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Determination Of Metabolizable Energy And Dry Matter Digestibility Of Indigenous Feed Staffs Used In Poultry Rations

by Rana Mudassar Riaz | Prof.Dr.Talat Naseer Pasha | Dr. Farina M | Mr. Muhammad Kamran.

Material type: book Book; Format: print Publisher: 2005Dissertation note: The project was conducted to determine the AME, TME and dry matter digestibility. Five feedstuffs were used for this purpose. Thirty 16- week-old cockerels were used in such a way that five birds were force fed 30g of each feedstuff. Five birds were kept fasted to serve as negative control for determination of metabolic feacal and urinary endogenous excretions. The prefeeding fasting period was 21 hr and excreta were collected over a period of 24 hr. Proximate analysis for moisture, crude protein, ash, crude fibre and nitrogen free extract was carried out. The gross energy of the ingredients and the excreta was measured by using adiabatic bomb calorimeter and AME and TME were worked out. The observed AME values for maize, rice tips, wheat, sorghum and millet were 3612.74, 3661.62, 3296.85, 3514.92 and 3278.46 Kcal/kg respectively. Rice tips have the highest value and on the other hand millet has the lowest value. The observed TME values for maize, rice tips, wheat, sorghum and millet were 4059.6, 4095.36, 3738.58, 3965.71 and 3730.62 Kcal/kg respectively. Rice tips have the highest value followed by maize, sorghum, wheat and millet has the lowest value. Endogenous energy ranged from 11.53 14 to 12.7099 Kcal with the average of 12.02 KcaI. Dry matter digestibility was highest for rice tips (77.4 1%) followed by maize (75.64%), sorghum (72.13%), millet (71.88%) and lowest value for wheat (67.26%) due to relatively high content of cellulose, hemicellulose, lignin etc. Rice tips have better digestibility so it should be included at higher percentage in poultry feed. It was also found that crude fiber has indirect relationship with both AME and TME. While ether extract has direct relationship with gross energy. While for the comparison with the NRC values it was found that for both AME and TME except wheat, other ingredients have lesser values than reported in NRC and statistically it was found that there was non-significant relationship between the observed and standard mean values. Availability: Items available for loan: UVAS Library [Call number: 0854,T] (1).

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Effects Of Different Pre-Starter Diets On Broiler Performance, Organs Development, Gastro Intestinal Tract Development And Body Composition

by Muhammad Sami Ullah | Prof.Dr.Talat Naseer Pasha | Dr. Farina M Khatak | Dr. Saima.

Material type: book Book; Format: print Publisher: 2010Dissertation note: We examined the effects of feeding pre-starter crumble diets for a period of 1 to 10 days. One hundred and fifty day-old broiler chicks (Hubbard Classic) were purchased and the birds were divided into five groups (A, B, C, D & E) with three replicates having ten chicks each. Diets were fed with different metabolizable energy (varied from 2750 to 2850 kcal of ME/kg) but same crude protein level (21%) with different lysine levels (varied from 1.3 to 1.5%). After 10 days single starter and finisher crumble diets were fed to the birds up to 28 and 35 days of age respectively. A linear effect of ME from 2750 to 2850 was found on body weight in Treatments A (ME=2750kcal/kg; CP=21%; lysine=1.4%), B (ME=28000kcal/kg; CP=21%; lysine=1.4%) and D (ME=2850kcal/kg; CP=21%; lysine=1.4%) after 35 days of age. Minimum growth was observed in Treatment E (ME=2850kcal/kg; CP=21%; lysine=1.5%) after 35 days of age. There was linear improvement in feed intake in groups C, D and E with higher ME i.e 2850 and varying lysine from 1.3, 1.4 and 1.5% respectively and this trend remained same from 0-35 days of age. Better FCR with good body weight were observed in treatments B and D with FCR 1.78 and 1.75 respectively at the end of experiment. Statistical analysis of body weight after first week revealed significant difference (P<0.05) among the treatments B and C. Statistical analysis of body weight after 35 days revealed significant difference (P<0.05) among A, C, D and E. Statistical analysis for Body composition, organs weights, G I tract and Intestinal weights revealed non-significant differences (P>0.05). This study indicates that it is better to increase energy up to 2850kcal/kg with lysine 1.4 % in pre-starter diets for better performance, gut development, dressing percentage and above all a good start for good overall performance at 35 days of age. Availability: Items available for loan: UVAS Library [Call number: 1156,T] (1).

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