scholarly journals Development of digestive organs of female broilers under varying post-hatch fasting times

2018 ◽  
Vol 39 (2) ◽  
pp. 893
Author(s):  
Thiago Pereira Ribeiro ◽  
Edmilson Santos de Freitas ◽  
Ricardo Clemente ◽  
Flavia Kleszcz da Cruz ◽  
Tatiana Carlesso dos Santos
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
The Other ◽  
Lower Body ◽  
Digestive Organs ◽  
Total Length ◽  
Body Development ◽  
Body Weights ◽  
Fasting Time ◽  
Compensatory Gain

This study aimed to evaluate the effect of post-hatch fasting time on the weights of body and digestive organs of chicks. Fertile eggs from 62-week-old broiler breeders (Cobb Fast lineage) were incubated and, after hatching, female chicks were randomly divided into six treatments, which corresponded to fasting periods (0, 6, 12, 24, 48, and 72 hours), with 40 chicks per treatment. At 01, 03, 06, and 10 days after hatching, measurements of body weight; residual yolk weight; relative weights of proventriculus + gizzard, intestine + pancreas and liver; and intestine total length were made. At 6 days of age, the chicks submitted to post-hatch fasting, for up to 12 hours, demonstrated greater development, with body weights higher than the other birds. Yet, when fed, no compensatory gain was observed and, at 10 days of age, the birds submitted to 48- and 72-h fasting remained with a lower body development. Intestine growth was also compromised by post-hatch fasting, being reduced in both weight and length. A post-hatching fasting of up to 24 hours did not interfere with the weights of body and digestive organs of 10-day-old female broiler chickens. However, 48- and 72-h post-hatch fastings affected adversely the weight and growth of digestive organs in the birds.

Effect of Changes in Ambient Temperature on Spontaneous Activity, Food Intake and Body Weight of Goldthioglucose-Obese and Nonobese Mice

1957 ◽  
Vol 188 (3) ◽  
pp. 435-438 ◽  
Author(s):  
M. J. Fregly ◽  
N. B. Marshall ◽  
J. Mayer
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Ambient Temperature ◽  
The Body ◽  
Lower Body ◽  
Obese Mice ◽  
Ambient Temperatures ◽  
Exposure To Cold ◽  
Running Activity ◽  
Body Weights

Goldthioglucose-obese mice cannot adjust their food intake to meet the increased energy requirements due to cold. At all ambient temperatures above 15°C the spontaneous running activity of these animals is less than that observed for nonobese controls. Activity of obese mice is maximal at 19°C and minimal at 15°C or lower. Body weights decrease during exposure to cold. In contrast to that of obese mice, running activity of nonobese controls is maximal at an ambient temperature of 25°C but nearly ceases at 15°C or lower. The food intake of these animals increases in the cold and remains elevated even at temperatures at which activity decreases. The body weight of nonobese controls is either maintained constant or increases during exposure to cold air.

scholarly journals Reproductive Toxicities Caused by Swainsonine from Locoweed in Mice

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Chenchen Wu ◽  
Ke Feng ◽  
Dezhang Lu ◽  
Dujian Yan ◽  
Tiesuo Han ◽  
...  
Keyword(s):  
Body Weight ◽  
Treatment Group ◽  
Intraperitoneal Injection ◽  
First Generation ◽  
Lower Body ◽  
Estrous Cycles ◽  
Treatment Groups ◽  
Three Generations ◽  
Body Weights ◽  
Liver And Kidney

