MONENSINA E URÉIA DE LIBERAÇÃO LENTA NO DESEMPENHO DE BOVINOS CONFINADOS

O objetivo do presente experimento foi determinar os efeitos do ionóforo monensina (Rumensin ), uma fonte de uréia de liberação lenta (Anipro ) e sua associação em bovinos confinados. Foram utilizados 92 bovinos bloqueados por raça e peso e distribuídos aleatoriamente em quatro grupos: grupo controle (n=23); grupo Rumensin (n=25); grupo Anipro (n=23); e o grupo da associação de ambos (n=22). Os animais receberam dietas totais misturadas a base de silagem de milho, milho moído e caroço de algodão, contendo níveis iguais de energia (70% NDT) e proteína bruta (12%). Os dois grupos que receberam Anipro apresentaram ingestão alimentar significativamente menor do que os grupos controle e Rumensin , o que levou a ganho médio diário, peso final e peso de carcaça significativamente menores, porém sem efeito sobre conversão alimentar ou rendimento de carcaça. Não se observou qualquer efeito de Rumensin , possivelmente devido ao baixo nível de proteína bruta da dieta, ou também ao baixo nível de proteína verdadeira da dieta. Também não houve efeito significativo da interação entre os dois componentes. Monensin and slow-release urea on the performance of feedlot steers Abstract The objective of the present experiment was to determine the effects of the ionophore monensin (Rumensin ), a slow-release source of urea (Anipro ) and their association on feedlot cattle. A total of 92 steers were blocked by breed and weight and were randomly assigned to four groups: Control group (n=23); Rumensin group (n=25); Anipro group (n=23); and the association group (n=22). They received total mixed rations based on corn silage, ground corn and cottonseed, with equal levels of energy (70% TDN) and crude protein (12%). Both groups receiving Anipro showed a significantly lower feed intake, which led to significantly lower average daily gain, slaughter and carcass weight, with no effect on feed conversion and carcass yield. No effect of Rumensin was seen, possibly due to the low crude protein level of the diets, as well as the low level of true protein. There was also no significant effect on the interaction of the two components.

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The effects of zeranol and oestradiol implants on performance and nutrient digestibility of zero-grazed White Fulani cattle

Animal Production Science ◽

10.1071/an19050 ◽

2020 ◽

Vol 60 (8) ◽

pp. 1081

Author(s):

O. T. Soyelu ◽

A. O. Aderibigbe

Keyword(s):

Crude Protein ◽

Dry Matter ◽

Average Daily Gain ◽

Feedlot Cattle ◽

Nutrient Digestibility ◽

Apparent Digestibility ◽

Feed Conversion ◽

Mean Values ◽

Significant Difference ◽

White Fulani

Aim The aim of this study was to investigate the effects of two growth-promoting implants (zeranol and oestradiol-17β) on performance and feed digestibility of finishing White Fulani cattle in the feedlot. This was with a view to determining an alternative means of enhancing cattle performance without grazing the animals. Methods A 60-day feedlot trial was conducted using 27 stocker White Fulani bulls that were allotted randomly to three treatment groups (i.e. non-implanted, oestradiol-implanted and zeranol-implanted) in a completely randomised experimental design. Cattle were offered a compounded feedlot ration consisting of 14% crude protein ad libitum. The bulls were weighed initially and fortnightly thereafter for the duration of the study. Coefficients of dry matter and nutrients digestibility were determined using lignin as an internal marker. Data were analysed using the general linear model procedure of ANOVA and mean values were compared using Fisher’s least significant difference (l.s.d.0.05). Key results The average final liveweight, total weight gain, average daily gain (ADG) and average daily feed intake (ADFI) of implanted feedlot cattle were higher (P < 0.05) than for non-implanted cattle; and higher in oestradiol-implanted cattle compared with zeranol-implanted ones. The ADG was 29.16 and 20.48% higher, and the ADFI was 35.06 and 18.18% higher for oestradiol-implanted and zeranol-implanted feedlot cattle, respectively than for non-implanted cattle. Irrespective of the treatment, feed conversion ratio of experimental bulls remained below the range (4.5–7.5) established for feedlot beef cattle; an indication of better efficiency of feed utilisation by White Fulani cattle. The apparent digestibility of dry matter (59.76–64.31%) of the feedlot ration was in the order: non-implanted = oestradiol-implanted > zeranol-implanted while the apparent digestibility of crude protein (73.91–77.99%) was in the order: non-implanted > oestradiol-implanted = zeranol-implanted. Conclusions and implications The results of this study show that the use of an oestradiol implant in finishing zero-grazed White Fulani cattle was beneficial for improving growth performance. Both implanted and non-implanted cattle showed good coefficients of nutrient digestibility, indicating that the mode of action of the growth implants in enhancing performance characteristics does not depend on indices of digestibility.

