scholarly journals Перспективи використання треоніну в годівлі племінних курей вітчизняної селекції

2013 ◽  
pp. 187-191
Author(s):  
О. М. Гончаренко
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Hatching Eggs ◽  
The Cost

Введення в пшенично-кукурудзяно-соєвий комбі-корм у період вирощування ремонтного молодняку (18–23 тижні) і утримання племінних курей (24–51 тиждень) L-треоніну до рівня 0,60 і 0,63 % досто-вірно збільшує: живу масу – на 5,4 %, яйценос-ність – на 5,5 %, заплідненість яєць – на 1,1 %, вивід курчат – на 2,4 %, кількість інкубаційних яєць – на 6,7 % і зменшує витрати корму на 10 інкубаційних яєць на 6,6 %. У разі використання понад норму треоніну для племінних курей в яйці підвищилась як сума амінокислот (замінних і неза-мінних), так і концентрація треоніну – на 6,4 і 12,1 %, по відношенню до контролю, що поглиблює положення про виробництво продуктів харчування з функціональними властивостями. Introduction to the wheat-corn-soybean feed during rearing (18–23 weeks) and the maintenance of breeding chickens (24–51 weeks) L-threonine to the level of 0.60 and 0.63% significantly increased body weight – 5, 4%, egg production – by 5.5%, the fertilized eggs – by 1.1%, the birth of chickens – by 2.4%, the number of hatching eggs – by 6.7% and reduces the cost of feed for 10 hatching eggs by 6.6

scholarly journals Capon Production – Breeding Stock, Rooster Castration And Rearing Methods, And Meat Quality – A Review

2014 ◽  
Vol 14 (4) ◽  
pp. 769-777 ◽  
Author(s):  
Jolanta Calik
Keyword(s):  
Body Weight ◽  
Meat Quality ◽  
Egg Production ◽  
The Body ◽  
Meat Production ◽  
Religious Ritual ◽  
Resources Conservation ◽  
Hatching Eggs ◽  
Rearing Methods

Abstract Over the last decade, there has been an increased consumer interest in niche food products with special aroma and flavour, and rich in nutrients. Poland has a large (19 lines) and valuable collection of laying hens enrolled in the genetic resources conservation programme. Research to date has shown these hen breeds to vary in phenotype, productivity, and biological quality of hatching eggs and meat. A significant problem in using hens for both egg and meat production is that the number of unwanted cockerels increases with increasing intensity of egg production. This problem can be overcome by castration of cockerels. Roosters were sterilized long before Christ, first as a religious ritual and then to increase the body weight of birds. The qualities of capon meat were noticed much later when it turned out to be more delicate, juicy and tender compared to rooster meat. The aim of this paper was to review the literature on capon production, including the effects of castration on the bird’s body and on the quality of meat obtained.

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.

SELECTION LIMITS: HAVE THEY BEEN REACHED IN THE POULTRY INDUSTRY?

1984 ◽  
Vol 64 (2) ◽  
pp. 217-221 ◽  
Author(s):  
PETER HUNTON
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Multiple Objectives ◽  
Shell Quality ◽  
Key Words Genetics ◽  
Physiological Limit ◽  
Selection For ◽  
Hatching Eggs ◽  
Almost All ◽  
Commercial Turkey

Present emphasis is on the heavy turkey, grown to relatively heavy body weight and subsequently jointed and further processed. Rapid selection for broad-breasted conformation led to problems in natural mating; hence the fertilization of almost all commercial turkey hatching eggs by artificial insemination. Meat chickens have experienced similar selection for growth and conformation. While reproductive performance has not been affected as much as with turkeys, rate of lay, fertility and hatchability of meat chickens has room for improvement. Increased feed intake, in response to selection for growth improvements has led to increased fat deposition, an unwanted feature. Breeding programs for egg production stocks differ fundamentally from those for meat stocks because they are concerned with multiple objectives. Many of these are of low heritibility and some are antagonistic to others. Because of this, selection intensity for any one trait has not been as high as among meat chickens and turkeys. Selection for increased rate of egg production has often been based on "part record;" since this is measured at a time of maximum lay, this trait approaches what may be regarded as a physiological limit, but not necessarily a genetic one. Persistency of lay, on the other hand, shows potential for further improvement. Egg weight and body weight, as they determine feed efficiency, are discussed, as are egg interval and shell quality. No genetic limit has been reached for any of these traits. The application of genetic disease resistance to Marek's disease, for example, affords considerable scope for future improvements. The large resevoir of genetic diversity, coupled with the use of multiple objectives, suggests that even after 40 years of relatively intense selection, genetic variation does not appear to be exhausted. Key words: Genetics, selection, egg production, broilers, turkeys

scholarly journals Comparative study on production performances of the Japanese, White, Black and Brown quail at fifth generation

