Long‐term goose breeding for egg production and crammed liver weight

Shalev, B. A.; Dvorin, A.; Herman, Rachmat; Katz, Z.; Bornstein, S.

doi:10.1080/00071669108417396

Cited by 11 publications

(7 citation statements)

References 1 publication

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“…As a result of 13-year selection, Schneider (1987) increased egg production by 8 eggs. Shalev et al (1991) found an annual breeding progress of 2.7 eggs in a flock of geese.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of reproductive traits and egg traits of crossbred geese with Graylag ancestry

Mazanowski¹,

Bernacki²,

Kisiel³

2005

J. Anim. Feed Sci.

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The aim of this study was to evaluate the reproductive traits and physical traits of the eggs of three-breed crosses of geese -White Kołuda (WK) × Slovakian (Sl) × Graylag (Gr) -in terms of the direction of crossing of the parents, and to determine differences in the chemical composition of eggs at the beginning and at the end of the reproductive period. The highest egg production (37 eggs), egg weight (192.4 g) and body weight (males 7491 g, females 6507 g) were characteristic of the crossbreds Sl'GrWK. The eggs of these geese had high density and a high yolk index, as well as a higher Haugh unit value, compared to those of geese from the other groups. The mutually crossed hybrids WKGr´Sl, which had the lowest body weight (males 5804 g, females 5763 g), had the highest egg fertility (77.3%) and hatchability of goslings from set (67.1%) and fertilized eggs (86.9%). In addition, they had the highest Haugh unit value and the greatest number of pores in the shell. The egg yolks of WKGr´Sl crossbreds contained the highest amount of ash at the end of egg production and the highest amount of water in albumen at the beginning of egg production. During the egg production period, water and ash content increased, and the fat content of the egg yolks of the geese decreased regardless of the direction of crossing of the parents. A statistically significant interaction (time × groups) occurred only for percentage of ash in yolk. During the same period, the levels of water, protein and ash increased in the albumen of the eggs, but time × groups interactions were only found for water and ash percentage.

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“…As a result of 13-year selection, Schneider (1987) increased egg production by 8 eggs. Shalev et al (1991) found an annual breeding progress of 2.7 eggs in a flock of geese.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of reproductive traits and egg traits of crossbred geese with Graylag ancestry

Mazanowski¹,

Bernacki²,

Kisiel³

2005

J. Anim. Feed Sci.

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“…Data for all traits and costs involved were obtained from official bulletins published in Israel (Israel Goose Breeding & Research Farm, 1964to 1995, UK (ADAS, 1981), Canada (Ontario Ministry of Agriculture and Food, 1978), and in USA (Naber, 1979), from reports on the USA-Israel Agriculture & Development (BARD) Fund goose project (Shalev et al, 1982(Shalev et al, -1985, from chapters of Pingel (1990a, b), Shalev et al (1991) and from studies of Shalev (1995). All prices are in US dollars.…”

Section: Methodsmentioning

confidence: 99%

“…Assuming selection would be carried out at least for growth rate and egg production with half the genetic (Shalev et al, , 1991(Shalev et al, , 1995Pingel, 1990a,b;Merritt, 1962). b Based on selection pressure of 20%.…”

Section: Replacement Policymentioning

confidence: 99%

“…It was assumed that for a decrease in annual hatching egg production of 10 eggs, there is a decrease of 1% in fertility and hatchability because of the negative genetic correlation between selection for body weight vs egg production and fertility (Shalev et al, 1991). As egg production increase, each additional hatching egg value is decreased from $2·58 at 20 hatching eggs to $0·60 at 100 eggs.…”

Section: Hatching Eggs Fertility and Hatchabilitymentioning

confidence: 99%

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Genetic-economic evaluation of traits in a goose meat enterprise

Shalev¹,

Pasternak²

1999

British Poultry Science

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1. Goose can be considered as an additional and inexpensive meat source, provided that the marketing age does not exceed 8 weeks. Using the ability of geese to eat grass may reduce the intake of concentrated food up to 30%. 2. According to an equation developed, growth rate accounts for about 58% of the annual breeding gains, egg number 28%, feather yield 10%, fertility and mortality about 2%. These values are about the same for a wide range of food prices. 3. Employing realistic values for expected annual genetic gains reveals that the customary practice of keeping breeders for 5 to 6 years should be replaced by a much shorter cycle of 3 years because the economic gain from the shorter generation interval of selection exceeds the replacement costs.

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“…With rapid early growth and superior meat production performance, fleshy breeds of geese have high economic benefits; however, poor reproductive performance (low egg production of approximately 30-40 eggs per year) has prevented production on a large scale (Shalev et al, 1991). Laying performance in poultry is closely related to the development of ovarian follicles and the establishment of the follicle hierarchy (Koelkebeck et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Differential gene expression in pre-laying and laying period ovaries of Sichuan White geese (Anser cygnoides)

Ding¹,

Han²,

Zhao³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Geese are an economically important poultry species worldwide. Their superior meat production performance and meat quality make them a popular food. However, they are not bred worldwide because their poor laying capacity increases farming costs. To gain a global view of the genes that are differentially expressed between prelaying (P) and laying (L) periods and to develop a database for further studies, we performed large-scale transcriptome sequencing of ovarian tissue collected from Anser cygnoides. In total, 30,151,422 raw reads, with an average length of 151 bp and a total length of 4,552,864,722 bp, were obtained. After primers and adaptors were removed, 19,167,132 clean reads, with an average length of 134.5 bp and a total length of 2,577,297,281 bp, were obtained, among which 1,268,906,694 bp and 1,308,390,587 bp were from L and P ovarian tissue, respectively. The 16,605 assembled sequences were further functionally annotated by comparing their sequences to different protein and functional domain databases and assigning gene ontology (GO) terms. Of these, 511 assembled sequences were considered differentially expressed based on the 2-fold method, among which 396 were assigned at least one GO term. Digital expression analysis using the Kyoto encyclopedia of genes and genomes annotation identified 121 genes that were differentially expressed in the P vs L periods. Five of these are of special interest for further investigation of their roles in determining high reproductive performance. This study provides valuable information and sequence resources for uncovering genes determining high egg-laying performance and for future functional genomics analysis of geese.

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Long‐term goose breeding for egg production and crammed liver weight

Cited by 11 publications

References 1 publication

Characteristics of reproductive traits and egg traits of crossbred geese with Graylag ancestry

Characteristics of reproductive traits and egg traits of crossbred geese with Graylag ancestry

Genetic-economic evaluation of traits in a goose meat enterprise

Differential gene expression in pre-laying and laying period ovaries of Sichuan White geese (Anser cygnoides)

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