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Free-ranging avifauna as a source of generalist parasites for captive birds in zoological settings: An overview of parasite records and potential for cross-transmission Полный текст
2020
Patricio D. Carrera-Jativa | Eric R. Morgan | Michelle Barrows | Gustavo Jimenez-Uzcategui | Jorky Roosevelt Armijos Tituaña
Captive birds in zoological settings often harbor parasites, but little information is available about the potential for free-ranging avifauna to act as a source of infection. This review summarizes the gastrointestinal parasites found in zoo birds globally and in seven common free-ranging avian spe¬cies [mallard (Anas platyrhynchos), Eurasian blackbird (Turdus merula), common starling (Sturnus vulgaris), Eurasian jackdaw (Corvus monedula), house sparrow (Passer domesticus), European robin (Erithacus rubecula), and rock dove (Columba livia)] to identify the overlap and discuss the potential for cross-species transmission. Over 70 references were assessed, and papers spanned over 90 years from 1925 to 2019. A total of 60 studies from 1987 to 2019 met the eligibility cri¬teria. All examined free-ranging avifauna harbored parasite species that were also reported in zoo birds, except for the European jackdaw. Parasites reported in captive and free-ranging birds include nematodes (Capillaria caudinflata, Dispharynx nasuta, Ornithostrongylus quadriradiatus, Strongyloides avium, Syngamus trachea, and Tetrameres fissispina), cestodes (Dicranotaenia coronula, Diorchis stefanskii, Fimbriaria fasciolaris, and Raillietina cesticillus, Sobolevicanthus gracilis), trematode (Echinostoma revolutum), and protozoa (Cryptosporidium baileyi). Although no study effectively proved cross-transmission either experimentally or by genetic analysis, these parasites demonstrate low host specificity and a high potential for parasite sharing. There is potential for parasite sharing whenever determinants such as host specificity, life cycle, and hus¬bandry are favorable. More research should be carried out to describe parasites in both captive and free-ranging birds in zoological settings and the likelihood of cross-infection. Such information would contribute to evidence-based control measures, enhancing effective husbandry and pre¬ventive medicine protocols. [J Adv Vet Anim Res 2020; 7(3.000): 482-500]
Показать больше [+] Меньше [-]Сharacterization of lytic activity of Phage SAvB14 on Staphylococcus aureus variant bovis Полный текст
2020
Yulia Horiuk | Victor Horiuk | Mykola Kukhtyn | Anatoliy Tsvihun | Sergiy Kernychnyi
Objective: The objective of this study was to investigate the intensity of phage infection caused by Phage SAvB14, which was isolated from dairy farms, depending on the initial number of Staphylococcus aureus cells in the medium. Material and methods: To evaluate the impact of the viable bacteria S. aureus var. bovis on the intensity of phage infection caused by Phage SAvB14, 1 mg of phagolysate (phage titer 105 CFU/ ml) was introduced in 9 ml of nutrient broth with an appropriate amount of daily culture of S. aureus var. bovis under study. The number of viable staphylococci was determined by total viable count/ml. Results: In this experiment, we found that the intensity of phages lytic activity was dependent on the number of sensitive bacterial cells in the volume of the culture medium. Effective phage ther¬apy requires a high concentration of phages in the medium (inflammation foci) for rapid contact of the virus with bacteria. Conclusion: When developing a phage drug to treat subclinical mastitis, it is necessary to increase the phage titer in the drug or its dosage compared to the clinical form, as there is a lower proba¬bility of phage contact with a susceptible microbial cell. Besides, at a high concentration of bacte¬ria, there is a gradual decrease in nutrients in the medium, resulting in phages going back to the condition of lysogeny. [J Adv Vet Anim Res 2020; 7(3.000): 509-513]
Показать больше [+] Меньше [-]Effect of dietary supplementation of phytogenic feed additive on performance traits, serum neopterin, and cutaneous basophil hypersensitivity response in heat-induced stress model of broiler chickens Полный текст
