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International Journal of Animal Science

Methionine Fermented Associated with Silybum Marianum is a Potential Hepatoprotective and Antioxidant in Cats with Inflammatory Liver Disease

[ ISSN : 2575-7806 ]

Abstract Citation Introduction Materials and Methods Results Discussion Conclusions References
Details

Received: 06-Feb-2018

Accepted: 22-Mar-2018

Published: 23-Mar-2018

Biasbetti E¹*, Martello E¹, Cocca T¹, Bigliati M², Mioletti S¹, Bruni N², and Capucchio MT¹

¹Department of Veterinary Science, University of Torino, Italy

²Clinica Veterinaria Napolivet, Italia

³Istituto Farmaceutico Candioli SpA, Italia

Corresponding Author:

Elena Biasibetti , Department of Veterinary Science, University of Torino, Largo Braccini 2, 10095 Grugliasco (Torino) Italy, Tel: +390116709035; Email: elena.biasibetti@unito.it

Keywords

Liver disease; Methionine fermented; Silybum marianum; Cat

Abstract

The causes of almost all Feline inflammatory liver diseases have not been determined yet, but it is suspected that infectious agents or immune mechanisms may underlie the inflammatory response. In experimental liver disease models, methionine metabolites such as S-adenosyl-methionine have shown considerable hepatoprotective effects. Also Silybum marianum is considered to have hepatoprotective and antioxidant functions. The purpose of this study is to evaluate the hepatoprotective and antioxidant effects of fermented methionine associated with Silibinin in adult domestic cats affected by neutrophilic cholangitis. Twenty cats with neutrophilic cholangitis were enrolled in the study. Ten cats were daily orally administered with a formulation based on fermented methionine and Silybum marianum. Ten cats, served as control. Hematochemical, biochemical and oxidative stress parameters were evaluated at 0, 15, 30, 60 and 90 days. Leukocyte, Alkaline Phosphatase (ALP) and Alanine AminoTransferase (ALT) were lower (p<0.05) in T group than C group at day 90. Bilirubin, GammaGlutamyl Transferase (GGT) at days 30 and 90 were lower (p<0.05) in treated group than control group. In group T, ALT, AST and reactive oxygen metabolite derivatives values significantly decreased at day 90 (P<0.05) compared to T0. In the same group biological antioxidant potential levels significantly increase at the end of the treatment (P<0.05). These findings suggest that the formulation based on fermented methionine and Silibinin has two relevant effects on the defence of hepatocytes in cats with neutrophilic cholangitis, specifically, it acts against oxidative stress and inflammation. Further investigations are ongoing to confirm these preliminary results.

Citation

Biasbetti E, Martello E, Cocca T, Bigliati M, Mioletti S, Bruni N, et al. Methionine Fermented Associated with Silybum Marianum is a Potential Hepatoprotective and Antioxidant in Cats with Inflammatory Liver Disease. Int J Anim Sci. 2018; 2(2): 1018.s

Introduction

Feline inflammatory liver disease includes a group of acquired inflammatory disorders such as cholangitis and less commonly hepatic parenchymal inflammation (hepatitis). The term cholangitis is preferred to cholangiohepatitis to describe an inflammatory liver disease. Cholangitis includes the histopathological abnormalities affecting the biliary tract with secondary, if any, involvement of the hepatic parenchyma. The World Small Animal Veterinary Association Standardization Committee (WSAVASC) recognizes three forms of feline cholangitis: Neutrophilic, lymphocytic, and chronic [1]. Liver biopsy and/or bile analysis (cytology and bacterial culture) are necessary for the final diagnosis of these pathologies [1].

Histopathological examination reveals lymphocytic hepatic infiltrates in the majority of cats with the lymphocytic form being mostly caused by an immune-mediated response [2]. On the other hand, the chronic form is associated with liver fluke [1].

Neutrophilic cholangitis is the most commonly reported form of cholangitis accounting for more than half (56.3%-90%) of inflammatory liver disease cases [1]. Most of the time, the development of this form is a consequence of a bacterial infection [3,4].

Hitherto, the use of antibiotics and supportive care is the elective treatment for the neutrophilic cholangitis in cats [1,3].