Swainsonine is the primary toxin in locoweeds. It causes intention tremors, reproductive dysfunction, emaciation, and death. The objective of the present study was to evaluate the potential reproductive and developmental toxicities caused by swainsonine in mice. The treatment groups consisting of three generations of mice were given a range of concentrations of swainsonine by intraperitoneal injection (2.50 mg/kg body weight (BW), 1.20 mg/kg BW, 0.60 mg/kg BW, and 0 mg/kg BW). The 0 mg/kg BW group exhibited significantly fewer estrous cycles and an increased number of estrous ones compared to the 2.50 mg/kg BW, 1.20 mg/kg BW, and 0.60 mg/kg BW groups (P<0.05). All three generations of mice treated with swainsonine had significantly higher spleen, liver, and kidney indices and significantly lower body weights compared to the 0 mg/kg BW group (P<0.05). For the first and second generations of treatment group, the copulation indices and the numbers of live pups on postnatal days (PND) 0, 4, and 15 were significantly decreased compared to those of the 0 mg/kg BW group (P<0.05). The fertility and gestation indices of the treatment group of the first generation were significantly increased compared to the 2.50 mg/kg BW, 1.20 mg/kg BW, and 0.60 mg/kg BW groups of the second generation (P<0.05). Cumulatively, these results indicate that swainsonine may cause reproductive and developmental toxicities in mice in both parents and offspring.

scholarly journals Effects of Sweet Potato Leaves, Roselle Calyces and Beetroot on Body Weight, Selected Hematological and Biochemical Parameters in Broiler Chicken

2019 ◽  
Vol 10 (2) ◽  
pp. 133
Author(s):  
Gaymary George Bakari ◽  
Robert Arsen Max ◽  
Shedrack Reuben Kitimu ◽  
Shaabani Mshamu ◽  
Benigni Alfred Temba ◽  
...  
Keyword(s):  
Body Weight ◽  
Sweet Potato ◽  
Biochemical Parameters ◽  
Broiler Chickens ◽  
Hemoglobin Concentration ◽  
The Other ◽  
Control Group ◽  
Positive Effects ◽  
Hematological And Biochemical Parameters ◽  
Sweet Potato Leaves

The study was conducted to assess the effects of sweet potato leaves, roselle calyces and beetroot tubers on body weight, selected hematological and biochemical parameters in broiler chickens. Eighty four (84) broiler chickens aged four weeks were randomly assigned into six groups of 14 chickens each. The first group (G0) remained as untreated control while the other groups were the treated groups which received 25% of ground sweet potato leaves (G1), rosella calyces (G2), beetroot tubers (G3) and their mixtures (G4 and G5) for 28 days. Following inclusion of these different vegetables, blood samples were collected and analyzed for selected hematological and biochemical parameters on day 0, 7, 14, 21 and 28. Results showed that consumption of the three vegetables caused significant decreases (p < 0.05) in body weight, serum glucose and cholesterol. On the other hand, hemoglobin concentration, packed cell volume (PCV) and total white blood cell (WBC) counts were shown to increase significantly (p < 0.05) compared to the control group. It is concluded that the hypoglycemic and hypocholesteremic effects in chickens following consumption of the three vegetables together with their positive effects on PCV and WBC counts are important qualities which can be utilized in the management of conditions such as obesity, diabetes mellitus, hyperlipidemia and cardiovascular diseases (atherosclerosis and coronary disease) in humans. Further studies in other animals are recommended.

scholarly journals Effects of selection for independent changes in two highly correlated body weight traits of mice

1977 ◽  
Vol 29 (2) ◽  
pp. 133-145 ◽  
Author(s):  
J. C. McCarthy ◽  
D. P. Doolittle
Keyword(s):  
Body Weight ◽  
Response Selection ◽  
The Other ◽  
Index Selection ◽  
Correlated Responses ◽  
Body Weights ◽  
Independent Culling ◽  
Selection For ◽  
Highly Correlated

SUMMARYMice were selected for high and low body weight at 5 and at 10 weeks of age. Selection was performed (1) separately for each trait, and (2) for various combinations of the two traits, using (a) independent culling levels and (b) restricted indices. Two-way selection for each trait separately gave large responses and correlated responses. Selection by independent culling levels intended to increase 5-week weight while restricting change in 10-week weight gave no demonstrable response; selection by culling levels intended to decrease 5-week weight while restricting change in 10-week weight resulted in decreases in body weights at both ages. Index selection, intended to change weight at one age while holding that at the other age constant, was generally successful. Observed responses did not conform very well with predicted responses for either index or culling levels selection. The significance of these observations in regard to the problem of selection involving restriction of traits is discussed.

