scholarly journals Response of Broilers to Feeding Low-Calcium and Phosphorus Diets Plus Phytase Under Different Environmental Conditions: Body Weight and Tibiotarsus Mineralization

2006 ◽  
Vol 85 (11) ◽  
pp. 1923-1931 ◽  
Author(s):  
P. Catalá-Gregori ◽  
V. García ◽  
F. Hernández ◽  
J. Madrid ◽  
J.J. Cerón
Keyword(s):  
Body Weight ◽  
Environmental Conditions ◽  
Low Calcium ◽  
Calcium And Phosphorus

Calcium and Phosphorus Retention on Low-Calcium Diets

1961 ◽  
Vol 39 (3) ◽  
pp. 220-224
Author(s):  
Frances A. Johnston ◽  
Rebecca A. Folsom
Keyword(s):  
Phosphorus Retention ◽  
Low Calcium ◽  
Calcium And Phosphorus

scholarly journals Growth studies in commercial broiler birds offered citric acid in formulated feed with low mineral density

2021 ◽  
Author(s):  
Shivani Katoch ◽  
Sumani Sharma ◽  
Varun Sankhyan ◽  
Daisy Wadhwa ◽  
Arun Sharma ◽  
...  
Keyword(s):  
Citric Acid ◽  
Total Phosphorus ◽  
Intestinal Tract ◽  
Live Weight ◽  
Microbial Count ◽  
Mineral Density ◽  
Low Calcium ◽  
Commercial Broiler ◽  
Calcium And Phosphorus ◽  
Homeostatic Mechanisms

Abstract A study was conducted to evaluate citric acid (CA) as an additive in poultry broiler diet with lower mineral density of calcium and phosphorus in commercial broiler poultry birds under complete randomized design. For this purpose, Vancobb-400 strain day old broiler chicks (n=320) were divided into 4 main treatment groups T0, T1, T2 and T3. Each treatment group was further divided into8 replicates with 10 chicks in each. T0 served as control diet and was given standard corn- soy flake based ration(Pre-starter%; CP;Ca;TP--23,1.00,0.70, Starter;22,1.10,0.72 and Finisher;20,0.99.70)and treatment T1 served as standard ration with added 0.5 per cent CA with no change in chemical composition (Pre-starter %; CP;Ca;TP23,1.00,0.70, Starter; 22,1.10,0.72 and Finisher;20,0.99.70). Treatment T2 was given standard cornsoy flake based ration containing 0.5 per cent CA with low calcium (Ca) and total phosphorus (TP) content (Pre-starter %; CP;Ca;TP --23,0.90,0.66,Starter; 22,0.99,0.71 and Finisher;20,0.90,0.69)whereas treatment T3 was given standard corn- soy flake based ration containing 0.5 per cent CA with moderately low calcium (Ca) and total phosphorus (TP) content(Pre-starter %;CP;Ca;TP--23,0.80,0.65,Starter;22,0.88,0.70 and Finisher;20,0.79,0.68)as per ICAR (2013) standards. Perusal of the results revealed that broiler birds offered moderately low Ca and TP exhibited higher growth performance (P<0.05) for gain in weight, feed intake, feed conversion efficiency and carcass traits viz. dressing percentage and forequarters weight. Addition of 0.5 per cent CA in low and moderately low Ca and TP offered diets conferred protection to birds by lowering mortality in birds through reduction in total microbial count in the lower gastro intestinal tract. Results of the experiment revealed activation of homeostatic mechanisms in birds offered moderately low Ca and TP with added 0.5% CA modulating enhanced availability of calcium and phosphorus as evident in metabolic trial, blood and tibiae bone studies but the homeostatic mechanism was less pronounced when Ca and TP density in diet was low. Overall economics exhibited lowest cost of producing, per kg live weight in broiler birds offered moderately low Ca and TP with added 0.5 % CA. In conclusion, birds offered corn soya based diet with moderately low mineral viz. calcium and total phosphorus as per ICAR 2013 standard with added 0.5 per cent citric acid can enhance the growth, improve carcass characteristics and improve the FCR of broilers though favourable environment in lower intestinal tract and activation of homeostatic mechanisms of calcium and phosphorus digestion and absorption, thus economizing the cost of production.