Several drugs, nutraceutical, and botanic extracts have cytoprotective properties. These products enhance natural defense mechanisms able to inhibit inflammation and fibrosis, to prevent apoptosis, or to protect against oxidant injuries maintaining an appropriate redox balance [5].

S-Adenosyl Methionine (SAMe), generated from L-methionine and ATP in a two-step reaction catalyzed by methionine adenosyltransferase, plays a central role in the trans-sulfuration process that generates glutathione [6,7].This co-substrate is assumed to have anti-inflammatory and antioxidant effects [7]. Another agent is Silymarin, a flavonoid extracted from the milk thistle Silybum marianum [8]. It is composed of multiple flavonolignans including the most active constituent the Silibinin (synonymous of silybin). This product has recently started to be considered as an effective treatment for a variety of diseases in human and veterinary medicine [9]. For example, it is used for the treatment of hepatobiliary disease having antioxidant, anti-inflammatory, and antifibrotic properties [5].

The purpose of this study is to evaluate the hepatoprotective and antioxidant effects of fermented methionine associated with Silibinin in adult domestic cats affected by neutrophilic cholangitis.

Materials and Methods

The study was performed at the Veterinary Clinic Napoli vet, in Naples (Italy) in the years 2015 and 2016. Owners’ written consents were obtained before performing any procedure and all the samples were collected by the same clinician.

Experimental Animals

Twenty cats with neutrophilic cholangitis were enrolled in the study.The diagnosis of hepatic disease was based on clinical and radiographic signs, heapatic fine-needle aspirate cytology and hematochemical analysis.

All cats were treated with antibiotics (Amoxicillin-clavulanate SID 12.5-25mg/kg) and intravenous fluid therapy, as a supportive care was used for rehydration and correction of electrolyte concentration.

The animals enrolled in this study, had a similar nutritional management consisting in high quality food with a highly digestible protein source as you can find in most of the commercially available gastrointestinal diets. Ten cats (T group) were daily orally administered with a formulation based on fermented methionine and Silibinin (1 tab each 5kg b.w.). Ten cats, whose owners did not give consent for any supplemental therapy, were selected from the clinical database and used as control group (C group). The following criteria were used for case exclusion: concomitant metabolic disease or disorder potentially impacting liver functions (such as diabetes mellitus, gastritis, inflammatory bowel disease, chronic kidney disease, Cushing syndrome), and treatments with specific hepatoprotective products during the 30 days before the enrolment. Clinical condition, body weight, and body condition score were evaluated at 0 (T0), 15 (T15), 30 (T30), 60 (T60) and 90 (T90) days.

Sampling Blood

samples were collected from the jugular vein after an overnight fasting and divided into two tubes: a K3-EDTA anticoagulant tube for the whole blood, and a tube without anticoagulant for the serum. For a Complete Blood Count (CBC) a standard analytical device was used to evaluate: Hematocrit (HT), Hemoglobin (HG), Red Blood Cells (RBC), White Blood Cells (WBC), Neutrophils (N), Eosinophils (EO), Lymphocytes (LYM) at T0, T30 and T90 only. For the biochemical analysis an automated analyser was used to obtain creatinine (CREA), Blood Urea Nitrogen (BUN), Phosphorus (P), Total Proteins (TP), Albumins (ALB), albumin/globulin (A/G) ratio, Glucose (GLU), Alanine Transaminases (ALT), Alanine Aminotransferases (AST), Alkaline Phosphatases (ALP), Gamma-Glutamyl Transferase (GGT), Bilirubin (BIL) and Cholesterol (CHOL) values at T0, T15, T30 and T90.

The serum total oxidant levels and antioxidant capacity were assessed by d-ROMs (reactive oxygen metabolites derivatives) test and BAP (Biological Antioxidant Potential) test, respectively 10 at T0, T15, T30, T60 and T90 only for the T group.

Statistical Analysis

Data were analyzed using Kruskal-Wallis and Wilcoxon rank sum test using Graphpad Prism 7.02 (Graphpad Software©; San Diego, CA,USA). Test results were considered statistically significant when p-value <0.05, whereas p-values <0.10 represented a trend.

