P5025 Production of chickens with high body weights, low amounts of abdominal fat, and a high thigh meat yield using DNA microsatellite marker-assisted selection

2016 ◽  
Vol 94 (suppl_4) ◽  
pp. 127-127
Author(s):  
K. Tatsuda
Keyword(s):  
Microsatellite Marker ◽  
Marker Assisted Selection ◽  
Abdominal Fat ◽  
Meat Yield ◽  
High Body ◽  
Body Weights ◽  
Dna Microsatellite

Growth, abdominal fat content, heat production and plasma hormone levels of naked-neck and control broiler chickens

1993 ◽  
Vol 57 (03) ◽  
pp. 483-490
Author(s):  
E. Decuypere ◽  
J. Buyse ◽  
P. Mérat ◽  
J. Zoons ◽  
J. Vloeberghs
Keyword(s):  
Heat Production ◽  
Broiler Chickens ◽  
Abdominal Fat ◽  
Fat Pad ◽  
Depressing Effect ◽  
Naked Neck ◽  
Rearing Temperature ◽  
Body Weights ◽  
Lower Critical Temperature ◽  
And Control

AbstractThe depressing effect of high rearing temperature (30°C) on body weights of heterozygous naked-neck broiler chickens was apparently less pronounced than in control broiler chickens but no effect of genotype, rearing temperature or interaction on abdominal fat pad content was found. Both genotype and rearing temperature affected plasma tri-iodothyronine but not growth hormone or insulin-like growth factor 1 levels in plasma. Rearing temperature of 20°C or 30°C had effect neither on the slope of the thermoregulatory heat production curves nor on the lower critical temperature in either genotypes except at 4 weeks of age.

scholarly journals Results of Rearing Broiler Chickens Under Various Systems

2014 ◽  
Vol 6 (4) ◽  
pp. 19 ◽  
Author(s):  
Joanna Kuzniacka ◽  
Marek Adamski ◽  
Rafal Czarnecki ◽  
Miroslaw Banaszak
Keyword(s):  
Broiler Chickens ◽  
Abdominal Fat ◽  
Wheat Grain ◽  
Meat Yield ◽  
Group I ◽  
Average Intake ◽  
Group Ii ◽  
Comparison Of The Results ◽  
Intensive System

The aim of the study was comparison of the results of rearing broilers kept under intensive and semi-intensive systems, fed with complete feeds with an addition of various proportions of wheat grain. The study was carried out on 100 broilers, HUBBARD – FLEX, of both sexes. The birds were reared up to 42 days of age in an intensive system (group I), as well as in a semi-intensive system (group II). In the 5th week of rearing, in the nutrition of group II, 30% of complete feed was replaced with wheat grain, increasing its proportion in the dose up to 50% in the last week of rearing. System of keeping broilers did not affect significantly their bodyweight at the end of rearing, as well as their meat yield and muscle content in carcasses. Chicken fed with complete feeds, kept under an intensive system were distinguished by higher fattiness expressed as an abdominal fat weight, as well as by lower average intake of feed mixtures per individual broiler.

Body weights, carcass characteristics, fat content, and their relationships in ganders of the Selected Chinese and Synthetic strains, and Embden-sired strain crosses

2005 ◽  
Vol 85 (4) ◽  
pp. 455-461
Author(s):  
J. N. B. Shrestha ◽  
A. A. Grunder
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Liver Weight ◽  
Abdominal Fat ◽  
The Other ◽  
Carcass Weight ◽  
Similar Proportion ◽  
Chinese Strain ◽  
Body Weights ◽  
Total Fat