EFFECTS OF DIETARY ASPIRIN (ACETYLSALICYLIC ACID) ON THE INCIDENCE OF SUDDEN DEATH SYNDROME AND THE GENERAL PERFORMANCE OF BROILER CHICKENS

1983 ◽  
Vol 63 (2) ◽  
pp. 469-471 ◽  
Author(s):  
F. G. PROUDFOOT ◽  
H. W. HULAN
Keyword(s):  
Growth Rate ◽  
Sudden Death ◽  
Deleterious Effect ◽  
Broiler Chickens ◽  
Dietary Supplementation ◽  
Sudden Death Syndrome ◽  
The Other ◽  
Reduced Body ◽  
Body Weights ◽  
Overall Mortality

A total of 2400 broiler chickens were used in four experiments to estimate the effects of using 0.04, 0.08 and 0.16% aspirin (ASA) as dietary supplements. Not only did the ASA dietary supplementation have no significant (P < 0.05) beneficial effect on the incidence of sudden death syndrome but it also had a deleterious effect on overall mortality which was significant (P < 0.01) in two of the four experiments. Furthermore, the addition of ASA at 0.16% to the diet resulted in reduced body weights which were significant at P < 0.05 in two experiments and at P < 0.10 in the other two experiments. Key words: Aspirin, sudden death syndrome, broiler chickens, growth rate

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

Phenotypic and genetic characteristics of growth of Peking ducklings under Egyptian conditions

1988 ◽  
Vol 110 (1) ◽  
pp. 179-190
Author(s):  
Gh. A. El-Sayiad ◽  
I. F. M. Marai ◽  
E. A. Afifi
Keyword(s):  
Body Weight ◽  
Genetic Correlations ◽  
The Body ◽  
The Other ◽  
Genetic Characteristics ◽  
Retarded Growth ◽  
Body Weights ◽  
Different Ages ◽  
Growth Character ◽  
Successive Generations

SummaryPeking ducklings were classified at 6 weeks of age according to their body weights in two categories: R, below the overall mean of the flock which were considered as retarded growth; and L, those of body weight equal to the overall mean and above which were considered as large. From each group, males and females were chosen to be parents of the next generation in a ratio 1:5 at 6 months of age and four systems of matings were conducted: RR, LL, RL and LR.At all ages studied the large ducklings were significantly heavier than retarded growth ones and had significantly greater body gain, during the two successive generations.The RL and LR matings were heavier than the RR and LL groups at the different ages studied, indicating an effect of heterosis and that the retarded growth character is controlled by few pairs of genes. The differences due to mating systems were not significant either in body weight or body gain, except in body weight at 18 and 24 weeks and relative gain at 6 weeks of age in which the differences were significant (P <0·05) in the second generation.The other environmental factors studied were sex, month of hatch and 6-week body weight.Heritability estimates were 0·489, 0·509, 0·576, 0·346, 0·713, 0·809, 0·651 and 0·386 for body weight at hatch 4, 6, 8, 12, 16, 18 and 24 weeks of age, respectively, using the data which were adjusted for the effects of sex, month of hatch, 6-week body weight and mating system. The same estimates were 0·482, 0·554, 0·578, 0·352, 0·713, 0·808, 0·650 and 0·386, respectively, using the same data but adjusted for month of hatch and sex only.Phenotypic and genetic correlations between body weights at different ages for the two sets of data were estimated. The phenotypic correlations were negative between body weight at hatch and each of the body weights at 16 and 18 weeks of age for the two corrected sets of data. The genetic correlations were negative between hatch weight and each of the other body weights for the two adjusted sets of data and between body weight at 4 weeks of age and each of the body weights at 16, 18 and 24 weeks only for the first set of data. Phenotypic and genetic correlations between the body weights in older birds were highly positive.

