male and 180 female quail were used. Eggs were collected 10 day daily and storaged under 50-60 moisture and 15 EC temperature conditions. Chicks obtained from Eggs collected and stored on each day were taken as a group. Totally 1165 chicks obtained from 10 groups were ...

In this study, Sorghum bicolor cultivars CSV 15, PSV 16, CSH 16 and S 35 were supplied to farmers in Mahabubnagar and Ranga Reddy districts in Andhra Pradesh, India, in 2003 for poultry feed trials. Sorghum replaced maize at 0, 50 and 100% levels, including a 100% replacement + 3% ...

This experiment was carried out to determine the effects of using L-carnitine and humate alone or in combination in quail diets on laying performance, egg traits and blood parameters. A total of 280 Japanese quails aged 10 weeks, divided into one control group and three treatment groups, were used. The ...

The effects of increasing proportions of soybean soapstock (SSS) in laying hen diets on egg quality parameters and on the fatty acid (FA) composition of the yolk were studied. One hundred sixty Babcock B-300 x laying hens, 20 wk of age, were allotted to 5 dietary treatments comprising a control ...

This investigation was undertaken to evaluate the effects of dietary ZnSO4 supplementation on ammonia volatilization and nitrogen retention in hen manure. One hundred twenty, 45-wk-old commercial Leghorn laying hens were sequentially fed diets with 1000, 2000, and 3000 ppm Zn as ZnSO4 (Zn-1000, Zn-2000, and Zn-3000), then followed by two ...

A method was developed to label the egg load of Episyrphus balteatus (De Geer) (Diptera: Syrphidae) by feeding adult females with the fluorescent dye Rhodamine B. In a preliminary experiment aimed at selecting an appropriate dye concentration, gravid females reared in insectary conditions were provided for two successive days with ...

The objective of this study was to evaluate near-infrared reflectance spectroscopy (NIRS) as a tool to predict the physicochemical composition of breast meat samples of laying hens fed 4 different diets, a control and 3 diets enriched with different sources of n-3 polyunsaturated fatty acids: marine origin, extruded linseed, and ...

Once mated, the optimal strategy for females of the monandrous butterfly, Pararge aegeria, is to avoid male contact and devote as much time as possible to ovipositing, as there is little advantage for females to engage in multiple matings. In other butterfly species the presence of males during egg laying ...

Effects of the chitin synthesis inhibitors (CSIs) diflubenzuron, hexaflumuron, and lufenuron on the Formosan subterranean termite, Coptotermes formosanus Shiraki, primary reproductives were studied in the laboratory. Incipient colonies were established by collecting and pairing C. formosanus alates and placing them in dishes containing an artificial diet. Three groups of 56 ...

1. The effect of age on ovarian function was studied in 245-, 350-, 500-, 700- and 800-d-old Lohmann hens. The effect of three different methods for moult induction on ovarian function and corticosterone concentration was studied in 500-d-old hens. 2. No significant reductions in ovarian weight or in number of ...

The objective of the current study was to examine the effect of dietary ratio of linoleic acid (LA) to alpha-linolenic acid (LNA) on the humoral immune response in laying hens and further on the passive immunity of their progeny. Thirty-two Single Comb White Leghorn laying hens, 24 wk of age, ...

In the present study, 288 8-wk-old Japanese quail were randomly distributed into 6 experimental groups (48 birds per group) and fed the following diets for 140 d: 1) 0 (control); 2) 10 mg of fumonisin B1 (FB1); 3) 50 microg of aflatoxin B1 (AFB1); 4) 50 microg of AFB1 + ...

Seasonal differences in the number and length of gonotrophic cycles of Ochlerotatus albifasciatus were determined in a temperate area of Argentina, in addition to analysis on number of eggs laid by females corresponding to the number of bloodfeedings per gonotrophic cycle throughout the year. Landing females were collected by using ...

A flock of breeding ring-necked pheasants received feed with a high selenium content. Within 4 days of eating the toxic feed, the rate of egg production began to decrease, and bird aggression increased. Approximately 12% of the hens died within a week. Necropsy of the hens revealed colorless fluid around ...

The purpose of this study was to determine if playing hen calls at the feeder affects broiler chick productivity and welfare. Hatched chicks (n = 832) were equally placed into 16 pens. Broilers in 8 treated pens received 3 min of hen-feeding calls once each hour during the first 9 ...

1. A 28-d experiment was conducted to evaluate the effects of fumonisin B1 (FB1) on egg production and egg quality of young laying Japanese quail fed on fumonisin-contaminated rations. 2. To this end, 128 7-week-old birds were randomly distributed into 4 experimental groups (32 birds per group) and given rations ...

Rubidium chloride (RbCl) has been used for the study of vector biology and behavior, although the efficacy of marking, egg production, and survivorship of marked females have been poorly studied. Four concentrations of RbCl were tested, among which 0.025 M was the best for marking Aedes albopictus: more than 80% ...

This study investigated whether feeding different wheat varieties to laying hens could influence colonization with the intestinal spirochaete Brachyspira intermedia. Fifty ISA-Brown laying hens were divided into two groups. One group were fed a laying-hen diet formulated with wheat variety Westonia, and one were fed the diet incorporating variety Stilleto. ...

1. One-day-old Taiwan Native Breeder female chicks were fed on maize/soybean growing diets without supplemental vitamin E from hatch to 17 weeks of age. After 17 weeks the birds (n = 300) were randomly assigned to 5 dietary treatments and fed on maize/soybean laying diets supplemented with 0, 40, 80, ...

Induced molting is process used by commercial producers to extend the reproductive life of a laying hen. Typically, producers deprive hens of feed for a period of 7-14 days while reducing the amount of light exposure to the hens. This allows for regression of the reproductive tract and for a ...

Negative relationships between egg number and egg size are commonly seen in many animal taxa, supporting the idea that there is a trade-off between egg number and egg size resulting from the allocation of resources to either one or the other. In parasites, where availability of resources is presumably very ...

An experiment was conducted to evaluate the effects of feeding laying hens grains naturally contaminated with a combination of Fusarium mycotoxins. Parameters measured included performance, organ weights, and plasma chemistry. One hundred and forty-four, 45-wk-old laying hens were fed diets including: (1) control, (2) contaminated grains, and (3) contaminated grains ...

A commercial-feed-grade form of zinc propionate was examined as a potential feed amendment at a concentration of 1% zinc to induce molt in 90-wk-old hens. Dietary treatments consisted of 4 treatment groups of 28 birds each randomly assigned to either (1) molted conventionally by feed withdrawal, (2) 1% zinc as ...

The objectives of this study were to evaluate the effects of supplementing maize meal and soybean meal, separately or mixed, on egg production performance of two breeds of scavenging hens under on-farm conditions. Treatments were: (1) confined, with a mixed feed (75% maize meal and 25% soybean meal) ad libitum ...

(1) Fertile hatchability was superior from a broiler breeder flock at 29 weeks of age than at 68 weeks of age because of decreased mortality at all stages of embryo development. (2) Eggs that were either turned or not turned during the 0 to 7 d, 8 to 14 d ...

Target Audience: Feed miller, Poultry Producers, Research Scientists and Teachers. The effect of quantitative feed restriction during rearing on mature body weight and subsequent egg production of pullets was investigated in two experiments. All the birds in the two experiments were fed ad libitum on 20% crude protein and 2649kcal/kg ...