Results

Ten male and ten female cats with no differences in sex distribution between the T and C groups were included in the study.

The majority of cats enrolled were domestic shorthair (13/20, 65%), other breeds were Persian (5/20,25%), Chartreux Cat (1/20,5%) and British Shorthair (1/20,5%). The mean age for the cats belonging to the T group was 8yr (range, 2-15 yr) and the body weight was 4.3±0.9 kg [Mean±Standard Deviation (SD)]. In the C group, the mean age was 9yr (range, 3-12 yr) and the body weight was 4.4±0.8 kg [Mean±Standard Deviation (SD)]. All animals completed the investigation. No adverse systemic effects were observed under the treatment based on clinical conditions and clinical pathology evaluation.

No significant differences were found between T and C groups at day 0 for hematochemical and biochemical analyses (Table 1-2).

Table 1: Hematochemical analyses: hematocrit (HT), hemoglobin (HG), red blood cells (RBC), white blood cells (WBC), neutrophils (N), eosinophils (EO), lymphocytes (LYM) data are expressed as median (minimum and maximum); (a) indicate significant differences (P<0.05); (b) indicate significant differences (P<0.05) among experimental times within each group.

    HT HG RBC WBC N EO LYM
C group Range 26-45% 8-15 g/dl 5-10 106mm3 5.5-19 106mm3 2.5-12 106mm3 0- 1.5 106mm3 1.5-7 106mm3
T0   36,5 13,35 7,05 22,25 14,5 1,6 2,75
    (31,5-49,5) (11,5-17,8) (6,3-8,6) (17,6-27,4) (11,3-19,5) (0,6-2,2) (1,2-3,9)
T30   32,15 11,7 6,3 33,15 20,8 1,2 2,4
    (32,15-45,2) (10,3-16) (5,9-8,2) (33,15-34,7) (20,8-27,8) (1,1-1,7) (2,4-4,5)
T90   34,95 12,75 6,5 18,3 11,4 1,35 2,5
    (28,1-43,7) (11-15,5) (6-7,8) (10,8-26,8) (6,6-16,8) (0,8-1,9) (1,3-3,9)
    HT HG RBC WBC N EO LYM
C group Range 26-45% 8-15 g/dl 5-10 106mm3 5.5-19 106mm3 2.5-12 106mm3 0- 1.5 106mm3 1.5-7 106mm3
T0   35,35 11,5 6,7 23,6 17,5 0,95 1,65
    (27,5-54,4) (10,3-16,9) (5,9-10,5) (12,9-32,9) (7,7-27,9) (0,7-1,6) (0,7-3,1)
T30   34,3 11,8 6,45 19 12,8 1,3-5 2,3
    (31,2-48,4) (9,5-16,5) (6,1-8,9) (14,9-29,9) (8,6-19,7) (0,6-1,7) (1,4-3,7)
T90   38,85 13,5 7,4 13,25 a, b 9 a, b 1,4 1,9-5
    (32,2-44,2) (10,3-16,1) (5,9-8,6) (9,3-15,3) (6,4-9,8) (0,9-2,1) (1,1-2,6)

Table 2: Biochemical analyses: creatinine (CREA), blood urea nitrogen (BUN), phosphorus (P), total proteins (TP), albumins (ALB), albumin/globulin (A/G) ratio, glucose (GLU), alanine transaminases (ALT) alanine aminotransferases (AST), alkaline phosphatases (ALP), Gamma-glutamyl transferase (GGT), bilirubin (BIL) and cholesterol (CHOL) data are expressed as median (minimum and maximum); ( a) indicate significant differences (P<0.05); (b) indicate significant differences (P<0.05) among experimental times within each group.