2020
Saravanakumar Marimuthu | Ramasamy Selvam | Arigesavan Kaninathan | Prashanth DSouza
Objective: The trial was aimed at assessing the effect of phytogenic feed additive (PFA), a natural adaptogen, on growth performance, serum neopterin level, and cutaneous basophil hypersensi¬tivity (CBH) response in heat-induced stress model of broilers. Materials and Methods: One-day-old Ross 308 chicks (N = 360) were randomly distributed among normal control (NOR), heat-stress control (HSC), and PFA treatment (HSC plus PFA at 200 gm/ton of feed) group. HSC and PFA groups were subjected to heat stress (HS) (32°C36°C) from 9:00 a.m. to 5:00 p.m. for 35 days. The impact of HS on growth performance, serum neopterin level, and CBH response was assessed. Results: High ambient temperature worsened the performance traits [bodyweight (p < 0.05) and feed conversion ratio] and significantly lowered the serum neopterin level and CBH response in the HSC group when compared to the NOR group. However, supplementation of PFA at 200 gm/ ton of feed to birds mitigated the detrimental effects of HS. Conclusion: PFA at 200 gm/ton demonstrated the immunomodulatory effect through the resto¬ration of serum neopterin level, CBH response, and growth performance traits in heat-stressed broiler chickens. Thus, PFA can be used as a natural adaptogen to increase the stress resistance and mitigate the negative consequences of various stressors in broiler chickens. [J Adv Vet Anim Res 2020; 7(1.000): 141-147]
Показать больше [+] Меньше [-]Biofilm forming potentiality of Escherichia coli isolated from bovine endometritis and their antibiotic resistance profiles Полный текст
2020
Ismail Abd Elhafez Radwan Raheel | Walid Hamdy Hassan | Shaaban Salem Radwan Salem | Hala Sayed Hassan Salam
Objective: The objectives of this study were to determine the biofilm-forming capability and anti¬microbial susceptibility of Escherichia coli recovered from bovine endometritis samples. Materials and Methods: A total of 120 uterine specimens were collected from cows suffering from endometritis for bacteriological examination. Antimicrobial susceptibility testing was carried out for all isolated E. coli by using the disc diffusion method. The isolates were phenotypically studied for biofilm-forming ability by cultivation on yeast extract -casamino acids Congo red agar (CRA). Some randomly selected isolates were chosen for the molecular identification of some virulence and resistance genes. Results: A total of 58(48.3%) E. coli isolates could be isolated from the 120 samples. Antimicrobial susceptibility testing exhibited that 91.4%, 79.3%, 79.3%, 74.1%, and 58.6% of the isolates were sensitive to gentamicin, amoxicillin-clavulanic acid, ciprofloxacin, cephalexin, and sulfamethox¬azole-trimethoprim, respectively. On the other hand, 91.4% and 70.7% isolates were resistant to cefotaxime and doxycycline, respectively. Cultivation on CRA revealed that 46.6% of isolates were biofilm producers. The molecular detection of resistance and virulence genes declared that all iso¬lates harbored blaTEM, sul1, tetA, qnrS, blaCTX-M, and fimH with a percentage of 100%, papC (40%), and hlyA (10%). FimH was the most prevalent biofilm-associated gene. Conclusion: The present study highlights the high prevalence of multi-drug- resistant E. coli asso¬ciated with bovine endometritis. The detection of the fimH gene is circumstantial evidenced that this gene has a crucial role in biofilm formation in intrauterine pathogenic E. coli. [J Adv Vet Anim Res 2020; 7(3.000): 442-451]
Показать больше [+] Меньше [-]Growth performances and meat yield characteristics of commercial cockerels fed antibiotic and probiotic Полный текст
2020
Md Nazmul Hasan | Md Abul Kalam Azad | Md Ataul Goni Rabbani | Tahera Yeasmin | Md Harun Or Rashid
