scholarly journals The effect of feeding magnesium-enriched diets on the quality of the albumen of stored eggs

1977 ◽  
Vol 37 (1) ◽  
pp. 35-44 ◽  
Author(s):  
J. B. Monsey ◽  
D. S. Robinson ◽  
W. S. Miller ◽  
Margaret Ellis

1. Pullets were given from 1-d-old diets containing 1.6, 4.1, 8.1 and 12.0 g Mg/kg. Only small effects of these diets on live weight, food consumption, egg number, egg weights or egg-shell thickness were observed except at the highest level (12.0 g Mg/kg) which caused diarrhoea and an appreciable lowering of the live weight of growing pullets. A further group was given from point-of-lay a diet containing 9.3 g Mg/kg.2. Eggs laid on 3 consecutive days from each of eighteen hens were collected at intervals of 3 weeks until the birds were 68.5 weeks old. Eggs laid on the 3rd day were used to determine the initial proportion of thick egg-white present and also the concentration of Mg, Ca, Na and K in the thick egg-white. Eggs laid on the 1st and 2nd days were stored at 20° for 20 d to establish the proportion of thick egg-white remaining after storage.3. With the unsupplemented diet the proportion of residual thick egg-white after storage of eggs for 20 d at 20° was 306, 161 and 305 mg/g total egg-white when the hens were 26.5, 53.5 and 68.5 weeks of age respectively. When the diet containing 9.3 g Mg/kg was given, the proportion of thick egg-white after storage remained approximately 400 mg/g throughout the period of the trial.4. The mean Mg concentration in the thick egg-white of eggs laid by hens given unsupplemented diets was 5.77 mm. The addition of extra Mg to the diet increased the content of Mg in the thick egg-white, for example when the diet contained 9.3 g Mg/kg the mean concentration rose to 7.69 mm.

ZOOTEC ◽  
2014 ◽  
Vol 34 (1) ◽  
pp. 103 ◽  
Author(s):  
Claudia Rondonuwu ◽  
J L.P Saerang ◽  
F J Nangoy ◽  
S Laatung

ABSTRACTADDITION TURMERIC GINGER, RHIZOME AND WHITE RHIZOME OF COMMERCIAL RATION TO EGGS’ QUALITY OF QUAILS.This study aims to determine the quality of quail eggs after added 2% turmeric (Curcuma domestica Val.), ginger (Curcuma xanthorrhiza Roxb.), and ginger and white (Curcuma zedoaria Rosc.) in the commercial ration. Animals used are of the type Coturnix-coturnix japonica quail females aged 6 weeks a total of 120 birds. Research using completely randomized design (CRD) with 4 treatments and 5 replications, and each replication consisted of 6 tail quail. Treatment is given as follows: R0 = control diet; R1= ration with 2% turmeric (Curcuma domestica Val.), R2 = 2% ration with ginger (Curcuma xanthorrhiza Roxb.), R3 = 2% ration with ginger and white (Curcuma zedoaria Rosc.). results of the study showed that the addition of 2% turmeric (Curcuma domestica Val.), ginger (Curcuma xanthorrhiza Roxb.), ginger and white (Curcuma zedoaria Rosc.) and not significantly different effect on egg weight, yolk color and egg shell thickness. And based on the results of this study concluded that the addition of 2% turmeric, ginger, ginger and white and can not increase egg weight, yolkcolor and egg shell thickness when added to a commercial ration.Keyword : Ration, Turmeric, Ginger, Ginger and White, Quail Eggs.


