Evaluation of egg production in Italian white geese in their first year of reproduction

2019 ◽  
Author(s):  
J. Kuźniacka ◽  
J. Biesek* ◽  
M. Banaszak ◽  
M. Adamski
Keyword(s):  
Egg Production ◽  
First Year

scholarly journals Effect of Breed and Production System on Physicochemical Characteristics of Meat From Multi-Purpose Hens

2015 ◽  
Vol 15 (1) ◽  
pp. 247-261 ◽  
Author(s):  
Michał Puchała ◽  
Józefa Krawczyk ◽  
Zofia Sokołowicz ◽  
Katarzyna Utnik-Banaś
Keyword(s):  
Fatty Acids ◽  
Production System ◽  
Egg Production ◽  
Muscle Development ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Human Nutrition ◽  
Housing System ◽  
First Year ◽  
Free Range

AbstractThe objective of the study was to determine the effect of breed (A) and free-range production system (B) on quality of meat from hens of two breeds, Greenleg Partridge (Z-11) and Rhode Island Red (R-11), which are under the biodiversity conservation programme in Poland. Subjects were 120 hens of each breed, which were assigned to two treatment groups differing in the housing system: 60 layers were kept on litter without outdoor access (C) and 60 layers were raised on litter with access to free range (FR). At 56 weeks of age, 8 hens were randomly chosen from each group, slaughtered, and subjected to slaughter analysis. It was found from the study that carcasses from 56-week-old multi-purpose hens are characterized by poor muscle development and considerable fat content. After the first year of egg production, the meat of hens was characterized by low tenderness, high water holding capacity, and a fatty acid profile that was desirable from the viewpoint of human nutrition. In the meat of hens that completed their first year of egg production, the profile of fatty acids was beneficial from the standpoint of human nutrition. The free-range production system reduced carcass fatness, enhanced carcass and meat yellowness, and increased the proportion of polyunsaturated fatty acids (both n-6 and n-3) in breast and leg muscles while causing no significant changes in the content of saturated fatty acids. The meat of the native Z-11 breed was found to contain less saturated and more unsaturated fatty acids compared to the meat of R-11 hens. There was no statistically significant effect of the production system on the sensory evaluation of cooked meat and broth.

Crossing – method of increasing the reproductive qualities geese

10.12737/1362 ◽  
2013 ◽  
Vol 8 (3) ◽  
pp. 101-105
Author(s):  
Гадиев ◽  
Rinat Gadiev ◽  
Галина ◽  
Chulpan Galina
Keyword(s):  
Cost Effectiveness ◽  
Egg Production ◽  
First Year ◽  
Trial Group ◽  
The Third ◽  
Limited Company ◽  
Hatching Eggs ◽  
The Cost ◽  
Experimental Group

The aim of our research was to increase the productive and reproductive qualities of geese breeders by crossing the white Hungarian and Kuban rocks. To achieve this aim, we should solve the following problems: to study the economically advantageous features of geese flocks of different genotypes and to calculate the cost-effectiveness of the research results. Materials and methods. The experiments were carried out in the Limited company “Bashkirskaya ptitsa” of Blagovar district of Bashkortostan in 2009-2012 by geese flocks of white Hungarian, Kuban breeds and their crosses. To study the productive and reproductive qualities of geese flocks we formed four groups of 64 head of adult geese of first year at the rate of 3 to 1 gander goose. The first group was equipped with Hungarian white goose breeds, the second - the Kuban , the third - a cross between those, obtained by crossing the white Hungarian geese ganders with Kuban, and the fourth - a cross between the Kuban gander and white Hungarian geese. The research was carried out for 150 days. The process parameters and feeding of geese corresponded to VNITIP recommendations. According to the research, we found that the geese of III trial group (♂Hungarian × ♀ Kuban) outnumbered white peers of Hungarian breed and other groups in egg production by 9.6 and 2.2%, respectively, with 3.9% yielding Kuban. The highest content of carotinoids, vitamin A and B2 were found in the eggs of hybrid geese of III group, which amounted to, respectively, 16.05 mkg/g, 9.31 and 8.73 mkg/g. The highest number of conditional geese of first category had also cross-bred geese of third experimental group (♂Hungarian × ♀ Kuban) - 1,447 heads or 85.7%, which is 4.3, 5.9 and 2.2 % had more than a white Hungarian, Kuban breeds of geese and other crossbred groups. Output. Thus, due to the high egg production, the quality of hatching eggs and day-old chicks, the breeding of hybrid geese, obtained in crosses with a white Hungarian geese with Kuban rocks, yielded additional revenue of 119,751.7 rubles and increase profitability by 11.91% , compared with the parental forms Kuban breed geese.