    BUN CREA TP ALB A/G CHOL BIL GLU ALT AST ALP GGT
C group range 20-50 0,5-2mg/dl 6-8mg/dl 2,2-3,5mg/dl 0,8-1,3mg/dl 70-150mg/dl 0-0,5mg/dl 60-120mg/dl 7-40Ul/It 7-40Ul/It 7-50Ul/It 0-10
  mg/dl Ul/It
    31,5 1,2 7,3 3,25 0,95 66,5 3,45 132 213 130,5 220 18,5
T0 (21-54) (0,9-1,5) (5,6-8,6) (2,7-4,2) (0,7-1) (43-100) (1,9-4,9) (56-210) (118-339) (66-262) (181-421) (12-35)
    27,5 1,25 6,9 2,95 0,9 56 4,4 107,5 349,5 185,5 362,5 28
T15 (18-46) (0,90-1,99 (5,5-8,6) (2,50-3,9) (0,70-1) (44-86) (2,20-7,5) (69-157) (165-571) (121-379) (247-644) (12-45)
    31,5 1,25 6,75 3 0,9 65,5 4 94 319,5 159,5 494 26,5
T30 (31-53) (1,2-1,9) (6,7-58,2) (2,5-3,8) (0,8-1) (47-94) (1,60-8,8) (87-110) (133-550) (89-277) (237-683) (13-34)
    30 1,3 6,55 3 0,9 82,5 3,4 93 253,5 131,5 436 22,5
T60 (23-44) (1,1-1,5) (6-8,1) (2,8-3,8) (0,8-1) (48-93) (1,1-8) (77-129) (102-573) (105-238) (215-695) (11-35)
    29,5 1,25 6,7 3,1 0,9 72,5 2,2 90 226 114,5 442,5 15,5
T90 (21-55) (1,1-1,6) (5,9-7,8) (2,8-3,6) (0,9-1) (55-104) (1-6,1) (80-126) (82-551) (74-234) (184-620) (11-28)
    BUN CREA TP ALB A/G CHOL BIL GLU ALT AST ALP GGT
T group range 20-50 0,5-2mg/dl 6-8mg/dl 2,2-3,5mg/dl 0,8-1,3mg/dl 70-150mg/dl 0-0,5mg/dl 60-120mg/dl 7-40Ul/It 7-40Ul/It 7-50Ul/It 0-10
  mg/dl Ul/It
    34,5 1,25 7,45 3,4 0,95 51,5 3,6 82,5 218,5 161,5 211 15,5
T0 (12-88) (0,8-1,8) (6,5-9,2) (3,2-4,4) (0,7-1) (32-109) (2,3-8,4) (66-229) (94-439) (87-451) (155-553) (9-25)
    35 1,4 7,35 3,1 0,9 55 5,1 91 334 198 291 14,5
T15 (15-67) (0,91,9) (6,28,8) (2,84) (0,7-1) (33-93) (1,87,3) (69-167) (177-488) 88-329) (201-893) (8-34)
    34 1,3 7,45 3,45 0,9 69 3,2 a 94,5 232 165,5 373,5 12,5 a
T30 (15-53) (1,1-1,9) (6,5-8,4) (2,8-3,8) (0,8-1) (29-128) (1-5,1) (83-115) (102-449) 84-429) (119-480) (8-24)
    37 1,3 7,4 3,45 0,9 76,5 1,6 a 99 166,5 117 273 12:00
T60 AM
  (16-55) (1,1-1,8) (6,3-8,3) (3-3,6) (0,8-1) (18-110) (0,9-2,9) (89-128) (67-452) 45-381) (98-373) (7-19)
    32 1,25 7,4 3,7 1 99,5 0,7 a, b 92,5 82,5 a, b 74 b 188 a 9 a, b
T90 (13-43) (0,9-1,7) (6,9-7,9) (3,1-3,7) (0,9-1) (43-122) (0,3-2,1) (81-105) (32-231) (34-238) (78-290) (6-13)

Comparing the CBC results between the two groups, a statistically significant reduction was found in the number of circulating neutrophils and leukocytes in the blood at T90 (p<0.05). Biochemical analysis revealed that ALP and ALT were lower in the T group than in the C group at T90 (p<0.05). Bilirubin and GGT at T30 and T90 were lower in the T group than in the C group (p<0.05).

In the T group, CBC results underlined significant differences between neutrophils and leukocytes at T90 compared to T0 (P<0.05). Bilirubin, ALT, AST, GGT and d-ROMs values significantly decreased at T90 compared to T0 (P<0.05). In the same group BAP levels significantly increased at the end of the treatment (P<0.05).