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Influence of lecithin emulsifier on the utilisation of nutrients and growth of piglets after weaning

Czech Journal of Animal Science ◽

10.17221/4245-cjas ◽

2011 ◽

Vol 50 (No. 10) ◽

pp. 459-465 ◽

Cited By ~ 4

Author(s):

P. Daněk ◽

A. Paseka ◽

J. Smola ◽

J. Ondráček ◽

R. Bečková ◽

...

Keyword(s):

Crude Protein ◽

Average Daily Gain ◽

Experimental Period ◽

Control Group ◽

Feed Conversion ◽

Crude Fibre ◽

Nitrogen Free Extract ◽

Daily Gain ◽

Positive Effect ◽

Experimental Group

The influence of supplementation of a lecithin emulsifier (0.1%) to the feed mixture for piglets after weaning was studied. 16 piglets in the control group (C – without lecithin) and 16 piglets in an experimental (E) group were monitored in three replications in a 28-day experimental period. We observed higher digestibility of monitored nutrients in the experimental group (crude fat: C = 66.28 ± 12.11, E = 69.75 ± 9.85%, crude protein: C = 78.72 ± 5.47, E = 82.17 ± 2.23%, crude fibre: C = 56.70 ± 12.85, E = 59.10 ± 12.04%, nitrogen free extract: C = 86.67 ± 3.32, E = 87.75 ± 3.00%, ash: C = 63.63 ± 11.59, E = 65.73 ± 10.35%). Statistically insignificantly higher daily average gain (C = 374.1 ± 107.0, E = 399.1 ± 104.7 g) of experimental groups and a lower feed conversion ratio (C = 2.285 ± 0.416, E = 1.768 ± 0.048 kg/kg) were found out. It was also confirmed in an additional field experiment (C = 279, E = 312 piglets from birth to 71 days of age) where average daily gain weight was 270 g in control and 290 g in experimental group. The influence of lecithin on the occurrence of haemolytic strains of Escherichia coli was not proved. This experiment confirmed a positive effect of the lecithin emulsifier supplement on the efficiency of piglets.  

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Performance of growing and finishing cattle supplemented with a slow-rlease urea product and urea

Canadian Journal of Animal Science ◽

10.4141/a02-018 ◽

2002 ◽

Vol 82 (4) ◽

pp. 567-573 ◽

Cited By ~ 27

Author(s):

L. O. Tedeschi ◽

M. J. Baker ◽

D. J. Ketchen ◽

D. G. Fox

Keyword(s):

