scholarly journals Long-Acting Moxidectin for the Control of Gastrointestinal Nematodes in Preweaned Beef Calves in Tropical Areas

2021 ◽  
Vol 9 (4) ◽  
pp. 1
Author(s):  
Guilherme Henrique Reckziegel ◽  
Mario Henrique Conde ◽  
Mariana Green de Freitas ◽  
Matheus Takemi Muchon Nakatani ◽  
Dyego Gonçalves Lino Borges ◽  
...  
Keyword(s):  
Placebo Group ◽  
Weight Gain ◽  
Anthelmintic Resistance ◽  
Block Design ◽  
Live Weight ◽  
Control Program ◽  
Gastrointestinal Nematodes ◽  
Effective Control ◽  
Beef Calves ◽  
Second Stage

Gastrointestinal nematodes (GINs) in beef calves in the preweaning period can be an underestimated problem, and an adequate control program can result in increased productivity. In the current scenario of anthelmintic resistance, clinical studies with highly effective molecules with a prolonged period of action can contribute to the development of technologies applied in the field. The objective of this study was to evaluate the effects of a 10% moxidectin formulation (10%MOX), administered to calves aged 4–5 months, in the control of gastrointestinal nematodes and weight gain until the time of weaning. The study was divided into 2 stages. The first stage was carried out on a farm, with a randomized block design based on fecal egg counts (FEC), live weight, number of calvings of the mother, breed of the calves, and pickets. In the second stage, the study was repeated on 10 other farms, following a completely randomized design, to confirm the results obtained in the first stage. In all experiments there was a treated group and a placebo group. In the first stage, the effectiveness of 10%MOX in the FECRT performed on the 38th day post-treatment was 98.49%, and the treated animals still had lower FEC averages and a 9.4 kg increase in weight at weaning compared to those from the placebo group. In the second stage, the average increase in weight gain was 6.1 kg, confirming the results of the first stage. The study demonstrated effective control of GINs and improvement in the productive performance of calves treated in the preweaning phase, using 10% moxidectin.

scholarly journals Performance and intestinal development of chicks submitted to different rations and different types of incubation

2021 ◽  
Vol 15 (2) ◽  
pp. 154-161
Author(s):  
Eliete Souza Santana ◽  
José Neto Cassiano de Camargo ◽  
Michele Laboissière ◽  
Roberto Moraes Jardim Filho
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Block Design ◽  
Phase 1 ◽  
Live Weight ◽  
Experimental Unit ◽  
Average Weight ◽  
Intestinal Development ◽  
Feed Conversion ◽  
Feed Processing

The objective of this work was to evaluate the effects of two types of incubation and two types of feeding on the performance of chickens and intestinal development of chicks during the pre-starter phase (1 to 7 days of age). One-year-old male Ross® chicks were used. The experimental design was a randomized complete block design, in a 2x2 factorial design, with two types of feed processing (bran and micropelleted) and two types of incubation machines (single and multiple stage), totaling four treatments, with four treatment repetitions each. Twelve birds per experimental unit were used, totaling 192 animals. Performance evaluations were conducted, such as mean weight, weight gain, feed intake, feed conversion, bowel weight and size, and percentage of intestine in relation to live weight. Histomorphometric tests on the height of the villi and depth of the duodenal crypts were also performed. The two incubation machines did not influence any of the analyzed variables. Even though both had the same composition, the micropelleted feed resulted in positive gains for the performance variables: average weight, weight gain, feed intake, and feed conversion when compared to the meal, but was unable to significantly influence the morphometric measurements of the duodenum of chicks in the pre-starter phase.

scholarly journals Effect of feeding urea-molasses blocks with incorporated fenbendazole on grazing dairy heifers naturally infected with gastrointestinal nematodes

2003 ◽  
Vol 74 (2) ◽  
Author(s):  
R.M. Waruiru ◽  
C.O. Onyando ◽  
R.O. Machuka
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Experimental Period ◽  
Gastrointestinal Nematodes ◽  
Group Iii ◽  
Dairy Heifers ◽  
Helminth Infections ◽  
Group I ◽  
Body Weights ◽  
The Mean