Discussion

The purpose of this study is to determine whether the administration of fermented methionine associated with Silibinin has a hepatoprotective activity in cats with neutrophilic cholangitis.

Our haematological and serum biochemical results can be considered typical for neutrophilic cholangitis disease cases. For example, common serum biochemistry findings in our samples were: increased activities of ALT, ALP, AST and increased concentration of total bilirubin and GGT [11]. Interestingly, these biochemical markers of hepatic injury showed a significant decrease following fermented methionine and Silibinin administration.

The d-ROMs test performed to obtain the ROS level in our cats has been already used for testing samples from several animal species, including mammalians [12,13,14,10]. Although no data on cats has been published yet, some authors believe that reference values for dogs could be used for cats as well [15,10]. In our study, at the beginning of the treatment, animals in group T showed a high ROS level that significally decreased at the end of the treatment. The high ROS level could be justified by an increased production of oxidant species and/ or a decreased efficacy of the antioxidant system, while the decrease of ROS level could be due to the efficacy of our formulation.

Additionally, it has been demonstrated that the concentration of glutathione, an important endogenous antioxidant, is significantly lower in livers of cats with naturally occurring hepatic disease compared with healthy cats [16].

In our study, we used a formulation composed of two products with different effects on glutathione but unfortunately the level of glutathione did not detected in animals.

The first product, the fermented methionine, has cytoprotective activities including: augmentation of hepatocyteglutathione levels, improvement in membrane fluidity, modification of cytokine expression, alterations in DNA/histone methylation, and modulation of apoptosis [17]. The second one, the Silymarin, induces hepatic synthesis of glutathione by increasing cysteine availability [18]. This effect could be considered as a potential antioxidant mechanism in addition to the radical scavenging. Experiments in vitro showed how the combination of SAMe and Silymarin could be used for liver health support. These tests were also performed to study the characterization of the biological activity of this combination of products. Unfortunately, little is known about the combined effects of SAMe and Silymarin in vivo [19]. In literature, only a few studies investigated the actions of SAMe and Silymarin in cats but none of them reported their use in association [20, 21, 22]. The two products seem to protect hepatic cells from the typical effects of oxidative stress and damage that usually follow cholangitis. Furthermore, it is relevant to underline that the anti-inflammatory properties of our formulation were confirmed by the decrease in number of neutrophils and leukocytes in the T group at the end of the treatment.

Conclusions

These findings suggest that the formulation based on fermented methionine and Silibinin has two relevant effects on the defence systems of hepatocytes in cats with neutrophilic cholangitis, specifically, it acts against oxidative stress and inflammation. Further investigations are ongoing to confirm these preliminary results.

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Vinod V Potdar*, Bhave K, Gaundare YS, Khadse JR, and Pande AB


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Performances of Cold-Set Binders, Food Hydrocolloids, and Commercial Meat Binder on the Physical and Chemical Characteristics of Tilapia Fish Balls

The overall objective of this study is to determine the effect of hydrocolloid additives in reformed fish products and to compare the performances by testing chemical and physical properties of the restructured samples. There are nine treatments in this study including control samples. The eight types of meat binders include cornstarch, commercial meat-binder, carrageen an, methylcellulose, Activa® RM, plasma powder FG+, plasma powder FG and sodium alginate. The results showed that Activa® RM and FG+ and FG could provide satisfactory binding properties in fish balls. There was no significant difference among all cooked samples moisture (p<0.05). Raw treatments had slightly higher moisture than cooked treatments. Samples treated with Activa® RM had the highest WHC for cooked samples, while methylcellulose had the lowest WHC and cooking yield. All other binder treatments samples had higher cooking yield than that of the control. Samples treated with sodium alginate had the lowest pH values for both cooked and raw samples. There were no significant differences detected for water activity for both raw and cooked samples. Samples treated with Activa® RM, FG+ and FG treated samples had the best puncture, texture, hardness, springiness. In summary, Activa® RM, FG+ and FG treatments performed well for all parameters, and sodium alginate, methylcellulose, and meat binder treatment did not show advantages when compared with the control.

