Poultry Meat Quality and Welfare as Affected by Organic Production System
Talha ELsadig Abbas,
Mohamed Elamin Ahmed
Issue:
Volume 3, Issue 5-1, September 2015
Pages:
1-4
Received:
1 January 2015
Accepted:
8 January 2015
Published:
22 May 2015
Abstract: Most of consumers preferring organic food accompanied emerge of environmental awareness in the last decades. Organic production system is considered as an important solution for the environment problems because it improves sustainable agriculture by using organic compounds and avoiding synthetic chemical ones, restricting intensive production and making the entire chain of production under control. Therefore, it is encouraged and supported by environmental protection agencies in spite of the higher production cost of organic production compounds. Due to its higher production cost most producers prefer intensive systems because they focus on reducing cost and increasing production regardless of environmental degradation. Organic poultry system usually mentioned with free-range system and poultry welfare. That is because all organic systems are free-range. Organic system gets a lot of attention of animal welfare organizations because it assists birds to express normal behavior by offering plenty space. Organic or free-range system by some modifications and developing of the system regarding good management of its environment in addition to establishment of biosecurity measures it could considered as a suitable system for human, poultry and environment rather than intensive system because it achieves human health by avoiding dangerous remainders in food such as chemical residues, and for poultry by offering good welfare and health, and also to environment by improving sustainable agriculture.
Abstract: Most of consumers preferring organic food accompanied emerge of environmental awareness in the last decades. Organic production system is considered as an important solution for the environment problems because it improves sustainable agriculture by using organic compounds and avoiding synthetic chemical ones, restricting intensive production and m...
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Effect of Dietary Yeast (Saccharomyces cerevisiae) Supplementation on Performance, Carcass Characteristics and Some Metabolic Responses of Broilers
Mohamed E. Ahmed,
Talha E. Abbas,
Mojahid A. Abdlhag,
Dafaalla E. Mukhtar
Issue:
Volume 3, Issue 5-1, September 2015
Pages:
5-10
Received:
10 May 2015
Accepted:
10 May 2015
Published:
22 May 2015
Abstract: This study was conducted to evaluate the effect of feeding graded levels of yeast on broiler performance, carcass characteristics and some hematological indices. One day old Hubbard broiler chicks (n=160) were randomly allocated to five dietary treatments. Each treatment consisted of 4 replicates of 8 broilers each. The dietary treatments contained 0% yeast (Saccharomyces cerevisiae) as a negative control diet, 0% yeast + 30 ppm Oxytetracyline as a positive control, 1%, 2% and 3% yeast in the starter and finisher diets. During the experimental periods of 6 weeks, feed intake, body weight gain and feed conversion ratio values were calculated. At the end of the experimental period (6 weeks of age), some biochemical and hematological indices, carcass characteristics traits and internal organs weights were recorded. Growth performance parameters were significantly (P≤0.05) affected by experimental diets. Chicks fed either 0 or 3% yeast recorded the highest (P≤0.05) feed intake, however, the best (P≤0.05) body weight gain was obtained by birds fed 0 or 1% dietary yeast compared to the positive control diet. The highest (P≤0.05) feed conversion ratio was reported for birds fed the positive control diet and 3% dietary yeast compared to the negative control diet. The inclusion of different dietary treatments had no significant (P≥0.05) effects on dressing percentage, hot base and relative weights of heart, gizzard and abdominal fat. Nevertheless, birds fed 3% dietary yeast showed significant (P≤0.05) decrease in the relative weight of the liver compared to the negative control diet. Relative weights of breast and thigh were significantly (P≤0.05) higher in birds fed 1% yeast than those fed 3% yeast. There were linear decreases in serum cholesterol and albumin of broilers fed graded levels of dietary yeast. It is concluded that yeast can be included in broiler diet at 1% without detrimental effects on performance, and could therefore serve as a natural substitute for antibiotics.
Abstract: This study was conducted to evaluate the effect of feeding graded levels of yeast on broiler performance, carcass characteristics and some hematological indices. One day old Hubbard broiler chicks (n=160) were randomly allocated to five dietary treatments. Each treatment consisted of 4 replicates of 8 broilers each. The dietary treatments contained...
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