Between June 1999 and August 2000, the effects of feeding medicated urea-molasses supplement blocks on the growth of dairy heifers in a marginal area of central Kenya were assessed by comparing the live-weight gain of supplemented and unsupplemented heifers grazing the same pasture. Thirty-nine heifers with an average age of 9.6 months were initially treated orally with albendazole (10 mg / kg body weight) and assigned to 3 groups : group I was fed urea-molasses blocks with incorporated fenbendazole (MUMB), group II was fed urea-molasses blocks (UMB) and group III heifers (control) received no block supplementation (NBS). Body weights of the heifers and faecal egg counts (FECs) were measured monthly and larval cultures were made of positive faecal samples of each group. The mean cumulative live-weight responses of the MUMB and UMB groups were significantly greater than the NBS group (P < 0.05). However, at the end of the experimental period, the mean weight gain of the MUMB group did not differ from that of the UMB group (P >0.05). The FECs were moderate to low in all groups and decreased progressively with increasing age of the animals; FECs for the urea-molasses-supplemented groups remained significantly lower than those of the NBS group throughout the experimental period (P <0.05). Haemonchus and Trichostrongylus were the predominant nematode genera found in the heifers, but Cooperia, Bunostomum and Oesophagostomum were also present. These results indicate that feeding of urea-molasses blocks substantially reduced production losses attributable to nematode infection of young grazing cattle, and confirms previous observations that well-fed animals are better able to overcome the effects of helminth infections.

Diets with chemically treated straw for beef steers: effects of rapidly fermentable carbohydrate on food utilization, growth and bacterial cellulolysis

1986 ◽  
Vol 42 (3) ◽  
pp. 327-336 ◽  
Author(s):  
P. E. V. Williams ◽  
C. S. Stewart ◽  
A. Macdearmid ◽  
A. Brewer
Keyword(s):  
Weight Gain ◽  
Food Intake ◽  
Sodium Hydroxide ◽  
Rumen Fluid ◽  
Block Design ◽  
Live Weight ◽  
Food Utilization ◽  
Cellulolytic Bacteria ◽  
Randomized Block Design ◽  
Weight Gains

ABSTRACTThe effects of level of supplemental carbohydrate from turnips and level of rumen degradable nitrogen on bacterial cellulolysis, food intake, live-weight gain and diet digestibility were examined with 36 300-kg Friesian steers allocated, in a randomized-block design, to one of six dietary treatments: (i) sodium hydroxide treated straw plus a supplement of urea (30 g urea per kg straw dry matter (DM)) (uO); (ii) uOplus turnips (23·5 g DM per kg M0·75); (Hi) uOplus a high level of turnips (47 g DM per kg M0·75); (iv) (v) and (vi), the same three diets, but with additional urea (60 g urea per kg straw DM). In two separate experiments each lasting for 56 days, the turnip allowance was given in either two feeds, or one feed per day and the straw was given to appetite. Rumen fluid was obtained by stomach tube from all steers before feeding (07·30 h) and after feeding (11.00 h) on days 10 and 24 of each experiment.Weight gains for all groups given straw plus turnips were high (> 0·90 kg/day). Increasing the quantity of turnips gave significantly increased DM intakes and weight gains but then turnips substituted for straw, and the proportion of straw consumed decreased from 0·8 to 0·6 of the dietary DM (P< 0·01) There were no significant interactions between frequency of feeding of turnips and level of urea on the variables food intake and weight gain. Fibre digestibility was not depressed by the addition of turnips to the diet. Rumen fluid pH decreased after the steers ate turnips but tended to remain above 6·7. There were no large changes in the total number of viable cellulolytic bacteria as a result of either addition of urea or turnips to the diet; counts remained in the order of 107 per ml. Steers consumed large quantities of sodium hydroxide treated straw; turnips were therefore only a small proportion of the overall DM intake with relatively little effect on bacterial cellulolysis.

scholarly journals Analysis of the productive and immune response of lambs infected with gastrointestinal nematodes and fed with saccharin

2021 ◽  
Vol 14 (2) ◽  
Author(s):  
Roberto González-Garduño ◽  
Luis Matias Silva-Torres ◽  
Glafiro Torres-Hernández ◽  
María Eugenia López-Arellano ◽  
Ever del Jesus Flores-Santiago ◽  
...  
Keyword(s):  
Immune Response ◽  
Repeated Measures ◽  
Anthelmintic Resistance ◽  
Live Weight ◽  
Basal Diet ◽  
Gastrointestinal Nematodes ◽  
Anthelmintic Treatment ◽  
Mean Values ◽  
Randomized Design ◽  
Feedlot Lambs

