scholarly journals Effects of varying dietary protein levels on the performance of laying Japanese quail(Coturnix coturnix japonica) in a semi-arid environment

2021 ◽  
Vol 33 (1) ◽  
pp. 45-52
Author(s):  
S. Babangida ◽  
C. O. Ubosi

 Four dietary treatments differing in protein levels were compared to ascertain the protein requirement of laying Japanese quail in a semi-arid environment. One hundred and twenty quails were randomly assigned to four treatments (TI — 22%CR T2 — 20%CP T3 — 18%CP and T4 - I6%CP) in a completely randomized block design Each treatment was replicated thrice with ten quails each. Feed intake, body weight gain, hen day egg production, feed conversion ratio FCR), egg quality and hematological constituents were the response criteria. The study lasted seven weeks. Feed and water were provided ad libitum throughout the experimental period No significant (P> 0.05) effect of dietary protein was observed for feed intake, average body weight gain, hen-day egg production, F CR, dressing percentage and hematological parameters. Average body weight was significantly (P<0,05) enhanced by high dietary protein. Egg weight and Haugh unit were significantly (P<0. 05) better for the groups fed the higher protein levels (20 and 22% CP). Hen-day egg production, albumen index, specific gravity, shell weight and percent shell were not affected (P>0.05) by dietary protein levels. The costs of producing l kg egg in the treatment groups were ₦25926, ₦21007, ₦252.44 and ₦1263./10 for T1, T2, T3 and T4, respectively. It was concluded that about 20%CP is required in the diets of laying Japanese quail under a semi-arid environment of Nigeria.

2012 ◽  
Vol 2 (1) ◽  
pp. 21-27
Author(s):  
Yosi Fenita

The objective of the research was to evaluate to effect of feeding mengkudu on performances of broilers. The research design used was completely randomized design. One hundred broilers were distributed into five treatments. The treatments were different levels of mengkudu meal (0, 0.75%, 1.5%, 2.25 % and 3%). The observed measured were feed consumption, average body weight (gain) and feed conversion. Results showed that feeding mengkudu (Morinda Citrifolia L.)  no effect significant (P>0.05) on feed consumption, average body weight and feed conversion.  In conclusion, feeding mengkudu meal up to 3% (in diet) does not negatively affect feed consumption, average body weight, and feed conversion.


Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1511
Author(s):  
Joseph P. Gulizia ◽  
Kevin M. Downs

Two trials were conducted to determine feed color effects on broiler performance. A completely randomized design was used. Trial 1 included four treatments: control (complete broiler starter diet), red, green, and blue; and Trial 2 included four treatments: control, orange, yellow, and purple. Each trial had 4 treatments with 4 replicates (60 birds/treatment) fed to 240 male Cobb 500 broilers during a 21 d grow out. Data were analyzed using the GLM procedure. In Trial 1, there were no treatment effects on average body weight, body weight gain, and feed consumption (p > 0.05). Adjusted feed conversion for control (1.23) was less than red (1.27; p = 0.001) and green (1.26; p = 0.009), with blue (1.25; p = 0.056) tending to be different during the experimental period. In Trial 2, there were no treatment effects on average body weight, feed consumption, and adjusted feed conversion during this study (p > 0.05). Body weight gain between d 1 to 14 for purple (490.78 g/bird) was more than orange (467 g/bird; p = 0.013) and yellow (461 g/bird; p= 0.004), with control (474 g/bird; p = 0.052) tending to be different. Results indicate that these feed colors had some, albeit limited, influence on broiler performance parameters.