Quality characteristics and hatchability of eggs and serum electrolytes concentration of Gola, Giribaz and Ghiachundi pigeon breed

2021 ◽  
Vol 7 (2) ◽  
pp. 107-112
Author(s):  
Khaled Mahmud Sujan ◽  
Manik Biswas ◽  
Sakhawat Hossain Tareq ◽  
Md Kamrul Islam
Keyword(s):  
Body Weight ◽  
Serum Sodium ◽  
Analytical Techniques ◽  
The Body ◽  
Phosphorus Concentration ◽  
Serum Electrolytes ◽  
Final Body Weight ◽  
Sodium Potassium ◽  
Crop Fields ◽  
Calcium And Phosphorus

The weather and vast areas of crop fields along with housing premises of Bangladesh are suitable for pigeon farming. The experiment was conducted to evaluate the characteristics of eggs and serum electrolyte concentration of Gola, Giribaz and Ghiachundi pigeon squabs. Three pairs of each breed were reared in the cage with commercial feed and water. After laying eggs, the length and width of eggs were recorded. After hatching of eggs, eggshell thickness was recorded. The thickness of the eggshell was 0.15±0.01 mm, 0.15±0.01 mm, 0.15±0.00 mm for Gola, Giribaz and Ghiachundi breeds respectively. The body weights of the squabs were recorded at 7th and 45th day. The squabs were sacrificed on 45th day and the blood sample was collected and serum sodium, potassium, calcium and phosphorus concentration were measured by using appropriate analytical techniques. Serum sodium, potassium, calcium and phosphorus were: 102.93±15.95 (mmol/L), 11.18±2.19 (mmol/L), 6.20±1.11 (mmol/L), 4.53±0.45 (mmol/L) for Gola breed; 101.48±2.12 (mmol/L), 12.15±0.96 (mmol/L), 5.65±1.09 (mmol/L), 4.53±0.36 (mmol/L) for Giribaz breed and 95.18±6.71 (mmol/L), 11.99±0.91 (mmol/L), 5.09±0.75(mmol/L), 4.81±0.24 (mmol/L) for Ghiachundi breed respectively. A positive correlation has been found between thickness of eggshell and phosphorus while there is a negative correlation with calcium for Gola breed; both have been found insignificant for Giribaz breed and only calcium has been found significant for Ghiachundi breed. A strong correlation between the final body weight of the squab and K for the Gola breed; between the final body weight of the squab and Ca, P, K for Giribaz breed and between the final body weight of the squab and Ca, Na, K have been found. It could be concluded that serum electrolytes having an influential effect on egg characteristics and body weight of corresponding pigeon breed. Asian J. Med. Biol. Res. 2021, 7 (2), 107-112

Nutritional stress and pre-implantation embryonic mortality in Merino sheep, 1965

1970 ◽  
Vol 74 (1) ◽  
pp. 181-186 ◽  
Author(s):  
T. N. Edey
Keyword(s):  
Body Weight ◽  
Environmental Conditions ◽  
Light Condition ◽  
Nutritional Stress ◽  
Fertilization Rate ◽  
Embryonic Mortality ◽  
Significant Treatment ◽  
Merino Sheep ◽  
Condition Score ◽  
Significant Regression

SUMMARYOf 120 mature Merino ewes, balanced groups received the following treatments from days 8 to 15 after fertile mating: 1, submaintenance nutrition plus 10 mg/day progesterone; 2, submaintenance without progesterone; 3, maintenance nutrition plus progesterone as above; 4, maintenance nutrition without progesterone.The ewes were in light condition, they lost some weight before mating, they had an ovulation rate of 108·3% and they barely maintained their mating weight during the first 3 months of pregnancy. The percentages of ova shed not represented by lambs at term were 60·6, 58·1, 48·5 and 62·5 for groups 1–4 respectively. There were no significant treatment differences or interactions.The high overall loss of ova could have been due in part to depressed fertilization rate: however, the general environmental conditions and low body weight of the ewes seems likely to have made an important contribution to the high basal loss. There was a significant regression of prenatal mortality on body weight at mating, but no detectable relationship between prenatal mortality and condition score.Sixteen oestrous cycles of over 21 days were distributed through all groups, indicating that considerable mortality occurred after day 13.

