Effect Of Different Dietary Lysine Levels And Feed Restriction Regimes On Growth Performance And Slaughtering Characteristics In Japanese Quail (Coturnix Coturnix Japonica) Maintained During Hot Season (Record no. 6500)
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|005 - DATE AND TIME OF LATEST TRANSACTION|
|008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION|
|fixed length control field||151109b2015 xxu||||| |||| 00| 0 eng d|
|041 ## - LANGUAGE CODE|
|Language code of text/sound track or separate title||eng|
|082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER|
|100 ## - MAIN ENTRY--AUTHOR NAME|
|Personal name||Yassar Abbas (2008-VA-753)|
|110 ## - MAIN ENTRY--CORPORATE NAME|
|Location of meeting||Dr. Abdul Waheed Sahota|
|245 ## - TITLE STATEMENT|
|Title||Effect Of Different Dietary Lysine Levels And Feed Restriction Regimes On Growth Performance And Slaughtering Characteristics In Japanese Quail (Coturnix Coturnix Japonica) Maintained During Hot Season|
|260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)|
|Year of publication||2015|
|300 ## - PHYSICAL DESCRIPTION|
|Number of Pages||970p.;|
|502 ## - DISSERTATION NOTE|
|Dissertation note||High prices, global shortage of feed ingredients and less supply of animal protein against great demand as consequence of ever increasing human population needs to enhance protein supply. One way of enhancing protein supply is to expand poultry production along with increasing production of other micro livestock such as Japanese quail (Coturnix coturnix japonica) having low maintenance cost, short generation intervals, early sexual maturity and better resistance to diseases and its meat being rich in high quality protein having high biological value with low caloric content. Profit can be optimized by minimizing feed cost that accounts for 60-70 % of the total production cost and any improvements in the performance of birds by manipulation of feeding strategies inevitably have a profound effect on profitability. Any effort to improve commercial poultry production and enhance its efficiency needs to emphasize on better utilization of existing resources. Among different feeding management schemes and strategies phase feeding may be employed with the logic seems to feed birds for shorter periods of time to exactly meet but not exceed the amino acids requirements hence improvement in carcass characteristics and reduction of dietary cost. Commercial availability of very vital limiting amino acids (lysine) has set a new tendency of formulation of poultry feeds having low protein level with addition of amino acids. Lysine, being utmost essential amino acid is used as a reference for other essential amino acids. Feed restriction program may be another managemental tool that may elicit compensatory growth, improved feed efficiency, carcass quality and birds are not exposed to sub optimal level of nutrients but the efficiency of utilization of these nutrients may be improved. On the other hand breed, strain, management and sex differences for carcass traits have also been reported. Very little research focus on the subject has necessitated conducting the
present study undertaken in Japanese quails on the similar pattern as adopted in broiler industry to make quail production more cost-effective and commercially viable at Avian Research and Training (ART) Centre, University of Veterinary and Animal Sciences, Lahore, Pakistan. A series of experiments at Avian Research and Training (ART) Centre, University of Veterinary and Animal Sciences, Lahore, Pakistan was run to assess the effect of different management interventions on growth performance, carcass characteristics and blood biochemical profile in Japanese quail.
The first experiment was aimed to examine the growth performance and economic efficiency involving 1440 day-old Japanese quail (Coturnix coturnix japonica) chicks. Three dietary lysine levels (1.3, 1.4-1.2 & 1.5-1.3-1.1 %) in 3 different phases were allocated to four different close-bred stocks (Imported, Local-1, Local-2 and Local-3) of Japanese quails to assess their comparative growth performance by replicating each treatment for three times. The experimental day-old quail chicks were randomly divided into 36 experimental units of 40 chicks each. Quails under 1st treatment were fed a diet with 1.3 percent lysine throughout the grow-out period of 28 days, while, those under 2nd treatment were allotted diet with 1.4 percent lysine up to14 days of age and then subsequently reduced to 1.2 percent lysine up to 28 days. The 3rd treatment was split into 03 different phases. The first phase was up to 9th, 2nd up to 19th and 3rd up to 28th day by allotting diet containing 1.5, 1.3 and 1.1 % lysine, respectively. Weekly data on growth performance were recorded and analyzed through ANOVA technique in CRD under factorial arrangement and the comparison of means was worked out using DMR test by the help of SAS 9.1. Maximum (P≤0.05) feed intake; body weight gain and improved FCR were observed in three phase dietary lysine regimen leading to maximum profit margins.