2018 ◽  
Vol 156 (1) ◽  
pp. 118-126 ◽  
Author(s):  
G. S. Farahat ◽  
B. Y. Mahmoud ◽  
E. M. El-Komy ◽  
E. A. El-Full

AbstractThe present investigation was carried out to estimate the effects of genotype and sex on growth and laying performance and assess the variations in plasma constituents in the tested genotypes and their relations with productive traits after four generations of selection. Data of growth and laying performance on 1440 females and males of Japanese quail were taken from the three quail genotypes: maternal (MG), long shank length (LSG28) and control (CG) genotypes. Genotype significantly affected all studied growth productive traits, favouring selected genotypes. The LSG28surpassed MG in total protein, albumin (Alb), globulin (Glob), triglycerides and Alb/Glob ratio and lowered both cholesterol and total lipids (TL). Sex significantly favoured females, which had higher body weight, longer shank length at 35 days of age and higher body weight gain during the period from 1 to 35 days of age. Females showed significantly higher concentrations of both Alb and TL than males. The MG exceeded LSG28in fertility and hatchability per cent. Correlations for both growth and productive traits with plasma constituents revealed inconsistent trends in either magnitude or direction. Four generations of selection resulted in substantial phenotypic improvements in most growth and productive traits, as well as plasma constituents studied in LSG28, and favoured MG in maturity, days needed to produce the first ten eggs, higher egg production per cent and heavier egg mass.


2020 ◽  
Vol 5 (2) ◽  
pp. 60-64
Author(s):  
Rezaul Mahmud Nahid ◽  
Md Anwar Hossain ◽  
Mst Latifa Yesmin Camy ◽  
Md Rakibul Hasan ◽  
Shuvendu Sarkar ◽  
...  

Dairy calves must be fed appropriately to meet their nutritional needs, supporting optimal growth and development to achieve the recommended target age at first calving (AFC) of 24 months. Traditional restricted milk feeding practices suppress growth, contribute to negative welfare states and may result in malnutrition and immunosuppression. In this study a total of eight high yielding calves (four Holstein Friesian and four Sahiwal breed) whose average body weight was 44.8 kg and 58 kg respectively. The supplied calf starter was composed of maize crushed, rice polish, wheat bran, gram broken, mustard oil cake, vitamin mineral premix, molasses and common salt. Calf starter was supplied initially 0.25 kg/day/calf in equal halves to the experimental calves twice a day i.e. at 7.00 AM and 12.30 PM and gradually increase upto 1 kg/d/calf. Average body weight gain, wither height gain, body length gain, barrel height gain, and hip height gain in Sahiwal and Holstein Friesian calves were 65.97±1.04 Kg, 31.04±1.13 inch, 32.34±1.46 inch, 12.80±0.71 inch, 35.05±1.27 inch, and 53.61±2.41 Kg, 29.78±1.17 inch, 30.93±1.66 inch 11.78±0.66 inch, 33.44±1.41 inch respectively. Our study concluded to establish a consensus on calf feeding standards which support physiological function, facilitate weaning, support growth targets and ensure calf health and welfare is protected. Asian Australas. J. Biosci. Biotechnol. 2020, 5 (2), 60-64


2018 ◽  
Vol 22 (1) ◽  
pp. 1 ◽  
Author(s):  
Maijon Purba ◽  
Arnold P. Sinurat

Determining the optimum level of lysine in the ration will be a significant effort to avoid poor growth in duck husbandry. The purpose of this study was to determine the optimum dietary lysine requirement for EPMp broiler ducks, raised up to 10 weeks of age. The study was designed in a completely randomized design (CRD) with 4 dietary treatments, and 4 replicates. Each replicate consisted of 10 ducks. The 4 treatments were diets, containing lysine: 0.60% (T1); 0.70% (T2); 0.80% (T3) and 0.90% (T4). Variables measured included: feed consumption, body weight gain, feed conversion ratio (FCR), carcass and carcass cuts percentages. The results showed that the performance of 10 weeks of age EPMp broiler duck was significantly affected by the level of dietary lysine (P&lt;0.05). The average body weight gain and the FCR of the duck were significantly affected (P&lt;0.05) by dietary lysine level, but not for feed consumption and percentage of carcass (P&gt;0.05). The average body weight gain of EPMp duck with T4 treatment (0.90% lysine) was significantly higher than that T1 (0.60% lysine) but did not significantly difference (P&gt;0.05) with T2 and T3. The average FCR of EPMp duck under T3 and T4 were significantly (P&lt;0.05) higher than that of EPMp duck under T1. It was concluded that the optimum dietary lysine to produce maximum body weight gain of EPMp duck raised up to 10 weeks of age was 0.70%, while for minimum FCR were at the level of 0.80% and 0.90%.