Influence of Environmental-Conditions on Flight Duration of Epiphyas-Postvittana (Walker) (Lepidoptera, Tortricidae)

1992 ◽  
Vol 40 (5) ◽  
pp. 477 ◽  
Author(s):  
W Danthanarayana ◽  
H Gu
Keyword(s):  
Body Weight ◽  
Relative Humidity ◽  
Air Temperature ◽  
Environmental Conditions ◽  
Epiphyas Postvittana ◽  
Atmospheric Humidity ◽  
Flight Duration ◽  
Reduced Body ◽  
Light Brown Apple Moth ◽  
Honey Solution

Flight responses of the light brown apple moth, Epiphyas postvittana (Walker), to changes in air temperature, atmospheric humidity, feeding and mating activities were studied under controlled conditions. Flights occurred within the air temperature range from 10 to 30-degrees-C, with the longest flight duration at 20-degrees-C for both sexes. A change of atmospheric humidity significantly influenced flight duration of females, but not of males, at 20-degrees-C. The longest flight duration of the female moths occurred at a relative humidity of 60%. Provision of honey solution or water improved flight duration of the moths aged three days or older. Mating increased flight duration of females from the age of three days onwards, presumably as a result of reduced body weight associated with oviposition.

The effect of 1α-hydroxycholecalciferol on the placental transfer of calcium and phosphate in sheep

1983 ◽  
Vol 49 (3) ◽  
pp. 475-480 ◽  
Author(s):  
D. Durand ◽  
G. D. Braithwaite ◽  
J.-P. Barlet
Keyword(s):  
Body Weight ◽  
Placental Transfer ◽  
Active Process ◽  
Foetal Tissue ◽  
P Concentration ◽  
Maximum Value ◽  
Calcium And Phosphorus

1. The calcium and phosphorus concentrations in foetal tissue or the placental transfer of 45Ca and 32P, or both, were studied in fifty-five control or 1α-hydroxycholecalciferol (1α-(OH)D3)-treated (0·1 μg/kg body-weight per d for 12 d) ewes between 77 and 140 d of gestation.2. Treatment resulted in a significant increase in the concentration of Ca and P in foetal tissues at all stages of gestation except at 140 d when, it is suggested, foetal mineralization may approach a maximum value.3. This increase in Ca and P concentration in foetal tissues was associated with an increased placental transfer of Ca, though at 111 and 120 d gestation this increase was not significant. P transfer, which was only measured at 140 d gestation, was also significantly higher in treated animals.4. The concentrations of Ca and P in both maternal and foetal plasma were increased significantly by the 1α-(OH)D3 treatment.5. Whereas the concentration of Ca in the plasma of foetuses was always greater than in their dams, the concentration of plasma P in treated animals, unlike controls, was lower in foetuses than dams. This suggests that the increased placental transfer of P, unlike that of Ca, may be a passive rather than an active process.

ASSOCIATION OF KARYOTYPE WITH BODY WEIGHT AND RESISTANCE TO DESICCATION IN DROSOPHILA PSEUDOOBSCURA

1971 ◽  
Vol 13 (1) ◽  
pp. 63-69 ◽  
Author(s):  
J. A. Thomson
Keyword(s):  
Body Weight ◽  
Relative Humidity ◽  
Environmental Conditions ◽  
Gene Arrangement ◽  
Drosophila Pseudoobscura ◽  
Relative Resistance ◽  
Body Weights

The effect of karyotype on body weight and resistance to desiccation has been examined for the Standard (ST) and Chiricahua (CH) gene arrangements of Drosophila pseudoobscura obtained from Mather, California. Mean body weights fall in the order ST/CH > CH/CH > ST/ST, and variability of body weight in the order CH/CH > ST/ST > ST/CH in adult flies of both sexes. The relative resistance to desiccation in mass survival tests at 0% relative humidity, without food, is [Formula: see text] in males and [Formula: see text] in females. Karyotype has an effect on survival under desiccation, apart from its effect on body size.The data provide a further example of pronounced heterosis associated with a gene-arrangement polymorphism under extreme environmental conditions.