Correlation between body weight and morphometric traits in local and exotic chickens to dietary levels of Moringa oleifera (Lamarck) seed meal

2020 ◽  
Vol 47 (3) ◽  
pp. 1-6
Author(s):  
A. O. Akintunde ◽  
A. A. Toye ◽  
A. A. Ademola ◽  
A. E. Jubril
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Moringa Oleifera ◽  
Pearson Correlation ◽  
Morphometric Parameters ◽  
Seed Meal ◽  
Morphometric Traits ◽  
Body Weights ◽  
Dietary Treatments ◽  
The Relationship

Moringa oleifera (Lamarck) seed is a novel feedstuff that can be incorporated into poultry nutrition and a potential cheaper alternative than the current conventional feedstuff in Nigeria. The aim of the study was to determine the effect Moringa oleifera seed meal (MOSM) on the relationship between body weight and body morphometric parameters of local and exotic chickens. The total sum of one hundred and ninety two chickens comprising of ninety six Nigerian Ecotype local chickens and Marshall broiler chickens in four dietary treatments with three replicates (of eight birds per replicate for each genotype of chicken) per treatment. Four experimental diets containing 0, 5, 10 and 15 % MOSM were used. Data were analyzed using the Pearson Correlation model. The study showed that the association between morphometric parameters and body weights decreased significantly (p<0.05) with increasing levels of MOSM (r decreased from 0.72 to 0.52) however all the associations were positive which signified that the inclusion of MOSM influenced the level of relationship between body weight and body morphometric parameters. This study concluded that 5% dietary inclusion of MOSM would improve growth performance in YENLC and Marshall broiler chickens.

Effects of the Protein-Bound Polysaccharide Preparation, PSK on Spontaneous Breast Cancer in Mice

1988 ◽  
Vol 16 (4) ◽  
pp. 286-293 ◽  
Author(s):  
T. Fujii ◽  
K. Saito ◽  
Y. Oguchi ◽  
K. Matsunaga ◽  
Y. Kobayashi ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Body Weight ◽  
Tumour Size ◽  
Survival Rates ◽  
Test Group ◽  
Normal Diet ◽  
The Other ◽  
Control Population ◽  
Body Weights ◽  
Spontaneous Tumours

The protein-bound polysaccharide preparation, PSK was tested for its ability to suppress carcinogenesis in spontaneous tumours in C3H/OuJ mice. They were divided into two groups of 40 individuals each. A normal diet was given to one group, establishing a control population, while the other group had 2% PSK added to their feed. Amount of feed consumed, body weight and tumour size were recorded weekly for 1 year. Within 15 weeks, 90% of the control population had developed tumours. In the test group the incidence of cancer and the number of tumours was significantly suppressed, and survival rates were improved. The amount of feed consumed and body weights of control and test groups were about the same.

Genetic relations between carcass fat and body weight in mice

1960 ◽  
Vol 55 (3) ◽  
pp. 317-321 ◽  
Author(s):  
P. Hull
Keyword(s):  
Body Weight ◽  
Genetic Relationship ◽  
Abdominal Fat ◽  
Carcass Composition ◽  
The Other ◽  
Theoretical Treatment ◽  
Control Line ◽  
Correlated Responses ◽  
Age Changes ◽  
Body Weights

Three different stocks of mice were selected for five generations for high body weight at 3, 4½, or 6 weeks of age. Changes in body weight at the three ages and in abdominal fat weight, an index of carcass composition, which occurred in the three lines were compared. It was found that the proportion of fat in the carcasses of the selected animals increased markedly in the lines selected for high 3-week weight, while in the other two lines the proportion remained the same as that in the control line.The theoretical treatment of the genetic relationship between body weights at different ages and between body weight and abdominal fat was reasonably adequate in accounting for the correlated responses actually observed.

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