Objectives: The current research aimed at investigating growth performances and meat yield characteristics of commercial cockerels supplemented with antibiotics and probiotics to the diet. Materials and methods: A total of 1,350 commercial cockerels (ISA Brown) were indiscriminately distributed to 3 treatment groups, each having three replications of 150-day-old chicks based on completely randomized design. The basal diet was treated as the control, while the experimental groups receiving Enrofloxacin 1 gm/kg and Protexin 1 gm/kg feed were considered as antibiotic and probiotic groups, respectively. Bodyweight, feed intake (FI), feed conversion ratio (FCR), and other relevant characteristics were recorded weekly until 49 days of trial. In the end, similar number (10) of birds from each replicate group were slaughtered to determine the carcass characteristics. Results: Significantly, better results were found in the overall growth performances of the cock¬erels in the probiotic-fed treatment group. Highly significant differences were also found in live bodyweight, weight gain, daily gain, FI, FCR, survivability, dressing percentage, abdominal fat, breast meat, drumstick, and thigh weight in the probiotic-fed treatment group compared to the others. Conclusion: The results of the present study indicate that the inclusion of dietary probiotics has a superior performance to antibiotics and may have the potentiality to be used as an alternative growth enhancer in the diet of cockerels. [J Adv Vet Anim Res 2020; 7(3.000): 471-476]
Показать больше [+] Меньше [-]Evaluation of short-term loop colostomy in dogs using conventional and supporting subcutaneous silicone drain techniques Полный текст
2020
Alaa Samy | Abdelnasser Abdalla | Awad Rizk
Evaluation of short-term loop colostomy in dogs using conventional and supporting subcutaneous silicone drain techniques Полный текст
2020
Alaa Samy | Abdelnasser Abdalla | Awad Rizk
Objective: This study aimed at evaluating the supporting and non-supporting loop colostomy techniques in dogs. Materials and Methods: In this study, 12 adult healthy mongrel dogs were used to carry out a short-term (21 days) temporary flank loop colostomy. The dogs were divided into two groups (n = 6). In the first group (Con group), conventional stoma fixation was operated without loop support. In the second group [subcutaneous silicone drain (SSD) group], an SSD was used as a supporting bridge. The stoma was fixed by a modified, interrupted seromuscular vertical mattress suture pattern. Both peristomal and stomal complications were recorded. Results: Results showed that a total of seven dogs (58%) suffered complications. There was a sig¬nificant tendency toward less peristomal (p = 0.012) and stomal complications (p = 0.001) in the SSD group. The intensity of pain was significantly (p < 0.05) different between the two groups in the first week post surgery. Comfort with stoma care was significantly (p = 0.015) better in the SSD group, experiencing the best results. Conclusion: It is concluded that an appropriate stoma location, using a soft supporting bridge, stoma fixation using modified interrupted neuromuscular vertical mattress sutures, and proper appliance fixation by adhesive tapes and a tight T-shirt may overcome the complications of short-term loop colostomy in dogs and introduce a satisfaction for stoma care. [J Adv Vet Anim Res 2020; 7(4.000): 685-691]
Показать больше [+] Меньше [-]Evaluation of short-term loop colostomy in dogs using conventional and supporting subcutaneous silicone drain techniques Полный текст
2020
Samy, Alaa | Abdalla, Abdelnasser | Rizk, Awad
Objective: This study aimed at evaluating the supporting and non-supporting loop colostomy techniques in dogs. Materials and Methods: In this study, 12 adult healthy mongrel dogs were used to carry out a short-term (21 days) temporary flank loop colostomy. The dogs were divided into two groups (n = 6). In the first group (Con group), conventional stoma fixation was operated without loop support. In the second group [subcutaneous silicone drain (SSD) group], an SSD was used as a supporting bridge. The stoma was fixed by a modified, interrupted seromuscular vertical mattress suture pattern. Both peristomal and stomal complications were recorded. Results: Results showed that a total of seven dogs (58%) suffered complications. There was a significant tendency toward less peristomal (p = 0.012) and stomal complications (p = 0.001) in the SSD group. The intensity of pain was significantly (p < 0.05) different between the two groups in the first week post surgery. Comfort with stoma care was significantly (p = 0.015) better in the SSD group, experiencing the best results. Conclusion: It is concluded that an appropriate stoma location, using a soft supporting bridge, stoma fixation using modified interrupted neuromuscular vertical mattress sutures, and proper appliance fixation by adhesive tapes and a tight T-shirt may overcome the complications of short-term loop colostomy in dogs and introduce a satisfaction for stoma care. J. Adv. Vet. Anim. Res., 7(4): 685-691, Dec 2020 http://doi.org/10.5455/javar.2020.g468