1996 ◽  
Vol 62 (3) ◽  
pp. 513-520 ◽  
Author(s):  
S. M. Rhind ◽  
S. R. McMillen

AbstractThe effect of long-term treatment of goats with methylthiouracil on the timing, amount and quality of secondary fibre (cashmere) growth and timing of cashmere moult in goats was investigated. From early June, groups of 10 Icelandic × Scottish feral goats were dosed orally each day, for a 15-month period, with 5 mg methylthiouracil per kg live weight in 30 ml water (treated; T) or with water only (control; C). Treatment with methylthiouracil resulted in a significant reduction (P < 0·05) in the proportion of active secondary hair follicles present during March. This was associated with a delayed onset of moult of cashmere in T compared with C goats at both the head (11 March v. 23 February; s.e. 3·33 days; P< 0·05) and mid side (27 March v. 26 February; s.e. 3·58 days; P < 0·001). There was no effect on the time of onset (C, 19 July; T, 19 July; s.e. 5·84 days) or cessation of cashmere fibre growth (C, 9 December; T, 8 December; s.e. 1·69 days) or the mean growth rate (C, 0·473 mm/day; T, 0·451 mm/day; s.e. 0·025) and fibre diameter (C, 16·9 μm; T, 15·4 jim; s.e. 0·266). Wlien present in the fleece, the mean weight and proportion of cashmere was higher in C than in T goats (P < 0·05). It is concluded that methylthiouracil treatment altered secondary follicle activity and the time of onset of the moult of cashmere and that these changes may be a result of reduced triiodothyronine production from thyroxine and associated secondary changes in profiles of insulin and IGF-1.


2016 ◽  
Vol 4 (1) ◽  
pp. 130-132
Author(s):  
Binoy S Vettical

The objective of the study was to evaluate the quality of semen retrieved from cauda epididymis of crossbred bulls in the tropics.  Testes from one hundred and twenty six recently slaughtered cross bred bulls in the tropics were used for the analyais. The total and progressive motility percentage obtained for epididymal semen were 49.17±9.26 per cent and 27.5±9.11 per cent respectively.  The mean concentration obtained for epididymal semen was 37,175x106 ±7612x106 per ml.  The mean percentage of live and dead sperms was 84.5±8.02 per cent and 15.5±8.02 per cent respectively.  The mean percentage of normal spermatozoa, spermatozoa with abnormal heads, abnormal tails, spermatozoa with a proximal protoplasmic droplet and distal protoplasmic droplet were 35.67±2.30, 3.17±1.58, 2.33±0.61, 11.67±4.01 and 47.17±3.17 per cent respectively. Int J Appl Sci Biotechnol, Vol 4(1): 130-132


2017 ◽  
Vol 9 (2) ◽  
pp. 21-25
Author(s):  
N Sultana ◽  
H Muktadir ◽  
MAH Chowdhury ◽  
MA Baten

This study was conducted to assess the quality of different industrial wastewater. Some physicochemical parameters viz., pH, EC, TDS, Na+, K+, Ca++, Mg++, CO32-, HCO3-, Cl-, SO42-, PO43- including heavy metal contents like Pb, Cd, Ni, Cr, As, Zn and Cu concentration from collected wastewater samples were analyzed. Atomic Absorption Spectrophotometer was used for analyzing the heavy metals in the wastewater samples. The results revealed that, the values of pH, EC, TDS ranged between 6.44-9.0, 471-4307 ?S cm-1, 1952-5209 mg L-1, respectively. The higher mean concentrations of Na+, K+, Ca++, Mg++, CO3-, HCO3-, Cl-, SO42-, PO43- were 1407.8, 27.9, 69.9, 76.6, 2.7, 11.7, 1688, 76.6, 6.1 mg L-1, respectively. The mean concentration of Cd, Ni, Cr, Zn, and Cu was 0.17, 0.87, 85.73, 0.80, and 1.56 mg L-1, respectively. Among trace elements Ni and Cd, Zn and Cd, Zn and Cr showed a positive relationship. To avoid the harmful effects of wastewater on environment it is imperative to treat industrial effluents before discharge into open environment.J. Environ. Sci. & Natural Resources, 9(2): 21-25 2016