Slow Release ◽

System Modeling ◽

Average Daily Gain ◽

Corn Silage ◽

Animal Performance ◽

Feed Conversion ◽

Protein Nitrogen ◽

Protein System ◽

N Deficiency ◽

Slow Release Urea

Two growth trials were conducted to study the performance of Angus Crossbred steers supplemented with a slow-release urea product (Optigen® 1200, O) and urea (U). The base diets were composed of corn silage alone during the growth period and corn silage plus cracked corn during the finishing period. Trial 1 consisted of 40 animals [272 ± 4 kg body weight (BW)] individually fed the base diets and six treatments, which were based on corn silage alone and cracked corn supplemented with U or O to supply 50 (U50, O50) or 100% (U100, O100) of the ruminal N deficiency (U50, O50, U100, and O100) as predicted by the Cornell Net Carbohydrate and Protein System (CNCPS), or with U and O each supplying half of the CNCPS predicted N deficiency (U25O25). In trial 2, 120 pen-fed animals (241 ± 7 kg BW) received the base diets and four combinations of U and O ( U100O0, U66O34, U34O66, and U0O100), which were designed to supply 100% of the ruminal N deficiency predicted by the CNCPS. In trial 1, no differences (P > 0.05) in performance were observed between the U100 and O100 treatments, but animals in the U50 treatment had a greater average daily gain (ADG) (P < 0.05) and feed conversion (P < 0.05) than animals on O50 treatment. In trial 2, combinations of U and O did not affect animal performance (P > 0.05). No differences were observed in carcass characteristics and predicted carcass and empty body fat for both trials (P > 0.05). We concluded there was no improvement in animal performance when urea was substituted by a slow-release urea/NH3 product at levels normally found in feedlot cattle diets. Key words: Cornell net carbohydrate and protein system, modeling, nutrition, growth, non-protein nitrogen

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The effect of fish meal in the nutrition of weaned piglets

Biotechnology in Animal Husbandry ◽

10.2298/bah2103195z ◽

2021 ◽

Vol 37 (3) ◽

pp. 195-202

Author(s):

Vladimir Zivkovic ◽

Cedomir Radovic ◽

Marija Gogic ◽

Nenad Stojiljkovic ◽

Sasa Obradovic ◽

...

Keyword(s):

Crude Protein ◽

Fish Meal ◽

Average Daily Gain ◽

Control Group ◽

Feed Conversion ◽

Weaned Piglets ◽

Large White ◽

Weaning Piglets ◽

Second Period ◽

Daily Gain

The effects of the use of fish meal in the nutrition of weaning piglets were observed. The trial included 80 weaned piglets of the same genotype (Large White x Danish Landrace) distributed in two feeding treatments. In the first period of the experiment, animals were fed during 10 feeding days, with a prestarter mixture containing 21.1/20.8% of the crude protein. The second period lasted for 25 days and piglets were fed with mixture containing also 21.0/21.1% of the crude protein. And in the final period of the experiment, which lasted 22 feeding days, the meals were formulated to contain 19.5/19.9% of the crude protein. The control group was fed with standard farm mixtures, while the trial group were fed with mixtures containing 4/3/2% of fish meal. The obtained results showed that the use of fish meal resulted in better average daily gain and feed conversion in starter period (27-51 day).

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Verification of nutritive value and hypocholesterolemic effect of spring barley lines in rats

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun200452050123 ◽

2004 ◽

Vol 52 (5) ◽

pp. 123-130

Author(s):

Sylva Pipalová ◽

Jiřina Procházková ◽

Jaroslava Ehrenbergerová ◽

Kateřina Vaculová

Keyword(s):

Crude Protein ◽

Nutritive Value ◽

Spring Barley ◽

Average Daily Gain ◽

Food Type ◽

Control Group ◽

Hypocholesterolemic Effect ◽

Feed Conversion ◽

Crude Fibre ◽

Daily Gain

The aim of a growth model experiment in laboratory rats was to check the nutritive value of the set of newly bred spring barley lines with different grain characteristics. The followed set contained feed type hulless lines bred in the Agricultural Research Institute Kroměříž , Ltd. KM1771 (1), KM 1057 (2), food type hulless lines KM 2082 (3), KM 2092 (4), KM 2062 (5) and lines formed on the basis of crossing with food donors of a waxy endosperm type – hulless line Wabet x Washonubet (6), hulled line Wabet x Krona (7) and Wabet x Kompakt (8). The line Kompakt x Krona (9) and the malting variety Nordus were used as a control (10).The best results of an average daily gain and feed conversion ratio (FCR) (9.19 g; 2.29) were achieved by feeding the line KM 1057 (2), conversely, the worst by feeding food barley of the waxy type (average daily gain in animals of experimental group 6 was only 8.01 g and FCR 2.54). This material also had the highest β-glucan content (7.1 %) out of the followed set. The lowest β-glucan content was detected in the sample 9 (3.88 %). Linear dependence between intake of β-glucans (x) and cholesterol content in rat´s blood (y) was: y = -0.0591x + 3.8102, R2 = 0.4681. The found dependence was statistically highly significant (PThe highest values of digestibility coefficients of crude protein (75.96 %) and crude fibre (49.63 %) were measured in animals in a group 2, on the contrary the lowest digestibility of crude fibre (31.10 %), fat (56.96 %) and ash (45.65 %) was exhibited by a control group 10. Differences in digestibility of all followed nutrients after the 14th day and at the end (28th day) of the experiment were observed (crude protein digestibility was lower by 5.65 %, ash digestibility by 11.47 %, fibre by 10.85 % and fat by 3.75 %).It was confirmed that the tested waxy lines exhibited hypocholesterolemic effect; we, however, do not recommend them for feeding of monogastric animals due to high β-glucan content, reduced intake of mixture and impaired feed conversion.