1994 ◽  
Vol 74 (2) ◽  
pp. 341-346 ◽  
Author(s):  
R. M.G. Hamilton

Two experiments examined the effect on the performance of Leghorn hens given diets containing flame-roasted grains from 140 to 490 d of age. In exp. 1, the inclusion of barley, corn and wheat roasted at 121, 119 and 149 °C, respectively, had no significant (P > 0.05) effect on productive performance. Experiment 2 contained a factorial arrangement of treatments that involved two sources of dietary barley (non-roasted or flame-roasted at 154 °C), two methods of milling (hammer or roller) and two dietary protein levels (15 or 18%). Hens given the diets that contained roasted barley had lower (P < 0.01–0.001) 490-d body weights, egg production, early egg weight (196 d) and number of extra large sized eggs, and higher (P < 0.05–0.01) feed conversion, monetary returns, interior egg quality and number of medium sized and grades B and C eggs than those fed the non-roasted barley control diet. Mortality, the number of large-sized eggs and egg weights, feed conversion and the occurrence of blood spots were higher (P < 0.05–0.001) while the number of medium-sized eggs was lower (P < 0.05–0.001) when the hens were fed roller compared with hammer-milled grains. Hens given the 18% protein-containing diets had higher (P < 0.05–0.01) 490 d body weight, egg production, monetary returns and numbers of small sized and grades B and C eggs, but lower (P < 0.05) mortality than those receiving the diets that contained 15% protein. Key words: Flame roasting, dietary grains, Leghorn hens


Author(s):  
Moataz M. Fathi ◽  
Ibrahim Al-Homidan ◽  
Tarek A. Ebeid ◽  
Ahmed Galal ◽  
Osama K. Abou-Emera

Three hundred ten 12-wek-old laying quails (155 each) were randomly selected from the initial population and kept in individual battery cages. The measurements of growth and egg production were determined to derive RFI. The relationship between RFI and egg quality, blood parameters and carcass characteristics was also determined. The results indicated that the gray quails had significantly higher egg mass and lower broken eggs compared to the white quails. A significant increase for eggshell strength and shell % was found in eggs produced from gray quails compared to white counterparts, although the shell thickness was the same. The results of multiple regression analysis clearly identified a significant effect of metabolic body weight and egg mass in computing expected feed intake rather than body weight gain in both varieties of Japanese quails. Strongly positive correlation between RFI and feed intake in both gray and white quail varieties was found. The same trend was also observed for feed conversion ratio (FCR). Therefore, including RFI in selection criteria of Japanese quail to improve FCR under high environmental temperature is highly recommended.


2020 ◽  
Vol 44 (1) ◽  
pp. 30-38
Author(s):  
A. O. Raji ◽  
S. T. Mbap

Production and management of Japanese quail is relatively new in Nigeria but the birds have been attracting national attention in the recent times. This study on Japanese quail was conducted to estimate genetic parameters of egg production traits of Japanese quails in a semi-arid area of Nigeria. In a study that lasted for 40 weeks, 40 sires and 120 dams that produced 1267 progenies (743 females and 524) in three batches were used. The mixed model least squares and maximum likelihood programme of Harvey was used to estimate heritability, genetic, phenotypic and environmental correlations for body weights of Japanese quails from 0 – 40 weeks of age. Heritability estimates from sire, dam and, sire plus dam variance components from 0 to 36 weeks were low to moderate ranging from 0.071 to 0.569. Genetic correlations between body weights at the different ages were positive but varied widely from low (0.02) to high (0.977). However, the genetic relationships between body weights from hatch to 8 weeks were high (0.921 to 0.992). This may suggest that selection for final body weight may be based on early weight records. The phenotypic and environmental correlations were generally high, positive and ranged from 0.572 to 0.995 and 0.776 to 0.999, respectively. Though, the magnitude of genetic and phenotypic correlations of body weights decreased with increase in age of Japanese quails. Thus, rapid progress in selection for improvement of body weight of the Japanese quail may be


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