Relations Between Fertility, Embryonic Survival and Some Semen Characteristics in the Chicken

Cooper, Doreen M.; Rowell, J. G.

doi:10.3382/ps.0370699

Cited by 69 publications

(30 citation statements)

References 11 publications

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“…was significantly correlated with motility, methylene-blue-reduction time (mbrt), and sperm survival at 4°C. Cooper & Rowell (1958) confirmed the correlations of fertility with motility of sperma¬ tozoa and with their metabolic activity (here measured with resazurin) but found that the parameter most highly correlated with fertility was the per¬ centage of spermatozoa stainable with eosin; by multiple correlation they were able to account for 77% of the variation in fertility among their experi¬ mental cocks. Previously, Sampson & Warren (1939) …”

Section: Introductionsupporting

confidence: 59%

Distribution of Spermatozoa in the Oviduct and Fertility in Domestic Birds

Ogasawara¹,

LORENZ²,

BOBR³

1966

Reproduction

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Summary. Semen from low-fecundity cocks, characterized by relatively large numbers of spermatozoa with abnormal morphology, poor motility and sluggish metabolism, fertilized very few eggs when inseminated mid-vaginally, but produced moderate fertility when deposited in the uterus.The percentage of pre-ovipositally dead embryos was also increased in eggs fertilized by spermatozoa from low-fecundity cocks when these were deposited directly in the uterus.Few spermatozoa from low-fecundity cocks entered and/or survived in oviducal glands, especially in those of the uterovaginal junction.

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Section: Introductionsupporting

confidence: 59%

Distribution of Spermatozoa in the Oviduct and Fertility in Domestic Birds

Ogasawara¹,

LORENZ²,

BOBR³

1966

Reproduction

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“…Savic et al (2004) and Mitrovic et al (2005) came to the similar conclusion. Cooper andRowell (1958), McDaniel et al (1981), Eslick and McDaniel (1992), Elibol et al (2002) and Brake (2003, 2004), concluded that breeder age effect on percentage of chick incubating, noticing also that younger flock (age 31, 37 and 41 weeks) give significantly higher incubating percentage as regards the number of brood eggs (89.3, 91.08 and 90.32%) compared to older flock (age 52 weeks -84.3%; 59 weeks -86.77% and 63 weeks -86.31%). Achieved results about incubating chick percentage in our researches were somewhat inferior compared to cited authors, which is understandable in a way considering that the percent of hatchability is covering the number of incubated, not fertilized eggs.…”

Section: Resultsmentioning

confidence: 99%

“…ascertained by numerous authors as: Cooper and Rowell (1958), McDaniel et al (1981), Eslick and McDaniel (1992), Elibol et al (2002), Brake (2003, 2004), Savic et al (2004), Mitrovic et al (2005) and Abiola et al (2008). Most authors emphasize that younger flocks (age between 29 and 41 weeks), comparing with older flocks (ages between 52 and 68 weeks) achieve, statistically considerably larger intensity of laying brood and fertilized eggs and thereby larger percentage of new laid chicks from total number of incubated eggs.…”

Section: Introductionmentioning

confidence: 99%

The influence of age on the exploitation period in broiler reproduction of parents in Ross hybrid 308

Mitrovic¹,

Djermanovic²,

Djekic³

2010

Afr. J. Biotechnol.

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These investigations were intended to identify the influence of parental flock age at heavy hybrid Ross 308 (usage period) on more important reproductive capabilities (carrying eggs intensity of brood eggs, egg mass, one day old chick mass, relative chick mass share in complete egg mass) and consumption of food per processed -hatched chicken (final product of production cycle). Flock usage period lasted for 40 weeks (all eggs), respectively, 38 (brood eggs) weeks and there was possibility, based on achieved results, with evaluation of phenotype correlation, to get some concrete conclusions about the age influence on analyzed parameters during mentioned flock rising period. Phenotype correlation among investigated characteristics has been identified since second half of parental flock using period, since 41 st week age (20 th carrying eggs week) up to the end of production process when parental flock was 61 week old (41 st egg production week). Flock age has statistically important positive (P < 0.05) influence on carrying eggs intensity of brood eggs until 49 st week (r p = 0.391) and on percentage of chicken feasibility regard the complete number of inputted eggs until 50 th week (r p = 0.434). There was statistically significantly increasing of egg mass and one-day old incubated chicken mass (P < 0.001) as parental flock was older. Complete correlation connectivity has been identified between egg mass and absolute chick mass (P < 0.001), while very strong (P < 0.001) or strong (P < 0.01) correlative connectivity between egg mass and relative chick share [(chicken mass/egg mass) x 100]. Further more, we determined negative correlation between eggs age and food consumption per hatched chicken for all time of breeding broiler parents, except 61 st week when we determined positive coefficient of phenotype correlation (r p = 0.062), but statistically inconsequent.

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“…If cock spermatozoa were found to be liable to temperature shock, more elaborate apparatus, in which temperature could be controlled, would be necessary. Among the difficulties in using the apparatus described by Cooper (1955) cluded for the present that no precautions are necessary against a decline in fertilizing power of fowl spermatozoa resulting from exposure of semen to a rapid fall in temperature when using the apparatus and techniques described by De Silva (1961, 1962, 1963.…”

Section: And Conclusionmentioning

confidence: 99%