2021 ◽  
Vol 24 (1) ◽  
Author(s):  
F. A. S. Dairo

Sixty-four Black Harco breed of laying hens, 39 weeks in lay were fed water hyacinth Eichhorria crassipes at dietary levels of 0, 5, 10, and 15% for 56 days. The experiment had eight birds in each of the 2 replicates per treatment with the E. crassipes levels of inclusion as treatment. Parameter study include body weight change, feed intake, egg weight, egg yolk coloration, egg shell thickness and feed conversion ratio (feed/kg egg). The mean feed intake significantly decreased (P<0.05) among the mean values of 126.98, 127.27, 127.27 and 122.59 g/day for 0, 5, 10 and 15% inclusion levels respectively. the egg shell thickness increased significantly (P<0.05) among the mean values obtained i.e from 0.51-0.67 mm. however, egg weight changes, egg yolk coloration and feed conversion ration did not show any significant difference (P>0.05) among the respective means. E. crassipes appears to be optimally utilized at 5% dietary level  in layers ration and could be used as pigmenter for egg yolk coloration at this level.


1999 ◽  
Vol 68 (3) ◽  
pp. 365-377 ◽  
Author(s):  
Y. Le Cozier ◽  
E. Ringmar-Cederberg ◽  
L. Rydhmer ◽  
N. Lundeheim ◽  
J. Y. Dourmad ◽  
...  

AbstractA 2 x 2 factorial experiment was designed in order to study the effects of feeding level during rearing and of mating policy on the reproductive performance and food intake of first- and second-litter sows. Gilts were offered food during rearing eitherad libitum(AL) or at 0·8 of the AL level (R) and served either at first (E1) or third (E3) detected oestrus. A total of 160 out of the 243 animals that started the experiment were culled by the end of the second lactation, with significantly more R than AL animals (71 and 60%, respectively). During the first pregnancy, the R sows gained more live weight (LW) and backfat thickness (BF) than their AL contemporaries (+5 kg and +1.2 mm, respectively) and lost less BF during the first lactation (1.2 mm less). At weaning, no difference remained in LW or BF between AL and R sows (174 kg LW on average). The E3 females gained less LW during both pregnancies compared with those on the E1 treatment, but they remained heavier until the second weaning (208 kg, on average). During the first lactation, R consumed more food during the weeks 2 and 3 (by 0·5 kg/day, on average) than those reared previously on the AL regime, and no difference was observed between E3 and E1 females. No difference in food consumption was noted during parity two. However, when measured over the first two parities, lean animals consumed more food than fat animals. The size and the weight of the litter at birth or at weaning were not influenced by the treatment prior to service. The weaning-to-oestrus interval was longer during parity one than during parity two (5·7 and 5·0 days, respectively;P< 0·01) but it was not affected by feeding or mating treatment.


1970 ◽  
Vol 75 (2) ◽  
pp. 327-335 ◽  
Author(s):  
T. A. McCullough

SUMMARYConcentrate diets supplemented with 5, 20 and 40% of a high- and a low-quality hay were given ad libitum to British Friesian steers from 9 weeks of age to slaughter. The intake of dry matter and metabolizable energy was studied over weight ranges from 91 to 363 kg live weight. The quality of hay did not significantly affect the drymatter intake at any of the weight ranges studied. From 91 to 182 kg live weight the daily dry-matter intake decreased as the proportion of hay in the diet increased. Over the weight range from 182 to 272 kg live weight, intake was maximum at the 20% level of hay supplementation, while from 272 to 363 kg live weight, intake increased with increasing levels of hay in the diet. The supplementation of high-quality hay significantly increased the intake of metabolizable energy by animals weighing 91–182 kg. Increasing proportions of hay in the diet significantly affected the metabolizable energy intake at all stages of growth studied.At 18 and 36 weeks of age digestibility and N balance studies were carried out. The metabolizable energy expressed as a percentage of the gross energy and the mean retention time of the diets were significantly affected by the age of animal, quality of the hay and the level of hay supplementation. Nitrogen retention was also affected by the age of the animal but not by the quality of the hay.The relationships between the voluntary intake of dry matter and the metabolizable energy of the diet expressed as a percentage of the gross energy, for different stages of growth, are also presented.The change in the digestibility and the mean time of retention of the diets in the digestive tract with age and the effect of this on the point where physical regulation to intake gives way to physiological regulation are discussed.


