Influence of different tropical stress conditions on biochemical parameters invarious broiler strains

2016 ◽  
Vol 50 (1) ◽  
Author(s):  
S. A. Amrutkar ◽  
V. K. Saxena ◽  
Simmi Tomar
Keyword(s):  
Heat Tolerance ◽  
Present Experiment ◽  
Biochemical Parameters ◽  
Stress Conditions ◽  
Broiler Chicks ◽  
Biochemical Traits ◽  
Naked Neck ◽  
Blood Biochemical ◽  
Exposure Trial ◽  
Naked Neck Gene

The present experiment was conducted to study the effect of different tropical stress conditions on biochemical traits in various broiler strains during 3 to 4 weeks of age. Introgressing some important major genes likes Naked neck (Na) and Frizzle (F) into broiler germplasm may substantially improve the heat tolerance. Hence, the experiment was designed to evaluate three indigenously developed broilers <italic>viz</italic>. CARIBRO-Tropicana (Naked neck and Frizzle gene bearing), CARIBRO-Mritunjai (Naked neck gene bearing) and CARIBRO-Vishal (Normal plumaged) under different THI (i.e. 72, 85 and 91) for 4 hours daily for 7 days. Total 324 broiler chicks (i.e. 36 chicks in each group) of 3 weeks of age were used in this study. The changes in blood biochemical parameters (i.e. Na, K, Glucose and ACTH) were examined in these experiments at 0<sup>th</sup>, 3<sup>rd</sup> and <sub>7</sub>th into exposure trials. The glucose, ACTH were observed lowest in frizzle and highest in normal plumaged birds under different THI. In experiment Na and K were observed higher in Frizzle and lowest in normal plumaged birds under different THI. The CARIBRO-Vishal showed highest stress as compared to other group. Higher the THI more severe was the effect on the traits. During the 7 day of exposure trial, birds of all the genetic group exhibited the phenomenon of acclimatization as reveled by the averages of various traits at different days into the exposure.

scholarly journals Effect of stocking density on behavioral traits, blood biochemical parameters and immune responses in meat ducks exposed to heat stress

2018 ◽  
Vol 61 (4) ◽  
pp. 425-432 ◽  
Author(s):  
Byung-Sung Park ◽  
Kyung-Hwan Um ◽  
Sang-O Park ◽  
Victor A. Zammit
Keyword(s):  
Heat Stress ◽  
Immune Responses ◽  
Biochemical Parameters ◽  
Density Lipoprotein ◽  
Stocking Density ◽  
Stress Conditions ◽  
Lipoprotein Cholesterol ◽  
Blood Biochemical Parameters ◽  
Behavioral Traits ◽  
Blood Biochemical

Abstract. High stocking density (HSD) and heat stress (HS) caused by climate change can lower blood homeostasis and negatively impact the behavioral traits of animals. The objective of this study was to explore the influence of stocking densities on behavioral traits, blood parameters, immune responses, and stress hormones in meat ducks (Cherry valley, Anas platyrhynchos) exposed to HS. A total of 320 meat ducks were assigned to four groups with different stocking densities using a randomized complete block design. The ducks were then reared for 42 days. The assigned density groups were as follows: (1) control group (CON, three birds m−2, normal environmental heat conditions); (2) low stocking density (LSD, three birds m−2, heat stress conditions); (3) medium stocking density (MSD, four birds m−2, heat stress conditions); and (4) high stocking density (HSD, six birds m−2, heat stress conditions). To induce HS, the environment of the poultry house was set to a temperature of 34±2∘C with a relative humidity of 70 % from 11:00 to 16:00 for the finisher period (from day 22 to day 42 of the rearing period). Concentrations of blood triacylglycerol, total cholesterol, low-density lipoprotein cholesterol (LDL-C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) were higher in the HS groups compared with the CON group, with HSD showing the highest levels (P < 0.05). The concentrations of high-density lipoprotein cholesterol (HDL-C) and glucose were lower in the HSD groups than in the CON group (P<0.05). Red blood cell (RBC) and platelet (PLT) counts were lower in HS groups compared with the CON group, with the HSD group displaying the lowest counts (P<0.05). Blood pH values were also higher in the HS groups than in the CON group, with the highest values observed in the HSD group (P<0.05). Concentrations of blood pCO2, HCO3, and TCO2 were higher in the HS groups than in the CON group, with HSD showing the lowest levels (P<0.05). The concentration of PO2 was higher in CON than in any of the HS groups, with the lowest levels found in the HSD group (P<0.05). The concentrations of blood IgG and corticosterone were increased in the HS groups compared with the CON group (P<0.05). Animal behavioral trait scores were also higher in HS groups than in the CON group (P<0.05); these scores were the highest in the HSD group. Overall, animal behavioral traits, blood biochemical parameters, and immune responses in meat ducks exposed to heat stress were highest in the HSD group, but not significantly different between the LSD or MSD groups.

scholarly journals Effects of dietary soybean and sunflower oils with and without L-carnitine supplementation on growth performance and blood biochemical parameters of broiler chicks

2015 ◽  
Vol 58 (2) ◽  
pp. 387-394 ◽  
Author(s):  
S. M. A. Jalali ◽  
R. Rabiei ◽  
F. Kheiri
Keyword(s):  
Soybean Oil ◽  
Growth Performance ◽  
Antibody Titer ◽  
Newcastle Disease ◽  
Sunflower Oil ◽  
Biochemical Parameters ◽  
Broiler Chicks ◽  
Carnitine Supplementation ◽  
Blood Biochemical ◽  
Dietary Oil

Abstract. An experiment was designed to investigate the effects of soybean, sunflower oil and dietary L-carnitine supplementation on growth performance, some blood biochemical parameters and antibody titer against Newcastle disease of broiler chicks. A 5-week feeding trial, 240 1-day old male broiler chicks (Ross 308) were randomly allocated to six dietary treatments as a 3 × 2 factorial experimental design where three sources of dietary oil contained soybean, sunflower and soybean plus sunflower oil with and without 120 mg kg−1 of L-carnitine supplementation in the diet. Results showed that soybean oil with L-carnitine significantly improved body weight gain and feed conversion ratio of broiler chicks in the grower and total period of rearing (p < 0.05). L-carnitine supplementation significantly increased total protein, globulin, cholesterol, HDL and LDL (high- and low-density lipoprotein) of blood serum in broiler chicks (p < 0.05). L-carnitine supplementation increased antibody titer against Newcastle disease of chicks and the highest levels were observed in those with the supplement of L-carnitine in the soybean oil dietary treatment. Results of this experiment showed that the growth performance and blood biochemical responses of broiler chicks to dietary supplementation with L-carnitine in dietary oil source and soybean oil, in comparison to sunflower oil, is the better plant oil for growth and immunological performance of broiler chicks.

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