scholarly journals Some results of winter keeping of paddlefish young-of-the-year (Polyodon spathula (Walbaum, 1792)) in ponds of the Forest-Steppe and Polesye of Ukraine

2020 ◽  
pp. 59-67
Author(s):  
B. Hankevych ◽  
◽  
O. Tretiak ◽  
O. Kolos ◽  
◽  
...  
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
Environmental Conditions ◽  
Body Weight Loss ◽  
Fish Farming ◽  
The Body ◽  
Average Weight ◽  
Forest Steppe ◽  
Study Results ◽  
Young Of The Year

Purpose. Assessing the results of winter keeping of paddlefish young-of-the-year in ponds of the Forest-steppe and Polesye of Ukraine. Methodology. The study was carried out using 0.05-1.0 ha ponds intended for winter keeping of carps. The stocking density of paddlefish young-of-the-year with an average weight of 94.2-147.2 g in wintering ponds was 4.10-16.63 thousand fish/ha. The study of the physicochemical parameters of the aquatic environment was carried out according to the methods generally accepted in hydrochemistry and fish farming. The main piscicultural-biological parameters during the wintering period of fish were assessed using methods commonly used in ichthyology and fish farming according to the level of survival and body weight loss of paddlefish. Findings. The environmental conditions in the ponds during most of the wintering period of fish met the biological requirements of the studied object of cultivation. The water temperature varied within 0.9-6.50C. The dissolved oxygen content in water did not fall below 3.6-3.8 mgO2/dm3 and was mainly at the level of 3.9-7.9 3.9-7.2 mgO2/dm3. Other hydrochemical parameters were within acceptable values ​​for wintering fish in pond conditions. As a result, the survival rate of paddlefish young-of-the-year during the wintering period was 81.5-89.7%. The body weight loss of fish during the winter keeping was on average in the range of 6.41-8.17%. A conclusion was made on the need to conduct additional studies of physiological and biochemical parameters of paddlefish during the wintering period. Originality. New data were obtained on the peculiarities of wintering of paddlefish seeds in ponds of the Forest-steppe and Polesye of Ukraine. Practical value. The study results are part of the database for the development of improved technologies for sturgeon breeding in Ukraine. Key words: paddlefish, fish seeds, pond aquaculture, fish wintering, environmental conditions, piscicultural parameters.

scholarly journals Assessment of the Functional State of the Cardiovascular System in Adolescents Living in the Southern Aral Sea Region

2021 ◽  
Vol 7 (9) ◽  
pp. 331-340
Author(s):  
K. Rozumbetov ◽  
S. Esemuratova ◽  
S. Nisanova ◽  
I. Nazhimov ◽  
A. Esimbetov ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Body Weight ◽  
Body Size ◽  
Cardiovascular System ◽  
Environmental Conditions ◽  
Harmful Effect ◽  
Aral Sea ◽  
Excess Body Weight ◽  
Total Body

According to studies conducted in recent years, there is a harmful effect of harmful chemicals in the environment on the cardiovascular system. The level of blood pressure is a very important hemodynamic indicator, the level of which provides primary information about diseases of the cardiovascular system. In this study, the indicators of total body size, blood pressure and heart rate were measured in adolescents living in unfavorable environmental conditions of the Aral Sea region. In adolescents of both sexes, body weight deficiency occupied a significant share. In girls and boys, the excess body weight was about 5%. Obesity was not observed in adolescents of both sexes. Hypotension was detected in 17.64% of the females studied by categories of systolic blood pressure, and there were no cases of hypertension among the females. And in males, hypotension of 8.70% and hypertension of 4.35% were observed. According to the categories of diastolic blood pressure, hypotension of 2.95% and hypertension of 8.82% were detected in females, hypotension of 8.69% and hypertension of 8.70% in males.

Sign in / Sign up

Export Citation Format

Share Document