Huisuo Huang and Andrew D Clarke*


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Syncytiovascular Membranes in the Octodon Degus Placental Barrier: Morphological Evidence

Previous data indicates that placentation in the caviomorph rodent O. degus is similar to that in humans, regarding the migration of the Extra Sub Placental-Trophoblast (EST) to the uterine arteries to be remodeling. The aim of this paper was to determine the ultra structural morphological organization of the degu´s placental barrier, as part of a wider effort to understand their reproductive biology.

Four pregnant female Degus at 86 days of gestation, and their placentas were processed for histological analysis at electron microscopy levels. Our results demonstrate that at the pregnancy term, the placental barrier shows zone with presence of syncytial knots (defined as clusters of syncytiotrophoblast nuclei) in the fine syncytium or syncytiotrophoblast, zone with apoptotic knots evidenced by the accumulation of fragmented nuclei or apoptotic bodies with condensed chromatin, and the presence of zones with Syncytiovascular membranes (alpha zone). These Syncytiovascular membranes facilitate the exchange of metabolites between mother and fetus, and are exclusively observed in thin placental barrier zones where the syncytiotrophoblast nuclei are excluded. The presence of these Syncytiovascular membranes allowed us to conclude that they were formed as a consequence of the deportation of apoptotic bodies to the maternal blood, such as occurs in chinchilla, other caviomorph rodent. On the other hand, in human placental barrier several investigators have found that the syncytial apoptotic cascade is complete when apoptotic nuclei are deported to the maternal blood circulation and subsequently removed in the mother´s lung. Therefore, we concluded that the degu and human placentas share a number of structural and functional characteristics and this fact allows us to consider the degu as a potential animal model for studies related to human placental pathologies.

Bosco Cleofina* and Díaz Eugenia


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The Impact of Extension Programs to Increase the Productivity of the Small-Holder Dairyfarming Industry of Pakistan

Dairy farming operations with small animal numbers producing low volumes of around three litres per animal per day predominate in Pakistan’s dairy industry. Although much of this is consumed domestically, many farmers sell small volumes into traditional milk marketing chains which feed the product into urban retail outlets. Analysis of these marketing chains show that these farmers make a loss on every litre sold, while at the other end milk available to the consumer is of poor quality and often diluted as much as 1:2 with water. Small incremental profit margins are achieved by dilution and the use of distorted volume measures as the product is passed from small dealers to larger distributors and then to retail outlets. It is important that farmers are able to improve the efficiency of production by boosting the productivity of animals. This can be achieved through the adoption of better nutrition and animal husbandry practices. At the same time small scale local marketing chains require refinement to ensure profits generated from milk production stay with local communities. This paper reports on the development of effective extension strategies involving the whole family including the farmer, his wife and children. They have led to significant improvements in the profitability of small-holder dairy farming and a growing awareness of farmers of the commercial potential for their household cows and buffalo. The sustainability of these small-holder production systems in the face of changing consumer demands for higher quality products and world dairy product trade remains to be seen.

Wynn PC¹,²*, McGill DM², Aslam N¹, Tufail S¹, Latif S¹, Ishaq M³, Batool Z³, Bush RD⁴, Warriach HM²,³, and Godfrey SS¹


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Effect of Hops (Humulus lupulus) Supplementation on Growth Performance of Broiler Chickens

The hop plant contains flavonoids, bitter acids and essential oils that confer antibacterial properties. An experiment was conducted to evaluate the possibility of supplementing broiler chicken diets with hop pellets. Accordingly, growth performance response of broiler chickens given hops-supplemented diets was evaluated in a 49-day floor-pen trial. Day-old (320) male broiler chicks were commercially obtained and randomly assigned to 4 treatments. Treatment 1 (CX) consisted of chicks fed unmedicated corn-Soybean Meal (SBM) diet without hops pellets added. Treatment 2 (MX) consisted of chicks fed corn-SBM basal into which Bacitracin Methylene Disalicylate (BMD) was added at 0.055g/kg. Treatment 3 (HL) consisted of chicks fed corn-SBM basal into which hops pellets were added at 1.0 % level. Treatment 4 (HH) consisted of chicks fed corn-SBM basal into which hops pellets were added at 2.0 % level. On d 21, 42, and 49, body weight, body weight gain, and Feed Conversion Ratio (FCR) were evaluated. Transient benefits of hops supplementation in form of higher feed intake and body weight gain (P < 0.05) compared to other treatments were observed but were not sustained. The FCR of birds in the hops-supplemented treatments (HL and HH) were similar (P > 0.05) to those of birds in the BMD antibioticsupplemented treatment (MX) throughout the study. It was concluded that supplementation of hops pellets into broiler diets at 1% or 2% level of the diet had no detrimental effect on broiler growth performance. Therefore, future studies should be conducted to evaluate the efficacy of dietary hops in mitigating the colonization of poultry intestine by economically important zoonotic and/or disease pathogens.