Objective: Determine the productive and immune response of Blackbelly lambs infectedwith gastrointestinal nematodes (GIN) and fed with saccharin.Design/ methodology/ approach: A total of 18 Blackbelly lambs, with an initial live weight (LW) of 13.9 + 3.2 kg, were randomly assigned to three different treatments (T): T1, anthelmintic treatment + basal diet (CTah); T2, basal diet without anthelmintic treatment (STah); and T3, grazing lambs without anthelmintic treatment (STPS). This experiment followed a completely randomized design with repeated measures over time; mean values were compared using Lsmeans. The parameters evaluated included live weight (LW), fecal egg count per gram (FEC), packed-cell volume (PCV), plasma protein (PP), white blood celldifferential count (LEU), and IgA concentration by ELISA with Haemonchus contortusand Trichostrongylus colubriformis antigens.Results: STah and CTah lambs showed higher FEC (885 ± 142) and LW (29.73 ± 5.06kg). Grazing lambs (STPS) had lower PCV (26.4 ± 0.5%) compared to the STah andCTah lambs (27.4 to 28.4%) due to the high prevalence of H. contortus. The IgAconcentration in grazing lambs ranged from 20.2 to 24.5% of the positive standardserum titer. The feedlot lambs (STah and CTah) showed values close to 5%.Study limitations/ implications: Due to anthelmintic resistance problems, it wasimpossible to maintain grazing lambs free of infection; therefore, this group was notincluded.Findings/ conclusions: Saccharin increases sheep resilience and achieves adequateweight gains in parasitized lambs.

scholarly journals Performance of Holstein heifers fed sugarcane silages treated with urea, sodium benzoate or Lactobacillus buchneri

2006 ◽  
Vol 41 (4) ◽  
pp. 649-654 ◽  
Author(s):  
André de Faria Pedroso ◽  
Luiz Gustavo Nussio ◽  
Waldomiro Barioni Júnior ◽  
Armando de Andrade Rodrigues ◽  
Daniele Rebouças Santana Loures ◽  
...  
Keyword(s):  
Weight Gain ◽  
Sodium Benzoate ◽  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Live Weight ◽  
Feed Conversion ◽  
Lactobacillus Buchneri ◽  
The Cost ◽  
Daily Gain

The objective of this work was to evaluate the performance of heifers fed sugarcane silages produced with and without additives. Thirty-two Holstein heifers were randomly assigned, in a block design, to evaluate rations (46% silage; 54% concentrate; 12% crude protein) containing silages treated with (fresh basis) urea (0.5%), sodium benzoate (0.1%) or Lactobacillus buchneri (3.64x10(5) cfu g-1 ). Inoculation with L. buchneri improved daily gain (1.24 vs. 0.94 kg day-1 ), and the addition of benzoate resulted in better feed conversion (7.6 vs. 9.4 kg of dry matter per kg of live weight), in relation to the untreated silage (control). Treatments did not affect dry matter intake (mean of 2.19% of live weight). Rations containing silages treated with benzoate or L. buchneri showed lower cost per kg of weight gain. Treatment with urea did not improve animal performance, but the cost per kg of weight gain was lower than that of the control ration.

The effect of condensed tannins on Haemonchus contortus in sheep experimentally infected

2005 ◽  
Vol 2005 ◽  
pp. 139-139
Author(s):  
A. P. Minho ◽  
S. M. Gennari ◽  
A. L. Abdalla
Keyword(s):  
Weight Gain ◽  
Soft Tissue ◽  
Organic Agriculture ◽  
Haemonchus Contortus ◽  
Condensed Tannins ◽  
Anthelmintic Resistance ◽  
Live Weight ◽  
Parasite Infection ◽  
Skeletal Growth ◽  
Alternative Methods

Clinical and sub clinical parasite infection depresses live-weight gain, feed intake, milk and wool production and can impair soft tissue deposition and skeletal growth. To date these infections have been controlled using anthelmintics, however the increasing prevalence of multiple anthelmintic resistance points towards the urgent need for alternative methods to reduce our reliance upon chemoprophylaxis. In addition, the worldwide growth of organic agriculture, in which the use of synthetic products is strongly restricted, needs alternatives for helminthes control. The aim of this experiment was to evaluate the effect of dietary condensed tannins (CT) on Haemonchus contortus infection in sheep.

