File Name: growth performance and carcass characteristics of broiler chickens .zip
This study was conducted to compare growth performance, carcass characteristics and meat quality of 4 breeds of local chicken. A total of 1-d-old chicks were distributed to 16 pens, with 4 treatments of breed, 4 replicates and 30 chicks per pen. Three Korean local breeds of white-mini broiler, Hanhyupho, and Woorimatdag, and a breed of silky fowl were raised under identical rearing and feeding conditions for d, d, d, and d, respectively.
The aim of this study was to investigate the effects of dietary supplementation with cinnamon oil on growth performance, behaviour, carcass traits and meat quality of broilers. One hundred and thirty-five Cobb day-old broiler chickens were randomly assigned into three equal treatment groups with three replicates pens of fifteen chickens each. The dietary treatments consisted of the basal diet as control C and basal diet supplemented with 0. On day 49, 5 birds from each pen 15 per treatment were slaughtered and the pectoralis major muscle samples were collected for meat quality evaluation. No effect of cinnamon oil supplementation on the probability of a bird standing at the feeder or the drinker was observed until the age of 17 days. Moreover, cinnamon oil supplementation did not affect body weight, feed intake and feed conversion ratio. At the same time, colour parameters, pH24, cooking loss, intramuscular fat and shear values were not affected by diets.
Metrics details. The study was performed in the subtropical area of northeastern Mexico. Within each of the growing phases the four treatment diets were formulated to contain similar levels of crude protein, amino acids, and other nutrients. In a completely randomized design, birds were allocated to the four treatments with five replicates floor pens of 10 birds each. Diets for broilers are based on grains such as sorghum or corn plus soybean meal, which have been expensive in recent years. Broiler meat is an important protein source for consumers.
This study examined strain, sex and slaughter weight effect on performance, meat quality and yield of broiler chicken. Ross strain had the highest feed intake Female broiler having heavier body weight Aboaca birds had the highest carcass yields for all slaughter weight than Anak and Ross. As slaughter weight increases, cooking loss and thermal shortening decreases while water holding capacity and shear force values increases. Overall, Aboaca strain was considered to have best performances for production. Broiler birds are specifically bred for rapid growth Packard to attain mature body size within 7—10 weeks depending on the strain, sex and management Alzenbarakji ; Abdollahi et al.
Two hundred and seventy day old unsexed Arbor Acre broiler chicks were assigned to nine dietary treatments comprising three replicates of 10 chicks each. Feed and water were given unrestrictedly. The feed intake and weights of birds were recorded on weekly basis. Nutrient digestibility was determined at each phase and carcass evaluation was done at the end of the experiment. The addition of phytase or protease alone and in combination increased the available nutrient levels and there was a significant effect of enzymes supplementation on nutrient digestibility. It could be concluded that phytase, protease and their combination improved performance, nutrient digestibility and carcass cut part of broiler chickens fed suboptimal crude protein diets. AJOL and the millions of African and international researchers who rely on our free services are deeply grateful for your contribution.
DOI: This study was carried out to investigate the effect of feeding canola meal CM on broiler performance, carcass yield, body temperature and plasma triiodothyronine T 3 and tetraiodothyronine T 4 concentration under heat stress. One hundred and sixty day-old male broiler chicks were assigned in groups of 5 to 32 battery cages in two identical environmentally controlled chambers. Diets were isocaloric and isonitrogenous.
This study examined strain, sex and slaughter weight effect on performance, meat quality and yield of broiler chicken. Ross strain had the highest feed intake Female broiler having heavier body weight Aboaca birds had the highest carcass yields for all slaughter weight than Anak and Ross.
Performance and carcass characteristics of broiler chickens with different growth potential and submitted to heat stress. Mail Address. In order to evaluate the effects of broiler genotype and of heat exposure on performance, carcass characteristics, and protein and fat accretion, six hundred one-day-old male broilers were randomly assigned in a 2 x 3 factorial arrangement, according to the following factors: genetic group selected and non-selected broilers and pair-feeding scheme Ad 32 - reared under heat stress and fed ad libitum ; Ad 23 - reared at thermoneutrality and fed ad libitum ; Pf 23 - reared at thermoneutrality and pair fed with Ad 32 , with a total of six treatments with four replicates of 25 birds each. Independent of pair-feeding scheme, selected broilers showed better feed conversion, higher carcass yield, and lower abdominal fat deposition rate. However, as compared to non-selected broilers, they reduced more intensively feed intake when heat exposed, which promoted significant breast-yield decrease, and more pronounced changes on carcass chemical composition.
Original study 22 Jan The aim of this study was to determine the effect of herbal feed additive on growth performance, carcass characteristics, the chemical composition of breast muscles and selected meat quality parameters in broiler chickens. The experiment was performed on Ross chickens, which were randomly divided into six groups with six replicates per group. In experimental groups, dietary energy concentration was reduced by 0.