Fasina YO* and Akinola OO


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Survey on Farmers Husbandry Practice for Dairy Cows in Alefa and Quara Districts of North Gondar Zone, Amhara National Regional State, Ethiopia

The aim of the study was to describe the dairy cow’s husbandry practice of farmers in Alefa and Quara districts of North Gondar Zone Amhara National Regional State Ethiopia. Three Kebeles from each district, a total of six Kebeles were selected through purposive sampling procedure. Finally, 376 households (208 households from Quara and 168 households from Alefa) who had at least one lactating cow were selected through systematic random sampling procedure. Data were collected by using structured questionnaire and the collected data were analyzed by using statistical package for social science (SPSS Version 20). The main source of feed for Alefa district was, crop residue and private grazing land (36.7%), crop residue, communal and private grazing land (41.4%), while for Quara district, communal grazing land (49.8%) and private, communal and crop residue (39.6%)were the main feed sources. In respective order, about 70.8 and 81.3% of respondents for Alefa and Quara districts were confirmed that river water was the main source for dairy cows. Housing system in Alefa district was simple shied adjacent to farmer’s house (97.6%), but in Quara district, it was barn system (95.2%). Trypanosomiasis (58.7%), Lumpy skin disease (18.8%) and Babesiosis (8.7%) was the most challenging livestock disease in Quara district, while in Alefa district Blackleg (30.5%), Lumpy skin disease (21%) and Trypanosomiasis (20.4%) was challenging disease. The major livestock production constraint in Quara district was feed and disease with the same indices value of 0.32 and Water 0.20 were observed. Similarly, feed followed by disease was the major constraint in Alefa district with index value of 0.5 and 0.2, respectively.

Bernabas Ayeneshet¹*, Zewdu Wondifraw², and Michael Abera²


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Production Objectives, Breeding Practices and Rate of Inbreeding in Dairy Cows at Alefa and Quara Districts of North Gondar Zone, Amhara National Regional State, Ethiopia

The aim of this study was to identify breeding practice, production objectives, selection and culling criterias of farmers for dairy cows in Alefa and Quara districts of North Gondar Zone Amhara National Regional State Ethiopia. 376 households (208 households from Quara and 168 households from Alefa) were selected by using systematic sampling procedure. Data were collected by using structured questionnaire and the collected data were analyzed by using statistical package for social science (SPSS Version 20). The main production objectives of farmers in Quara district were for milk production (0.43), draught purpose (0.32), and selling purpose (0.2). While in Alefa district it was 0.34, 0.36 and 0.27 for milk production, draught and selling purpose respectively. The main selection criteria for dam and sire in both districts were reproductive performance, body conformation and coat color. Most farmers in both districts were decided to cull the herd when they showed long AFS with index value of (0.38) and (0.3) for Quara and Alefa districts, respectively. About 208 (100%) of respondents in Quara were using natural breeding system. While bout 148 (88.1%), 11 (6.5%) and 9 (5.4%) of respondents in Alefa district were used natural, both natural and AI technology and AI only, respectively. About 44.4, 25, 23.2, and 7.7% of respondents in Alefa district were used breeding bull from a neighbor, communal grazing land, own and rent bull, respectively. While the majority (47.1%) of respondents in Quara district were used own bull. Under uncontrolled random mating effective population size and rate of inbreeding for Quara district was 9.0 and 0.05, respectively. While for Alefa district it was 3.2 and 0.15, respectively.

Bernabas Ayeneshet¹*, Zewdu Wondifraw², and Michael Abera²