Effect of antihelminths with contrasting efficacy against gastrointestinal nematodes on the live-weight gain of young Nellore cattle

2021 ◽  
pp. 100597
Author(s):  
José Henrique das Neves ◽  
Nadino Carvalho ◽  
Nayara Capaldi dos Santos ◽  
João Ratti Júnior ◽  
Cyntia L. Martins ◽  
...  
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Gastrointestinal Nematodes ◽  
Live Weight Gain ◽  
Nellore Cattle

scholarly journals Performance and Economic Suitability of Three Fast Growing Broiler Strains Raised Under Farming Condition in Bangladesh

2013 ◽  
Vol 1 (1-2) ◽  
pp. 37-43 ◽  
Author(s):  
MA Hossain ◽  
KB Suvo ◽  
MM Islam
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Block Design ◽  
Live Weight ◽  
Farming System ◽  
Broiler Chicks ◽  
Strain Group ◽  
Treatment Groups ◽  
Randomized Block Design

The performance and profitability of three commercial broiler strains reared under farming system were investigated in this study. Day-old broiler chicks (n=156) of three different commercial strains (Hubbard classic, Cobb-500 and MPK) were assigned to three treatment groups in a completely randomized block design, each treatment replicated four times, 13 birds per replicate. The birds were reared from d1 to 35 days of age with similar housing, feeding and environmental management condition. Regarding to all parameters collected, live weight and body weight gain were higher (P<0.001) in T2(Cobb-500) group, while the birds of T3 (MPK) group were the lowest. Birds of T1(Hubbard Classic) and T2 (Cobb-500) strain group consumed higher (P<0.001) feeds, while the birds of T3(MPK) had the lowest feed intake. Cobb-500 broiler strain achieved superior (P<0.001) FCR, while the birds of T1 (Hubbard classic) strain group had poorer FCR. Liveability of the broiler strains was unaffected by all the treatment groups. Higher net profit and lower production cost observed in T2(Cobb-500) group than those of other strains, although the difference between the treatment groups was similar. The highly significant measurements of live body weight, weight gain and better FCR values were recorded for Cobb-500 broiler strain, followed by Hubbard classic and MPK, respectively. In conclusion, Cobb-500 broiler strain is appeared to be the most economic to rear amongst the three broiler strains investigated here in response to their performance records. DOI: http://dx.doi.org/10.3329/ijarit.v1i1-2.13931 Int. J. Agril. Res. Innov. & Tech. 1 (1&2): 37-43, December, 2011

scholarly journals Effect of levamisole on gastrointestinal nematodes and weight gain of grazing livestock in the municipality of San Jose Chiltepec, Oaxaca, Mexico

2021 ◽  
Author(s):  
Ulises Libreros-Osorio ◽  
Daniela Donaji Vázquez-Arrieta ◽  
Ilhuicamina Daniel Limón ◽  
Aleidy Patricio-Martínez ◽  
Felipe Patricio-Martínez
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Anthelmintic Resistance ◽  
Parasite Load ◽  
Gastrointestinal Nematodes ◽  
Post Treatment ◽  
The Body ◽  
Vehicle Group ◽  
San Jose ◽  
Pre Treatment

Abstract The aim of the present work was to study the effect of administration of levamisole on parasitic load of gastrointestinal nematodes (GIN) and the percentage of weight gain of grazing cattle. The animals were randomly distributed to form three experimental groups, levamisole, ivermectin and control. The collection of feces samples was carried out one day before and 15 days’ post-treatment and subsequently it was quantifying the eggs number per gram of feces. The body weight of the animals was recorded at days 0, 15, 30 and 45 after treatments to evaluate its gain. The results observed up to the final day (45 days’ post-treatment) showed the group treated with Ivermectin had a 10.1% increase in body weight, while the group under Levamisole treatment had an increase of 14.3%. The groups under ivermectin and levamisole showed a decrease in the number of eggs per grams of feces (EPG), which were measured 15 days after their treatment (22.5 EPG in ivermectin) and (55.0 EPG in levamisole) compared to the vehicle group (377.5 EPG) and pre-treatment (486.5 EPG). In the present work, it was possible to show that with two subcutaneous administrations of levamisole in grazing calves in the municipality of Chiltepec, Oaxaca, it’s possible to increase the weight in cattle while decreasing its parasite load of GIN. However, it is necessary to determine the anthelmintic resistance in farms that report the use of levamisole with different treatment and repeated doses of levamisole.

Sign in / Sign up

Export Citation Format

Share Document