Показать больше [+] Меньше [-]Clinico-epidemiological investigation of feline panleukopenia and parvoviral enteritis in the two largest pet hospitals in Bangladesh Полный текст
2020
Nurun Nahar Chisty | Joseph P. Belgrad | Abdullah Al Sattar | Sazeda Akter | Md. Ahasanul Hoque
Clinico-epidemiological investigation of feline panleukopenia and parvoviral enteritis in the two largest pet hospitals in Bangladesh Полный текст
2020
Nurun Nahar Chisty | Joseph P. Belgrad | Abdullah Al Sattar | Sazeda Akter | Md. Ahasanul Hoque
Objective: A clinico-epidemiological study was conducted at two veterinary hospitals in Dhaka to evaluate the prevalence of parvoviral enteritis (PVE) in dogs and feline panleukopenia (FPL) in cats, to detect factors associated with them, and to identify their common clinical signs. Materials and Methods: Clinico-epidemiological data were collected for a total of 88 dogs and 129 cats which were presented to the hospitals, entered into MS excel 2010, and then transferred to STATA-14 software for conducting descriptive and univariable statistical analyses (Fishers exact test). The maps showing the spatial distribution of PVE and FPL were produced by using QGIS software version 2.18.13. Results: PVE in dogs and FPL in cats had the highest prevalence compared to other diseases (34.1%; 95% confidence interval: 24.344.9; N = 88 and 20.2%; 95% confidence interval: 13.6 28.1; N = 129, respectively). Young age (43.8%), poor body condition (58.4%), and exotic breeds (44.2%) were significantly associated with the occurrence of PVE (p ≤ 0.05). Poor body condition (27.8%) and non-vaccination status (26.7%) were associated with FPL (p ≤ 0.05). Both PVE and FPL showed clinical signs of being off-feed, frequent vomiting, weakness, and moderate dehydration. Conclusion: The high prevalence of PVE and FPL indicates that they are common in dogs and cats in Dhaka, Bangladesh. The factors related to PVE are young age, exotic breed, and poor body condition score (BCS), and FPL are poor BCS and non-vaccination. Specific measures such as care during younger age, good nutrition, and routine vaccination are needed to prevent and control PVE and FPL in Dhakas dog and cat population. [J Adv Vet Anim Res 2020; 7(4.000): 726-733]
Показать больше [+] Меньше [-]Clinico-epidemiological investigation of feline panleukopenia and parvoviral enteritis in the two largest pet hospitals in Bangladesh Полный текст
2020
Chisty, Nurun Nahar | Belgrad, Joseph P | Sattar, Abdullah Al | Akter, Sazeda | Hoque, Md Ahasanul
Objective: A clinico-epidemiological study was conducted at two veterinary hospitals in Dhaka to evaluate the prevalence of parvoviral enteritis (PVE) in dogs and feline panleukopenia (FPL) in cats, to detect factors associated with them, and to identify their common clinical signs. Materials and Methods: Clinico-epidemiological data were collected for a total of 88 dogs and 129 cats which were presented to the hospitals, entered into MS excel 2010, and then transferred to STATA-14 software for conducting descriptive and univariable statistical analyses (Fisher’s exact test). The maps showing the spatial distribution of PVE and FPL were produced by using QGIS software version 2.18.13. Results: PVE in dogs and FPL in cats had the highest prevalence compared to other diseases (34.1%; 95% confidence interval: 24.3–44.9; N = 88 and 20.2%; 95% confidence interval: 13.6– 28.1; N = 129, respectively). Young age (43.8%), poor body condition (58.4%), and exotic breeds (44.2%) were significantly associated with the occurrence of PVE (p ≤ 0.05). Poor body condition (27.8%) and non-vaccination status (26.7%) were associated with FPL (p ≤ 0.05). Both PVE and FPL showed clinical signs of being off-feed, frequent vomiting, weakness, and moderate dehydration. Conclusion: The high prevalence of PVE and FPL indicates that they are common in dogs and cats in Dhaka, Bangladesh. The factors related to PVE are young age, exotic breed, and poor body condition score (BCS), and FPL are poor BCS and non-vaccination. Specific measures such as care during younger age, good nutrition, and routine vaccination are needed to prevent and control PVE and FPL in Dhaka’s dog and cat population. J. Adv. Vet. Anim. Res., 7(4): 726-733, Dec 2020 http://doi.org/10.5455/javar.2020.g474