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Effect of BioPlus YC Probiotic Supplementation on Gut Microbiota, Production Performance, Carcass and Meat Quality of Pigs

Animals ◽

10.3390/ani11061581 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1581

Author(s):

Artur Rybarczyk ◽

Elżbieta Bogusławska-Wąs ◽

Alicja Dłubała

Keyword(s):

Bacillus Subtilis ◽

Meat Quality ◽

Bacillus Licheniformis ◽

Average Daily Gain ◽

Production Performance ◽

Probiotic Bacteria ◽

Control Group ◽

Production Traits ◽

Feed Conversion

The objective of the study was to determine the effects of probiotic bacteria Bacillus licheniformis and Bacillus subtilis on microbiological properties of feed mixtures and on the digestive tract content as applicable to production traits and carcass characteristics of fatteners. The experiment was performed on 83,838 fatteners from four successive (insertions) productions in two groups. From the seventy eighth day of age till marketing to the slaughter plant, the pigs were supplied with BioPlus YC probiotic (Chr. Hansen) in the amount of 400 g/t. The preparation contained a complex of probiotic bacteria Bacillus licheniformis DSM 5749, and Bacillus subtilis DSM 5750 spores in a 1:1 ratio. From the fourth insertion, after reaching a body weight of approximately 112 kg, 60 fatteners were selected from each group to measure carcass quality and half of them for meat quality evaluation. Moreover, microbiological analyses in feed and colon were performed. The study showed that BioPlus YC probiotics supplementation resulted in a significantly higher count of B. subtilis and B. licheniformis in the feed, a higher count of B. subtilis, B. licheniformis and LAB, as well as a lower count of Enterobacteriaceae, Enterococcus, Clostridium and Bacillus sp. in the mucosa and in the colorectal content of the test pigs. Our work has shown that supplementation with the BioPlus YC probiotic had a positive effect on the production traits of pigs mainly by reducing mortality (2.83%, p = 0.010), lowering feed conversion ratio—FCR (2.59 kg/kg, p = 0.013), better average daily gain—ADG (0.95 kg/day, p = 0.002) and shorter fattening period (77.25 days, p = 0.019) when compared to the control group (4.19%; 2.79 kg/kg; 0.89 kg/day; 92.8 days, respectively). The addition of the specific Bacillus bacteria did not influence carcass and meat characteristics of the test fatteners.

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Combined administration of bacteriocin- -producing, probiotic strain Enterococcus faecium CCM7420 with Eleutherococcus senticosus and their effect in rabbits

Polish Journal of Veterinary Sciences ◽

10.2478/pjvs-2013-0089 ◽

2013 ◽

Vol 16 (4) ◽

pp. 619-627 ◽

Cited By ~ 9

Author(s):

M. Pogány Simonová ◽

A. Lauková ◽

L. Chrastinová ◽

I. Plachá ◽

V. Strompfová ◽

...

Keyword(s):

