The effect of high rape cake and phytase addition on nutritive value of diets for broiler chickens

2011 ◽  
Vol 39 (4) ◽  
pp. 346-352
Author(s):  
T. Banaszkiewicz
1982 ◽  
Vol 62 (4) ◽  
pp. 1171-1180 ◽  
Author(s):  
H. W. HULAN ◽  
F. G. PROUDFOOT ◽  
C. G. ZARKADAS

Two experiments were carried out to ascertain the nutritional value of potato waste meal (PW) as a replacement for corn in practical poultry diets using 320 male and 320 female Cobb chicks fed from 1-day-old to 46 days (exp. 1) and 49 days (exp. 2) a basal cereal-based diet containing soybean and fishmeals or test diets each containing 50 g, 100 g, 150 g, 200 g and 300 g PW/kg. In both experiments, the diets were analyzed for elemental and amino acid composition, and the growth responses on the test diets were evaluated individually over a period of 28 days and 46 days or 49 days of ad libitum feeding. Although PW appeared limiting with respect to methionine and cystine, arginine and the aromatic amino acids, it was found that upon supplementation with methionine (0.5 g/kg), the test mixtures exhibited a synergistic effect compared with controls, and that this potato byproduct can be considered a good substitute ingredient for a proportion (200 g/kg) of the ground corn in a practical diet for broiler chickens. Feeding PW at a rate of up to 200 g/kg resulted in optimum biological response and monetary returns. The inclusion of up to 300 g/kg PW in the diets did not increase wetness of the litter or hardness of pellets, two factors reported earlier which could limit the use of PW in animal diets. Key words: Potato waste, nutritive value, broiler chicken


2021 ◽  
Vol 4 (2) ◽  
pp. 24-30
Author(s):  
J. M. Olomu ◽  
D. A. Nwachuku

Three experiments were conducted with broiler chickens to study the effects of replacing commercial Herring fishmeal with fishmeals prepared form crayfish, sardine, mudskeeper and mullet. In the first experiment, there were no significant differences in the performance, carcass dressing percentages and the composition of the hearts and livers when any of the locally prepared fishmeals replaced the commercial fishmeal in rations. Rations without fish meal depressed performance and carcass/neck dressing percentages significantly but did not affect the composition of the hearts and livers. In experiment 2, the fishmeals were fed at a supplementary level of 7.5% and at a level (20%) in which they constituted the only source of supplementary protein. In this experiment, performance of birds fed 7.5% of the different fishmeals were similar to those observed in the first experiment. When the fishmeals constituted the sole source of supplementary protein, performances of the birds were similar for all fishmeals and were better than when 7.5% fishmeals was fed in the ration in addition to groundnut meal. The ration containing groundnut meal as the sole supplementary protein source depressed performance of birds. In Experiment 3 the total protein efficiency ration (TPE) of the different fishmeal rations were assessed. The TPE for all the fishmeal ration were not significantly different and were significantly better than that of rations without fishmeal   


2011 ◽  
Vol 90 (6) ◽  
pp. 1239-1244 ◽  
Author(s):  
H.K. Dei ◽  
A. Bacho ◽  
J. Adeti ◽  
S.P. Rose

1982 ◽  
Vol 62 (3) ◽  
pp. 869-875 ◽  
Author(s):  
H. W. HULAN ◽  
F. G. PROUDFOOT

Sorghum grain (SG) contained more crude protein (103.5 g/kg) and ash (17.0 g/kg) but less crude fiber (17.7 g/kg) and total lipid (22.6 g/kg) than corn. The SG contained 0.37% ± 0.02 tannin, had a higher apparent metabolizable energy value than corn or wheat and contained all of the amino acids considered essential for chickens at levels in general between those of corn and wheat. Two experiments were carried out to ascertain the nutritive value of SG as a partial replacement for corn and wheat in practical poultry diets using 320 male and 320 female Cobb chicks in each. Starter (finisher) diets fed from 0–21 days (22–42 days) contained the following levels of SG: 15 (19); 30 (39); 45 (58)%. The diets were isoenergic and isonitrogenous. The inclusion of up to 45% SG in the starter diet and up to 58% in the finisher diet had no significant effect on mortality, live body weight, feed conversion or percentage of grade A carcasses. Key words: Broiler chickens, sorghum grain, milo, diets


1983 ◽  
Vol 24 (2) ◽  
pp. 205-212 ◽  
Author(s):  
G. L. Campbell ◽  
H. L. Classen ◽  
R. D. Reichert ◽  
L. D. Campbell

2019 ◽  
Vol 98 (11) ◽  
pp. 5778-5788 ◽  
Author(s):  
Oluyinka A Olukosi ◽  
Robin L Walker ◽  
Jos G M Houdijk

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1774
Author(s):  
Zhengke Wu ◽  
Jiao Liu ◽  
Jiang Chen ◽  
Shoaib Ahmed Pirzado ◽  
Yang Li ◽  
...  