Показать больше [+] Меньше [-]Influence of gender, neuter status, and training method on police dog narcotics olfaction performance, behavior and welfare Полный текст
2020
Azhar F. Abdel Fattah | Shereen El. Abdel-Hamid
Influence of gender, neuter status, and training method on police dog narcotics olfaction performance, behavior and welfare Полный текст
2020
Azhar F. Abdel Fattah | Shereen El. Abdel-Hamid
Objective: This study was carried out to study the influence of gender, neuter status, and training method on police dog narcotics olfaction performance, behavior, and welfare. Materials and Methods: A total of 120 German Shepherds aged 13 years were used for this study. The dogs were separated into two experiments. The first experiment (32 dogs and 28 bitches) was used to study the influence of gender on olfaction and smell to narcotics in police dog perfor¬mance and training methods with behavioral problems and welfare. The second experiment (30 dogs and 30 bitches) was used to study the influence of sexual status (entire or neutered) on the smelling of narcotics in police dog performance by comparing with intact dogs and bitches. Results: We found that there were significant differences in sex in training to detect narcotics. Male German Shepherds were found to be significantly more trainable than females. Neutering causes a difference in trainability in male and female dogs. Gonadectomy had adverse effects on training. The intact male and female German Shepherds were found to be significantly more train¬able than the neutered ones, and the reward-based method was found to be significantly more trainable than punishment. Dog training methods incorporated by punishment result in pain, suf¬fering, emotional instability, symptoms of depression, aggression, unwanted barking, growling at other people, not under control all time, less trainability, increased problematic behavior, and decreased dog welfare. Conclusion: Reward-based method is associated with lower lousy behavior and dogs with good behavior, such as, attachment attention behavior, dogs under the control of handler all times, higher trainability, less problematic behavior, and increased dog welfare. [J Adv Vet Anim Res 2020; 7(4.000): 655-662]
Показать больше [+] Меньше [-]Influence of gender, neuter status, and training method on police dog narcotics olfaction performance, behavior and welfare Полный текст
2020
Fattah, Azhar F Abdel | Hamid, Shereen El Abdel
Objective: This study was carried out to study the influence of gender, neuter status, and training method on police dog narcotics olfaction performance, behavior, and welfare. Materials and Methods: A total of 120 German Shepherds aged 1–3 years were used for this study. The dogs were separated into two experiments. The first experiment (32 dogs and 28 bitches) was used to study the influence of gender on olfaction and smell to narcotics in police dog performance and training methods with behavioral problems and welfare. The second experiment (30 dogs and 30 bitches) was used to study the influence of sexual status (entire or neutered) on the smelling of narcotics in police dog performance by comparing with intact dogs and bitches. Results: We found that there were significant differences in sex in training to detect narcotics. Male German Shepherds were found to be significantly more trainable than females. Neutering causes a difference in trainability in male and female dogs. Gonadectomy had adverse effects on training. The intact male and female German Shepherds were found to be significantly more trainable than the neutered ones, and the reward-based method was found to be