2020 ◽  
pp. 65-68
Author(s):  
S Faruque ◽  
AKFH Bhuiyan ◽  
MOA Rahman ◽  
MSK Sarker ◽  
NR Sarker
Keyword(s):  
Body Weight ◽  
Computer Program ◽  
Egg Production ◽  
Management Practices ◽  
General Linear Model ◽  
Breeding Value ◽  
Fifth Generation ◽  
Standard Management ◽  
Hatching Eggs ◽  
Meat Type

Four quail genotypes namely Japanese (J), White (W), Black (Bl) and Brown (Br) quail are being maintaining at Bangladesh Livestock Research Institute to develop meat type quail genotype. Studied fifth generation (G5) quails were hatched from 4th generation (G4) parents based on estimated breeding value for 5th week body weight. Standard management practices were followed during study period. Hatching eggs were collected from every single pen of the selected parent quails. A total of 1750 day-old chick comprising of J, W, Br and Bl were hatched in one batch. Collected data were analyzed in a CRD by General Linear Model (GLM) Univariate Procedure in SPSS Computer Program. Body weight of quails at 3rd, 4th, and 6th week of age were (p<0.001) influenced by genotype. The 6th week body weight was 126.51, 133.19, 130.80 and 115.40g, respectively for J, W, Br and Bl genotypes. Body weight was higher (p<0.001) in W and Br followed by Bl and J quail genotypes at different age. The hatchability rate was (p<0.001) higher in J (58.38%) compared to other three genotypes of W (50.30%), Br (47.79%) and Bl (46.45%), respectively. Chick mortality during 0 to 5 week age did not varied (χ2 = 2.19; p>0.05) among Bl (8.78%), J (6.66%), Br (6.31%) and W (5.36%) genotypes. Comparing the performances, W quail was superior for body weight and Bl quail for egg production. Bangladesh J. of Livestock Res. 21-25: 65-68, 2018

Effects of time of commencement and duration of protein restriction on egg-type pullets reared in summer and winter

1977 ◽  
Vol 17 (84) ◽  
pp. 59 ◽  
Author(s):  
S Abu-Serewa
Keyword(s):  
Body Weight ◽  
Food Consumption ◽  
Egg Production ◽  
Body Weight Gain ◽  
Control Group ◽  
Production Traits ◽  
Low Protein ◽  
Feeding Costs ◽  
The Cost ◽  
Restrictive Diet

A diet containing 10 per cent protein and 11.31 MJ M.E. kg-1 was fed to six groups of eggtype pullets from either day old or four weeks for 8, 12 and 16 weeks in both summer and winter. The same diet was also fed to another group from 8 to 20 weeks of age in both seasons. During the rest of the rearing period of each treatment a diet containing 16 per cent protein was fed to 20 weeks of age. The control group was fed a diet containing 20,16 and 12 per cent protein and 12.1 5 MJ M.E. kg-1 from day old, 6 and 14 weeks of age respectively. In both seasons, feeding the restrictive diet resulted in a reduction in the cost of feeding and in body weight gain to 20 weeks of age; and a delay in maturity compared with the control without adversely affecting egg production traits or increasing food consumption during the laying phase. Pullets fed the restrictive diet from day old ate less food during rearing, matured later and tended to lay smaller eggs throughout the laying period than their counterparts which were restricted from four to eight weeks of age in both experiments. Food consumption was not affected by the duration of restriction in either rearing season. However, feeding costs and body weight of pullets at the end of both rearing seasons were reduced progressively by increasing the duration of restriction. Rate of mortality was not affected by the rearing treatments when the birds were reared in summer, whereas in winter pullets restricted from day old for 12 to 16 weeks had the higher rate of mortality. Mortality during laying was not affected by the rearing treatments in either season. The results of both experiments suggest that for maximum return the optimum age for feeding the low protein diet is from 4 to 20 weeks of age in either season.

scholarly journals TUDIES ON THE DESIGN OF COMPARATIVE POULTR Y TEST S: 1. A COMPARISON OF THREE STRAINS OF WHITE LEGHORNS HOUSED IN REPLICATED FIFTY-BIRD PENS AND INTERMINGLED IN A LARGE PEN

1957 ◽  
Vol 37 (2) ◽  
pp. 168-178 ◽  
Author(s):  
F. G. Proudfoot ◽  
B. F. Cheney ◽  
R. S. Gowe
Keyword(s):  
Body Weight ◽  
Feed Efficiency ◽  
Egg Production ◽  
Strain Differences ◽  
Feed Consumption ◽  
White Leghorn ◽  
Genetic Merit ◽  
Consumption Data ◽  
Group A ◽  
The Cost