In 1986, 247 ganders of the Selected Chinese and Selected Synthetic strains, and Large Embden and Small Embden- sired strain crosses at the Greenbelt farm of the Centre for Food and Animal Research in Ottawa, Canada, were evaluated. The Chinese and Synthetic (developed from the Pilgrim, Chinese and Hungarian) strains had been selected for four generations to increase egg production over a 24-wk laying period and body weight at 16 wk of age, and simultaneously decrease total fat content. Two Embden strains, Large and Small, denoting contrasting body sizes, had been imported from the United States of America for potential use in crossbreeding as terminal sire strains. Strains and strain crosses were ranked from high to low, for body weights at 9 and 16 wk of age, liveweight at slaughter and eviscerated carcass weight. Large Embden × Selected Chinese were largest followed by Small Embden × Selected Synthetic and Small Embden × Selected Chinese strain crosses, in turn followed by the Selected Chinese and Selected Synthetic strains. Small Embden-sired crosses were not significantly different except for body weight at 9 wk of age and eviscerated carcass weight. The Large Embden × Selected Chinese strain cross had a dressing percent of 63, significantly higher than 60–61% for the remaining strains or strain crosses. In general, the ranking of strains and strain crosses for liver weight was similar to rankings for body weights, except that the Small Embden-sired crosses were not significantly different from the Selected Chinese strain, and the Small and Large Embden-sired Selected Chinese crosses had similar liver weight. The Selected Synthetic strain had a significantly smaller neck than that of the other strains and strain crosses; Small Embden-sired crosses were not significantly different. Large Embden × Selected Chinese and Small Embden × Selected Synthetic strain crosses and the Selected Chinese strain had similar neck weight. When fat was expressed as a percentage of carcass weight, the strains and strain crosses had similar proportion of abdominal fat. On the other hand the Large Embden × Selected Chinese strain cross had significantly more intestinal fat (4.83%) than any of the strains and strain crosses (2.97 to 3.73%) and a similar proportion of total fat (10.87%) to the Small Embden × Selected Chinese strain cross (8.79%) but significantly more than the remaining strains and strain crosses (7.53 to 8.20%). The correlations of body weights at 9 and 16 wk of age with eviscerated carcass weight (0.65 and 0.90), abdominal fat weight (0.32 and 0.59), intestinal fat weight (0.27 and 0.55) and total fat weight (0.23 and 0.47) were deemed potentially useful. The correlations between percentage of fat parameters and body weights were low (0.20 a n d 0.37) or negligible. The inherent potential in the large-bodied Embden strain for growth can complement the small-bodied Selected Chinese strain that excels in egg production, fertility and hatchability to produce a strain cross with considerable promise for commercial production of goose meat. Key words: Chinese strain, Synthetic strain, Embden strain, body weights, abdominal and intestinal fat

RESPONSE OF MALE AND FEMALE BROILERS TO DIET PROTEIN

1988 ◽  
Vol 68 (3) ◽  
pp. 881-889 ◽  
Author(s):  
S. LEESON ◽  
L. J. CASTON ◽  
J. D. SUMMERS
Keyword(s):  
Body Weight ◽  
Protein Content ◽  
Abdominal Fat ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Breast Meat ◽  
Meat Yield ◽  
Low Protein ◽  
Breast Meat Yield ◽  
Protein Diets

Two experiments were conducted to note the broilers' response to graded levels of dietary protein (CP). Female birds were fed one of six diet series ranging from 22–20–18 to 18–18–16% CP from 0–21 days, 21–35 days and 35–42 days, respectively. Males were fed diet series from 28–24–22 to 20–18–16 over the same time periods (Table 1). Each diet program was tested with four replicate groups of 60 birds. Body weight and feed intake were monitored at time of feed change-over and at termination of experiment. Twenty birds per replicate were used for carcass analyses. Females were heavier when diets of higher protein content were offered (P < 0.05). These birds consumed more feed (P < 0.05) but exhibited feed efficiency that was not different to birds fed diets of lower protein content. Carcass weight and breast meat yield were not influenced by diet, although higher-protein diet series resulted in reduced proportional abdominal fat pad size (P < 0.01). Diet protein had no effect on body weight of male birds at 42 d (P > 0.05). Male birds reared on a program involving die lowest CP levels of 20–18–16 exhibited inferior feed utilization relative to birds from most other treatments (P < 0.05). Programs with low-protein diets for males resulted in reduced carcass weight, reduced breast meat yield and increased abdominal fat deposition (P < 0.05). It is concluded that male birds can be reared on very low protein diets without loss of weight, although carcass quality will be inferior. Female broilers are heavier when diet protein intake is increased through use of diets with higher protein content. Key words: Broiler, diet protein, performance, carcass composition