significantly more trainable than punishment. Dog training methods incorporated by punishment result in pain, suffering, emotional instability, symptoms of depression, aggression, unwanted barking, growling at other people, not under control all time, less trainability, increased problematic behavior, and decreased dog welfare. Conclusion: Reward-based method is associated with lower lousy behavior and dogs with good behavior, such as, attachment attention behavior, dogs under the control of handler all times, higher trainability, less problematic behavior, and increased dog welfare. J. Adv. Vet. Anim. Res., 7(4): 655-662, Dec 2020 http://doi.org/10.5455/javar.2020.g464
Показать больше [+] Меньше [-]An estimation of greenhouse gas emission from livestock in Bangladesh Полный текст
2020
Nani Gopal Das | Nathu Ram Sarker | Md. Najmul Haque
An estimation of greenhouse gas emission from livestock in Bangladesh Полный текст
2020
Nani Gopal Das | Nathu Ram Sarker | Md. Najmul Haque
Objectives: The study was undertaken to investigate the greenhouse gas (GHG) emission from livestock in Bangladesh. Materials and Methods: The GHG emission inventory of livestock in Bangladesh was estimated according to the tier 1 approach of the Intergovernmental Panel on Climate Change (IPCC) using livestock population data from 2005 to 2018. It was also extrapolated for the next three decades, according to the growth of the livestock population. Results: According to the calculation, the GHG emission from livestock was 66,586 Gg/year CO2 equivalent (CO2e) in 2018. This emission may rise to 69,869, 80,618, 94,638, and 113,098 Gg/ year CO2e in 2020, 2030, 2040, and 2050, respectively. The share of enteric methane, manure methane, direct nitrous oxide emission, and indirect nitrous oxide emission in the total GHG emissions represented 44.0%, 3.6%, 51.5%, and 0.9%, respectively, in 2018. It may arise at a rate of 1.54%1.74% annually until 2050. Conclusion: The GHG inventory may guide professionals to formulate and undertake the effective mitigation measures of GHG emissions from livestock in Bangladesh. However, this inventory can be amended following the tier 2 approach recommended by the IPCC if necessary data are avail¬able at the national level. [J Adv Vet Anim Res 2020; 7(1.000): 133-140]
Показать больше [+] Меньше [-]An estimation of greenhouse gas emission from livestock in Bangladesh Полный текст
2020
Das, Nani Gopal | Sarker, Nathu Ram | Haque, Md Najmul
Objectives: The study was undertaken to investigate the greenhouse gas (GHG) emission from livestock in Bangladesh. Materials and Methods: The GHG emission inventory of livestock in Bangladesh was estimated according to the tier 1 approach of the Intergovernmental Panel on Climate Change (IPCC) using livestock population data from 2005 to 2018. It was also extrapolated for the next three decades, according to the growth of the livestock population. Results: According to the calculation, the GHG emission from livestock was 66,586 Gg/year CO2 equivalent (CO2e) in 2018. This emission may rise to 69,869, 80,618, 94,638, and 113,098 Gg/ year CO2e in 2020, 2030, 2040, and 2050, respectively. The share of enteric methane, manure methane, direct nitrous oxide emission, and indirect nitrous oxide emission in the total GHG emissions represented 44.0%, 3.6%, 51.5%, and 0.9%, respectively, in 2018. It may arise at a rate of 1.54%–1.74% annually until 2050. Conclusion: The GHG inventory may guide professionals to formulate and undertake the effective mitigation measures of GHG emissions from livestock in Bangladesh. However, this inventory can be amended following the tier 2 approach recommended by the IPCC if necessary data are available at the national level. J. Adv. Vet. Anim. Res., 7(1): 133-140, March 2020
Показать больше [+] Меньше [-]Evaluation of copper nanoparticles and copper sulfate effect on immune status, behavior, and productive performance of broilers Полный текст
2020
Sara Elsayed El-kazaz | Mona Hafez Hafez
Evaluation of copper nanoparticles and copper sulfate effect on immune status, behavior, and productive performance of broilers Полный текст
2020
Sara Elsayed El-kazaz | Mona Hafez Hafez