An experiment was conducted to estimate the magnitude of the pen effects and to compare the performance of three genetically different S.C. White Leghorn strains in twelve small pens (50-bird size) and a large intermingled group (a pen of 677 birds).There were no significant pen effects for any traits. The repeatability (intra-class correlations) estimates for all traits measured were relatively high: hen-housed egg production,.83; survivor egg production,.77; 160-day body weight,.93; March body weight,.94; laying-house mortality,.47; and feed efficiency,.84.Although strain differences were highly significant, there was no difference in egg production or mortality between the birds in the small pens and in the large intermingled group, and no evidence of any strain × replicate interaction.On the basis of this study, it is concluded that there is no advantage to intermingling strains after housing in order to compare their genetic merit, when an adequate number of uniformly equipped small pens are available and the management of the pens is very similar. There are two main disadvantages to intermingling strains, namely, the loss of feed consumption data, and the cost of trapnesting the birds in the test.

Probiotics in the diets of laying quails

2020 ◽  
pp. 60-66
Author(s):  
O. Merzlyakova ◽  
V. Rogachyev ◽  
V. Chegodaev
Keyword(s):  
Bacillus Subtilis ◽  
Bacillus Licheniformis ◽  
Egg Production ◽  
Positive Impact ◽  
Hematological Parameters ◽  
Economic Effect ◽  
Egg Laying ◽  
Control Group ◽  
Egg Mass ◽  
The Cost

The efficiency of introducing probiotics based on strains of Bacillus subtilis, Bacillus licheniformis and their consortium in the amount of 150 g/t of feed into the diets of laying quails has been studied. The experiment lasting 182 days has been carried out on four groups of quails with 30 heads in each. The quails have been housed in the broiler battery in compliance with the required microclimate conditions. Quails of all groups have been received the main diet (compound feed) developed taking into account their age and physiological characteristics. The quails of the 1st, 2nd and 3rd experimental groups in addition to the main diet received probiotics (150 g/t compound feed) based on strains Bacillus subtilis, Bacillus licheniformis and their consortium, respectively. It has been found that feeding the laying quails of the consortium of strains Bacillus subtilis and Bacillus licheniformis had the most significant positive impact on their productive performance, it allowed to increase egg production by 7,81 %, egg laying intensity by 5,0 %, egg mass yield by 9,77 %, while reducing feed expenditures for 10 eggs by 13,35 %. The yield of hatching eggs has been increased by 7,03 %, hatchability of chickens from laid and fertilized eggs by 8,33 and 8,35 %, brooding waste decreased by 21,74 %. Hematological parameters of quails during the whole experiment were within the physiological norm. The economic effect calculated on the basis of data on the cost of compound feed, probiotics and the cost of sold eggs of quail laying was 14,56 % in the 3rd experimental group (in relation to the control group).

PERFORMANCE OF DWARF BROILER BREEDERS IN LAYING CAGES AND FLOOR PENS AND OF NORMAL BREEDERS IN FLOOR PENS

1975 ◽  
Vol 55 (4) ◽  
pp. 741-747 ◽  
Author(s):  
J. H. STRAIN ◽  
A. P. PILOSKI
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
General Pattern ◽  
Female Offspring ◽  
Male Offspring ◽  
Production Cycle ◽  
Feed Conversion ◽  
Broiler Breeders ◽  
Feed Costs

Dwarf broiler breeders in single-bird cages (DC), in floor pens (DF) and normal broiler breeders in floor pens (NF) were compared for their own and their offspring’s performance. No differences were observed in rate of egg production at 147–329 days of age between the NF and DF birds (48 vs. 47%) whereas the DC birds laid at the rate of 40%. Hen-housed egg numbers for the same period followed the same general pattern (NF, 81; DF, 82; DC, 70 eggs/bird). DF and DC birds consumed less feed per dozen eggs than the NF birds (3.4 vs. 4.3 kg/doz). Egg weights in the early part of the production cycle were not significantly different among the groups but at 294 days of age the normal birds laid larger eggs than the dwarfs (65 vs. 62 g). Dwarfs in cages reached 50% production earlier than the DF or NF birds. Female offspring from the three groups grew at the same rate and weighed 1.7 kg at 56 days of age but there were significant differences in feed conversion (NF, 2.46; DF, 2.43; DC, 2.53 kg/kg body weight produced). Male offspring had small but not statistically significant differences in body weight at 56 days (NF, 2.16; DF, 2.12; DC, 2.09 kg) or feed conversion (NF, 2.30; DF, 2.29; DC, 2.34 kg/kg body weight). Mortality in the offspring ranged from 2.7 to 9.2% but did not differ significantly. Income over feed costs per broiler started did not differ from the three groups regardless of the meat price – feed price combination considered. However, when profit was computed on a breeder hen basis, the DF females were more profitable than either the NF or DC females.

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