Rapeseed meal (RSM) is a common protein ingredient in animal diets, while the proportion of RSM in diets is limited because of its anti-nutritional factors. Fermentation based on mixed microbial strains appears to be a suitable approach to improve the nutritive value of rapeseed meal in animal feed. In this study, we evaluated the effects of fermentation on the apparent metabolizable energy (AME) values and standardized ileal digestibility (SID) of amino acids in RSM fed broilers. The AME and nitrogen-corrected apparent metabolizable energy (AMEn) values of RSM and fermented rapeseed meal (FRSM) were determined by the substitution method, with RSM and FRSM proportionally replacing the energy-yielding components of the basal diet by 30%. Results show that fermentation improved AME and AMEn of RSM from 7.44 to 8.51 MJ/kg and from 7.17 to 8.26 MJ/kg, respectively. In the second experiment, two experimental diets were formulated, with RSM and FRSM being the sole sources of amino acids. A nitrogen-free diet (NFD) was also formulated to determine endogenous amino acids losses (EAAL). Feeding on FRSM resulted in higher (p < 0.05) apparent ileal digestibility (AID) and SID of alanine, valine, isoleucine, leucine, tyrosine, lysine, arginine, and phenylalanine. No significant differences between RSM and FRSM were found for AID and SID of asparagine, histidine, threonine, serine, glutamine, praline, glycine, methionine, and cystine. FRSM had greater AMEn values and SID of amino acids compared to RSM, therefore, FRSM was nutritionally superior to RSM in broiler diets.


1966 ◽  
Vol 20 (4) ◽  
pp. 675-687 ◽  
Author(s):  
Jean Robertson ◽  
Margaret S. Vipond ◽  
D. Tapsfield ◽  
J. P. Greaves

1. The nutrient content and distribution of the carcass meat in broilers (B) and free range cockerels (FR) was studied in two experiments in 1961–2. Half the birds of each type were roasted at 177°C, without additional fat, before dissection and analysis. The breast muscles and red meat were separately analysed for moisture, protein, fat and thiamine. 2. Chunky hybrids (frozen) and Light Sussex × Rhode Island Red (LS × RIR) cockerels were used in both experiments. Expt 1 (group 1) was a pilot study (using groups of six) inwhich B and FR of similar dressed weight were compared. Expt 2 (group 2) consisted of twelve ‘fresh’ (B1) and twelve frozen (B2) broiler hybrids from the same batch of birds killed at 9 weeks; twelve slightly heavier LS × RIR cockerels (FR2) were killed at 18 weeks and twelve Sykes hybrid 3 cockerels (FR1) killed at 20 weeks. The birds received various standard feeds. 3. The edible portion (skin plus meat), expressed as a percentage of the dressed weight, was greater in the free range birds than in the broiler chickens. Increased cooking losses resulting from freezing were responsible for a significantly smaller proportion of edible meat in the cooked frozen broilers. In both groups the edible portion increased with age irrespective of breed or weight. 4. In broiler and free range chickens differenccs in the mean protein content of the total edible meat were small. 5. Fat content appeared to be related to breed as well as to type of bird. In group 1, B contained slightly more fat than FR1. In group 2, B1, and B2, contained significantly more fat then FR1, but the fat content of the raw meat in FR2, was greater. 6. In both experiments the flesh of the free range chickens contained more thiamine than the broiler meat. In group 1 this difference was significant in all the cooked birds; in group 2 significant differences between free range chickens and broilers were found in the breast and red meat of the cooked birds for all comparisons except FR2 and B1. About one-third of the thiamine was lost on cooking both types of chicken in group 1; in group 2 the loss from the broilers was similar but in the FR birds between 18% (FR1) and 26% (FR2) of the thiamine was destroyed. 7. In general the meat of the broilers contained less thiamine and more fat than did that of the free range chickens. Though such differences are of no significance in a mixed diet (as chicken supplies so little thiamine) they are a useful index of differences in nutritive value which result from the different systems of management.


Sign in / Sign up

Export Citation Format

Share Document