In the 2nd experiment same experimental design and phase feeding was practiced to observe organ development. Sexing with in treatment was done at the age of three weeks and quails were maintained separately for one week. At 4 week of age, 3 birds/ replicate from either sex were slaughtered through Halal Muslim method for studying carcass characteristics. Two birds per replicate from either sex were used for serum analysis of glucose, cholesterol, urea, albumen and total protein using standard procedures. The analysis showed three phase dietary lysine regimen than other dietary lysine regimens improved (P≤0.05) slaughter characteristics i.e. post slaughter weight (g), dressing percentage with and without giblets, breast yield (g), thigh yield (g), giblet weight (g), liver weight (g), keel length (cm), shank length (cm), weight of visceral organs including intestinal weight (g) and intestinal length (cm). However, heart weight (g), gizzard (empty) weight (g), serum glucose, cholesterol, urea, albumin and total protein were not significantly affected by dietary lysine regimen. While, different close bred stocks did not show any significant differences.
Third experiment was executed to examine the growth performance and economic efficiency of Japanese quail (Coturnix coturnix japonica) subjected to different feed restriction regimes at ART Centre, UVAS, Lahore. For this purpose a total of 3200 quail chicks from four different close-bred stocks were allocated to four different feed restriction regimes comprising four close-bred stocks (Imported, Local-1, Local -2 and Local-3) at the age of 10 days. The experimental quails in group 1 were fed ad-libitum (20.30% CP, 1.3% Lysine, as recommended by NRC) throughout the experimental period to serve as control while groups 2, 3 and 4 were provided with 1 hour feed- 3-hour off, 2-hour feed- 2hour off and 3-hour feed-1hour off feeding regimes, respectively. The analysis of data showed that the maximum feed intake was observed in ad-libitum fed group whereas the highest body weight gain was observed in ad-libitum and 3 hour
fed quails. The best FCR leading to maximum profit margin was observed in 3 hour-fed group. Different close-bred stocks could not express any significant difference in growth parameters.
In the 4th experiment same dietary plan of time restriction as in 3rd experiment was adopted to observe organ development. At the termination of the experiment (at the age of 38 days), 6 birds (3 male and 3 female) from each replicate were randomly picked up and slaughtered (by Halal method) to study different slaughter parameters. Significantly higher (P≤0.05) carcass weight, mean dressing % with and without giblet, mean thigh weight was observed in ad-libitum and 3 hours fed quails while significantly lower mean dressing %, liver weight, gizzard weight, giblet weight, breast weight and mean intestinal length and weight in one hour fed quail.
Blood profile showed significantly higher (P≤0.05) serum glucose, urea, albumin and total protein level in ad-libitum and 3-hours fed quails while significantly higher (P≤0.05) serum cholesterol level was observed in one hour fed quails. Heart weights (g), keel length (cm), shank length (cm) were not affected significantly among different treatments and close-bred stocks.
Based upon the findings of the present study it may be stated that
1. Maximum (P≤0.05) feed intake; body weight gain and improved FCR were observed in three phase dietary lysine regimen leading to maximum profit margins.
2. Significant improvement in carcass characteristics was recorded in three phase dietary lysine regimen.
3. The best FCR leading to maximum profit margin was observed in 3 hour-fed group in Japanese quails when subjected to different feed restriction regimens.
4. Three hour fed quails showed superior carcass characteristics at par with ad-libitum fed groups especially in terms of carcass weight, dressing percentage and thigh weight.
5. Significantly higher (P≤0.05) serum glucose, urea, albumin and total protein level were recorded in ad-libitum and 3-hours fed quails while significantly higher (P≤0.05) serum cholesterol level was observed in one hour fed quails.
Suggestions and Recommendations
Four lysine dietary regimens having 1 week each may successfully be employed in Japanese quails in order to get maximum profit. It may further be recommended that Japanese quails may be subjected to feed restriction of 1-hour after 2nd week.
The present series of experimentation is a step towards optimizing the nutritional and managemental strategies in Japanese quails, however, a lot more is still needed to be worked out in this direction.
|650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM|
|Topical Term||Department of Poultry Production|
|650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM|
|Topical Term||Phd. thesis|
|700 ## - ADDED ENTRY--PERSONAL NAME|
|Personal name||Prof. Dr. Muhammad Arkam|
|700 ## - ADDED ENTRY--PERSONAL NAME|
|Personal name||Prof. Dr. Khalid Javed|
|942 ## - ADDED ENTRY ELEMENTS (KOHA)|
|Koha item type||Thesis|
|Damaged status||Collection code||Permanent Location||Current Location||Shelving location||Date acquired||Full call number||Accession Number||Koha item type|
|Veterinary Science||UVAS Library||UVAS Library||Thesis Section||2015-11-09||2340-T||2340-T||Thesis|