Obesity and high body weights predict ledipasvir/sofosbuvir treatment failure

2017 ◽  
Vol 66 (1) ◽  
pp. S516
Author(s):  
J.B. Lai ◽  
M.A. Witt ◽  
J. Ready ◽  
M.P. Pauly ◽  
D. Witt
Keyword(s):  
Treatment Failure ◽  
High Body ◽  
Body Weights

scholarly journals Multiple-trait QTL mapping for body and organ weights in a cross between NMRI8 and DBA/2 mice

2007 ◽  
Vol 89 (1) ◽  
pp. 47-59 ◽  
Author(s):  
CHRISTINA NEUSCHL ◽  
GUDRUN A. BROCKMANN ◽  
SARA A. KNOTT
Keyword(s):  
Body Weight ◽  
Abdominal Fat ◽  
Multiple Trait ◽  
Organ Weights ◽  
Lean Control ◽  
Genome Wide ◽  
Body Weights ◽  
Inner Organs ◽  
Liver And Kidney ◽  
Parental Lines

Multiple-trait analyses have been shown to improve the detection of quantitative trait loci (QTLs) with multiple effects. Here we applied a multiple-trait approach on obesity- and growth-related traits that were surveyed in 275 F2 mice generated from an intercross between the high body weight selected line NMRI8 and DBA/2 as lean control. The parental lines differed 2·5-fold in body weight at the age of 6 weeks. Within the F2 population, the correlations between body weight and weights of abdominal fat weight, muscle, liver and kidney at the age of 6 weeks were about 0·8. A least squares multiple-trait QTL analysis was performed on these data to understand more precisely the cause of the genetic correlation between body weight, body composition traits and weights of inner organs. Regions on Chr 1, 2, 7 and 14 for body weights at different early ages and regions on Chr 1, 2, 4, 7, 14, 17 and 19 for organ weights at 6 weeks were found to have significant multiple effects at the genome-wide level.

scholarly journals The effect of sex and slaughter age on growth, slaughter, and carcass characteristics in Lindovskaya geese reared under breeder conditions

2020 ◽  
Vol 44 (5) ◽  
pp. 1087-1092
Author(s):  
Aykut Asım AKBAŞ ◽  
Mehmet SARI ◽  
Kadir Emre BUĞDAYCI ◽  
Mustafa SAATCI
Keyword(s):  
Body Weight ◽  
Carcass Characteristics ◽  
Abdominal Fat ◽  
Growth Characteristics ◽  
The Body ◽  
Controlled Conditions ◽  
Regular Care ◽  
Group 12 ◽  
Body Weights ◽  
Slaughter Age

The study was conducted to determine growth, slaughter, and carcass characteristics of Lindovskaya geese. While a total of 237 goslings, 101 males, and 136 females were used to determine their growth characteristics, 16 male geese in total were used for the detection of the slaughter and carcass characteristics. Each slaughter group (12 weeks and 16 weeks old) consisted of 8 male geese. It was determined that the effect of sex on body weight values by week was significant (P < 0.05). In addition to this, the body weights of male geese were higher than the body weights of the female geese in all weeks. In the study, it was determined that the effect of the slaughter age on the weights of slaughter, head, blood, intestinal fat, and abdominal fat was significant (P < 0.05). Additionally, the values of the geese slaughtered at 16 weeks were higher compared to the geese slaughtered at 12 weeks. It was detected that the effect of slaughter age on the weight of the hot carcass, cold carcass, neck, breast and back, and other parts were significant (P < 0.05). Moreover, it was concluded that these values increased as the slaughter age increased. As a result, it can be said that slaughter age at 16 weeks was more preferable than at 12weeks under breeder conditions. Additionally, it has been revealed that Lindovskaya geese need to be reared under controlled conditions, with regular care and feeding, to obtain better results.

Sign in / Sign up

Export Citation Format

Share Document