Objective: This study was conducted to compare between the nanoparticles of copper (Cu-NP) and copper sulfate (CuSO4) effect on immunity, pro-inflammatory cytokine, oxidant/antioxidant balance, different behavioral patterns, growth rate, and weight gain by adding them in drinking water of broilers. Materials and Methods: One hundred and fifty broiler chicks of 1-day-old were randomly divided into three groups: the first group was the control, the second group received CuSO4 in drinking water (10 mg/l), and the third group received Cu-NP in drinking water (10 mg/l) with replicates (n = 25) for 5 weeks of age. Blood samples collected for estimating immunoglobulins (A, G, and M), superoxide dismutase, pro-inflammatory (IL-6), erythrocyte sedimentation rate, heterophil/ lymphocyte (H/L) ratio, malondialdehyde (MDA), corticosterone hormone, and lymphoid organs index weight. Moreover, behavioral observations were undertaken from the 2nd week until the 5th week of age for measuring different behavioral patterns (feeding, drinking, crouching, body care, and comfort behaviors). Chicks were individually weighed weekly (gm); also, the weight gain, the intake of food, and the ratio of feed conversion were calculated. Results: Cu-NP administration has improved the blood profile, lymphoid organs index weight in Cu-NP treated broilers in relation to control and CuSO4 treated groups. Conversely, erythrocyte sedimentation rate, H/L ratio, MDA, and corticosterone hormone were reduced by Cu-NP treat¬ment. Moreover, Cu-NP has a positive effect on all behavioral patterns more than other groups which significantly reflect on the weight of the body, gaining of weight, and the intake of food in the Cu-NP treated group of birds. Conclusion: The findings in this study stated that when the drinking water of broilers was supple¬mented with Cu-NP, there might be an improvement in the immunity, behavior, and productive performance more efficiently than CuSO4. [J Adv Vet Anim Res 2020; 7(1.000): 16-25]
Показать больше [+] Меньше [-]Evaluation of copper nanoparticles and copper sulfate effect on immune status, behavior, and productive performance of broilers Полный текст
2020
El kazaz, Sara Elsayed | Hafez, Mona Hafez
Objective: This study was conducted to compare between the nanoparticles of copper (Cu-NP) and copper sulfate (CuSO4) effect on immunity, pro-inflammatory cytokine, oxidant/antioxidant balance, different behavioral patterns, growth rate, and weight gain by adding them in drinking water of broilers. Materials and Methods: One hundred and fifty broiler chicks of 1-day-old were randomly divided into three groups: the first group was the control, the second group received CuSO4 in drinking water (10 mg/l), and the third group received Cu-NP in drinking water (10 mg/l) with replicates (n = 25) for 5 weeks of age. Blood samples collected for estimating immunoglobulins (A, G, and M), superoxide dismutase, pro-inflammatory (IL-6), erythrocyte sedimentation rate, heterophil/ lymphocyte (H/L) ratio, malondialdehyde (MDA), corticosterone hormone, and lymphoid organs index weight. Moreover, behavioral observations were undertaken from the 2nd week until the 5th week of age for measuring different behavioral patterns (feeding, drinking, crouching, body care, and comfort behaviors). Chicks were individually weighed weekly (gm); also, the weight gain, the intake of food, and the ratio of feed conversion were calculated. Results: Cu-NP administration has improved the blood profile, lymphoid organs index weight in Cu-NP treated broilers in relation to control and CuSO4 treated groups. Conversely, erythrocyte sedimentation rate, H/L ratio, MDA, and corticosterone hormone were reduced by Cu-NP treatment. Moreover, Cu-NP has a positive effect on all behavioral patterns more than other groups which significantly reflect on the weight of the body, gaining of weight, and the intake of food in the Cu-NP treated group of birds. Conclusion: The findings in this study stated that when the drinking water of broilers was supplemented with Cu-NP, there might be an improvement in the immunity, behavior, and productive performance more efficiently than CuSO4. J. Adv. Vet. Anim. Res., 7(1): 16-25, March 2020
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