Organ development in relation to egg-laying capacity in the fowl

1954 ◽  
Vol 45 (2) ◽  
pp. 148-155 ◽  
Author(s):  
E. S. E. Hafez
Keyword(s):  
Egg Production ◽  
Alimentary Canal ◽  
Egg Laying ◽  
First Year ◽  
Organ Development ◽  
Ovarian Weight ◽  
High Class ◽  
Early Maturing ◽  
Maturation Rate

Eighty-nine Fayomi pullets were classified into three major classes High, Medium and Low according to the intensity of egg laying. Six birds in each class were slaughtered. The major body organs were dissected and weighed. The number and diameter of the visible oocytes were recorded. The dressing out percentage was obtained. The results were as follows:1. During the first year of laying, the averagenumber of eggs laid per day was 0·50, 0·42 and 0·24 eggs for the High, Medium and Low classes respectively.2. There were significant differences in the ovarian weight, length and weight of oviduct, these being highest in the High class.3. The number of visible oocytes was some 200 in all classes. There were, however, differences between classes in the maturation rate of the oocytes as measured by the differences in the diameter of successive ones.4. The weight of blood, feathers, head, wings and legs were higher in the Low than in the High; these are all early maturing organs.5. The weights of the full alimentary canal and the empty gizzard were higher in the High than in the Low, this might be accounted for by a greater appetite and to intake of feed induced by the higher egg production.6. There were no significant differences in the weight of the circulatory, excretory and respiratory organs which are needed for the physiological welfare of the birds.7. The dressing out percentage was higher in the Low and Medium than in the High. This may be due to the greater drainage of nutrients required for high egg production.

Impact of Wildfire on the Nesting behaviour of Birds in Heathland

1991 ◽  
Vol 18 (3) ◽  
pp. 249 ◽  
Author(s):  
MG Brooker ◽  
I Rowley
Keyword(s):  
Western Australia ◽  
Egg Production ◽  
Abundant Species ◽  
High Rate ◽  
First Year ◽  
Nest Sites ◽  
Adequate Food ◽  
Nesting Behaviour ◽  
The Mean ◽  
Nesting Substrate

This paper describes the effects of wildfire on the nesting behaviour of some species of birds in a heathland community at Gooseberry Hill, Western Australia. The most severe fire during the nine year (1981-89) study was a hot summer burn in January 1985, which destroyed 95% of the study area. In the spring following that fire, 81% of the species previously known to breed in the area were still able to nest. The nesting substrate, height, site and aspect for three of the most abundant species (splendid fairy-wrens, western thornbills and yellow-rumped thornbills) were examined in detail. In the immediate post-fire year, all three used as nest sites only those plant species which regenerate by sprouting. The mean height of splendid fairy-wren nests in shrubs was lower than in unburnt habitat, although the wrens also built some nests in unusually high sites in trees in the first two seasons after fire. The mean height of western thornbill nests did not change but nest placement in a favoured substrate, Xanthorrhoea preissii, varied according to time since fire. Yellow-rumped thornbill nests built in burnt habitat tended to be higher and in a more restricted range of substrates than previously. Breeding of splendid fairy-wrens was delayed by three to five weeks in the first year after fire and the number of nests built per group had almost doubled by the second season. Only 59% of adult female western thornbills attempted to nest in the season immediately following the 1985 fire and the onset of breeding in burnt habitat was up to five weeks later than in unburnt. The delay by splendid fairy-wrens and western thornbills was attributed to a shortage of nesting material and adequate food for egg production, respectively, whereas the increase in the number of nests built by splendid fairy-wrens was attributed to a high rate of nest failure. At least two species (white-browed scrubwren and white-cheeked honeyeater) did not nest for two years after the 1985 fire and Acanthiza apicalis has not nested up to the present time (five years). The fire-modified habitat appeared beneficial to little button-quail and elegant parrot, which nested on the study area only after fire. White-winged triller and dusky woodswallow were more numerous breeders after fire than previously. Our findings highlight the importance of detailed long-term studies for estimating adequate fire-free intervals necessary for the conservation of resident avian species. A minimum period of at least 10 years is suggested for heathlands of south-western Australia.

Dispersal of alates and establishment of new colonies in Cryptotermes havilandi (Sjöstedt) (Isoptera, Kalotermitidae)

1962 ◽  
Vol 53 (2) ◽  
pp. 265-286 ◽  
Author(s):  
W. Wilkinson
Keyword(s):  
Egg Production ◽  
Potassium Dichromate ◽  
Behaviour Pattern ◽  
First Year ◽  
Atmospheric Conditions ◽  
Factors Affecting ◽  
Port Harcourt ◽  
Important Pest ◽  
Termite Attack ◽  
Lethal Doses