2021 ◽  
Vol 923 (1) ◽  
pp. 012041
Author(s):  
Hayder Mahdi Hamzah ◽  
Abbas Salim Hussein Al-Mnachi

Abstract A total of 84 laying hens, ISA Brown, 60 weeks age, were used, randomly distributed into four treatment groups with 3 replicates for each treatment. The treatments were distributed as follows: T1: added the premix to diet supplied by Nuscience Company. T2: added the premix to diet supplied by Provimi Company. T3: added the premix to diet supplied by Max Care Company. T4: added the premix to diet supplied by INTRACO Company. The results show that there were no significant differences in the relative weight of the shell, except for the mean, a significant superiority of T2 and T4 compared T3, a significant differences in the shell thickness. There were no significant differences in the relative weight of albumin, and a significant superiority in the general average, where T2 outperformed on T4. There were no significant differences in the yolk index. T3 and T2 were significantly superior to T1.


1977 ◽  
Vol 25 (3) ◽  
pp. 393-396 ◽  
Author(s):  
A. Nik-Khah ◽  
R. Assadi-Moghaddam

SUMMARYThe effects of three diets on the performance and carcass quality of lambs of the Makui and Moghani breeds of sheep were studied. Thirty-two Makui and 33 Moghani lambs, 6 to 7 mo of age, were kept on feedlots and given three diets for 77 days. The diets each contained a barley, alfalfa meal and corn silage base plus different levels of urea, molasses and dried beet pulp.The average daily live-weight gains (ADG) of lambs fed on diets I (no urea), II (0·8% urea) and III (1·4% urea) were 218, 208 and 204 g respectively, while feed conversion ratios (FCR) were 6·3, 6·6 and 6·8 respectively. The overall ADG for Makui and Moghani lambs were 213·6 and 206·6 g respectively and the FCR were 6·4 and 6·9 respectively. None of these differences was statistically significant. The mean dressing percentages of lambs fed on diets I, II and III were 52·5, 52·7 and 53·9 respectively, and those of Makui (53·1) and Moghani lambs (53·3) were similar. There were only minor differences between the carcass characteristics of the two breeds and these were not influenced by the different diets.


2016 ◽  
Vol 50 ◽  
pp. 53-61 ◽  
Author(s):  
Francis Chizoruo Ibe ◽  
Bridget Onyekachi Ibe

Samples collected from different runoffs; AR, GMR, TR, ASR, and DR for aluminum roof, galvanized metal roof, thatch roof, asbestos roof and ambient rainfall respectively were analyzed for pH, conductivity, turbidity, TDS, TSS, NO3-, PO43-, Cd, Cu, Fe, Zn and Pb. The result indicates that the mean concentration of the parameters analyzed ranged from 5.8± 0.39 –7.10±0.70, 22.25±11.70-79.99± 3.40μScm-1, 1.47±0.43 - 46.53±1.60mg/l, 11.90±0.93 - 59.83±1.62NTU,15.53±0.70 - 204.53±5.08mg/l, 0.93±0.06 - 2.55±0.13 mg/l, 1.33±0.22 - 7.30±0.57mg/l respectively for pH, conductivity, TDS, turbidity, TSS, PO43-and NO3-, and the levels of the heavy metals (in mg/l); Cd, Cu, Fe, Zn and Pb ranged from 0.0023±0.001– 0.0521±0.004, 0.052±0.01–0.2483±0.02, 0.0348±0.01–1.1120±0.07, 0.0161±0.01-0.8093±0.02 and 0.0106±0.01-0.0499±0.002 respectively. Ranking of the heavy metal in roof runoff is in the order; Fe>Zn>Cu>Cd>Pb. The result compared with WHO standard showed elevated level of the parameters analyzed with Cd and Pb exceeding the limit. Though the result of this study showed some variability which is an indication of the type of roofing material; air quality of the environment and industrial activity going on in the area. It could be deduced from the result that roof runoff may be a non point source of environmental pollution owning to the release of heavy metals and other pollutants into the environment, and increased concentration of some of the pollutants as reported by this study suggests that roof runoff water could impact negatively to the environment and if consumed without being treated may be injurious to human health.


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