Cryptotermes havilandi (Sjöst.) is an important pest of domestic timber in West Africa, and in 1957 a study of certain aspects of its biology was made at Port Harcourt, Nigeria.The alate is positively phototactic on emergence, and the main flights occur at dusk, between 1800 and 1900 hr. Heavy flights continue until 2200 hr., but few alates can be seen after 0100 or before 1600 hr. There is a peak of activity in the drier months of January and February, but flights take place in every month. Emergence for flight is associated with drier atmospheric conditions.After a change to negative phototaxis, followed by shedding of the wings, the dealates search for a nest site. Tandem behaviour does not occur. The dealates cannot bore into sound wood, and a hole or crack is essential for colony foundation. The entrance to the hole is sealed with material carried in the gut of the insect, according to a fixed behaviour pattern. Dealates seeking to enter wood prefer holes between one and a half and three millimetres in diameter, and cannot use those of less than one or more than five millimetres in diameter. Preference by dealates for particular species of wood was not shown conclusively. There was no discrimination against wood containing lethal doses of borax or Celcure (a proprietary mixture consisting essentially of potassium dichromate, copper sulphate and acetic acid or chromium acetate).The rate of egg-production, the incubation period, and the duration of the first three instars are recorded. At the rate estimated, egg-production by a physogastric queen could maintain populations in excess of 3,000. Neoteinics are readily produced in isolation from all but the first three larval instars. They may lay eggs from 35 days onwards, and in their first year have much greater fecundity than primary queens.The economic applications of the observations and experiments are discussed, together with some factors affecting testing of timbers against termite attack.

A Nosema (Microsporida) epizootic in fairy shrimp (Crustacea: Anostraca)

1976 ◽  
Vol 54 (7) ◽  
pp. 1161-1164 ◽  
Author(s):  
Graham R. Daborn
Keyword(s):  
New Species ◽  
Egg Production ◽  
First Year ◽  
Fairy Shrimp ◽  
A New Species

A new species of Nosema (Microsporida) is recorded in two species of Branchinecta. In the first year of occurrence (1970) 100% of B. gigas and 91% of B. mackini were infected at the beginning of June. Mortality of infected animals was much higher than of uninfected ones. Infections recurred in 1971 with maximum values of 47% and 57% in B. gigas and B. mackini, respectively, and in 1972 with values of <10% in each, but they were not evident in 1973. No effect on host egg production was detected.

The Restricted Ovulator Chicken: A Unique Animal Model for Investigating the Etiology of Ovarian Cancer

2010 ◽  
Vol 20 (5) ◽  
pp. 738-744 ◽  
Author(s):  
James R. Giles ◽  
Robert G. Elkin ◽  
Lindsey S. Trevino ◽  
Mary E. Urick ◽  
Ramesh Ramachandran ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Animal Model ◽  
Egg Production ◽  
Ovarian Tissue ◽  
The Other ◽  
Production Data ◽  
First Year ◽  
Wild Type ◽  
Plasma Estradiol ◽  
Collection Period

Objective:The main goal of this study was to compare the incidence of ovarian cancer (OC) in 2 genetically different lines of hens-one that generally fails to lay eggs (the mutant "restricted ovulator" [RO] strain) and the other consisting of the wild-type (WT) siblings of the mutant RO hens.Methods:Individual egg production data were obtained over a 972-day period for 31 RO hens and 33 WT hens. At 38 months of age, hens were killed, and their abdominal cavities were examined for any gross evidence of tumors. Samples of ovarian tissue were processed and assessed for histopathology and protein expression of ovalbumin. Plasma estradiol concentrations were also determined.Results:Only 1 (3%) of the 31 RO hens was diagnosed with OC as compared with 9 (27%) of the 33 WT hens (P < 0.05). Wild-type hens laid more eggs than did RO hens during the 31-month collection period (average of 422 vs 28, respectively; P < 0.05). Although there was no difference in overall rate of ovulation between hens with and without OC, WT hens diagnosed with OC laid a greater percentage of their total number of eggs in the first year of production. Plasma estradiol concentrations were higher (P < 0.01) in RO versus WT hens.Conclusions:The results of this study strongly suggest that the number of ovulatory events is directly related to the incidence of OC in chickens. Clearly, other factors modify the risk of OC because there was no difference in ovulation rate between WT hens with and without OC. The mutant RO hen represents a valuable animal model for studying the etiology of OC.

Breeding

1928 ◽  
Vol 1 (4) ◽  
pp. 37-41
Keyword(s):  
British Columbia ◽  
Egg Production ◽  
First Year ◽  
University Of British Columbia ◽  
Average Production ◽  
Scientific Agriculture ◽  
The Mean

The First Year Egg Production of Barred Plymouth Rocks by V. S. Asmundson, University of British Columbia, Vancouver. Scientific Agriculture, Vol. IX., No. 2, 1928.In this study of 569 records of first year production it was found that average production had increased by nearly twenty eggs or from 187 eggs in 1920–21 to 206 in 1925–26. The mean annual egg production of the 569 birds was 198 eggs which was practically identical with the average for Barred Rock pullets entered in the British Columbia contests.

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