Growth Performance ◽

Enterococcus Faecium ◽

Average Daily Gain ◽

Probiotic Strain ◽

Cholesterol Concentration ◽

Control Group ◽

Feed Conversion ◽

Eleutherococcus Senticosus ◽

Commercial Diet ◽

And Control

Abstract The effect of Enterococcus faecium CCM7420 (EF) - enterocin-producing and probiotic strain of rabbit origin, Eleutherococcus senticosus extract (ES) and their combination (ES+EF) was determined on selected bacteria in faeces and caecum content, leukocytes phagocytosis, blood biochemistry and growth performance. Ninety-six weaned rabbits were divided into 3 experimental (ES, EF, ES+EF) and control group (CG). The rabbits in the groups ES and EF+ES were fed commercial diet enriched with E. senticosus extract (30 g/100 kg feed), rabbits in groups EF and CG were fed untreated diet. The rabbits in the EF and ES+EF groups were administered with an overnight culture of E. faecium CCM7420 strain (500 μl/animal/day into water, 109 CFU/ml). The treatment period lasted 21 days. The microbiological examinations in faecal samples confirmed the presence of E. faecium CCM7420 strain. In groups EF and ES+EF, the reduction of faecal coliforms, Pseudomonas-like sp., Clostridium-like sp. and S. aureus was recorded. Leucocyte phagocytosis significantly increased in all experimental groups (P<0.0001) compared to CG. The lowest GPx values were measured in the ES+EF group. Higher total protein, triglycerides and calcium concentrations were detected in experimental groups compared to CG. The cholesterol concentration decreased in the ES group. The highest average daily gain was recorded in EF group; in ES+EF the better feed conversion ratio and no mortality was recorded. These results indicated that the dietary supplementation with the E. faecium CCM7420 and E. senticosus extract stimulate the leukocytes phagocytosis and reduces the potential pathogens in rabbits digestive tract without oxidative stress and improve the growth performance.

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Effect of colistin and tylosin used as feed additives on the performance, diarrhea incidence, and immune response of nursery pigs

Semina Ciências Agrárias ◽

10.5433/1679-0359.2016v37n4p1947 ◽

2016 ◽

Vol 37 (4) ◽

pp. 1947 ◽

Cited By ~ 2

Author(s):

Kelly Mazutti ◽

Leandro Batista Costa ◽

Lígia Valéria Nascimento ◽

Tobias Fernandes Filho ◽

Breno Castello Branco Beirão ◽

...

Keyword(s):

Immune Response ◽

Feed Intake ◽

Immune Cell ◽

Average Daily Gain ◽

Experimental Period ◽

Feed Additives ◽

Control Group ◽

Feed Conversion ◽

Nursery Pigs ◽

Diarrhea Incidence

For the last several decades, antimicrobial compounds have been used as feed additives to promote piglet growth at weaning, through the prevention of subclinical and clinical disease. However, few studies have assessed the influence of these antibiotics on the immune response of nursery pigs, as well as the relation between performance, health, and immunity of animals that receive feed additives. Therefore, the present study aimed to evaluate the effects of colistin and tylosin when used as feed additives on the performance, incidence of diarrhea, and immune response of nursery pigs. In this study, 72 weaned pigs (average age, 28 days) were allotted into one of three treatment groups: a control group (feed with no antibiotics), tylosin group (feed containing 22 ppm tylosin), and colistin group (feed containing 20 ppm colistin). Weekly, during a five week period, the average daily feed intake, average daily gain, and feed conversion ratio of the pigs were evaluated. Stools were scored daily, in accordance with a fecal texture scale. Blood samples were collected on the day of housing (d0) and on d7, d21, d28, and d35 for immune cell phenotyping. The results of this study showed that piglets in both the colistin and tylosin groups exhibited a significantly higher average daily feed intake, resulting in a higher body weight at the end of the experimental period (d35) when compared with piglets from the control group. Colistin and tylosin also significantly reduced the incidence of diarrhea. Colistin and tylosin modulated the piglets’ immune responses, particularly on d28, by changing the percentage of circulating B lymphocytes, CD4+CD8+ T cells, and the CD4:CD8 ratio.

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Ingestive behavior of lambs fed with guava agro-industrial waste ( Psidium guajava )

Revista Brasileira de Saúde e Produção Animal ◽

10.1590/s1519-99402122192021 ◽

2021 ◽

Vol 22 ◽

Author(s):

Priscila Torres NOBRE ◽

Roberto Germano COSTA ◽

Neila Lidiany RIBEIRO ◽

Francisco Fernando Ramos de CARVALHO ◽

George Rodrigo Beltrão da CRUZ ◽

...

Keyword(s):

Feed Efficiency ◽

Industrial Waste ◽

Control Diet ◽

Average Daily Gain ◽

Neutral Detergent Fiber ◽

Ingestive Behavior ◽

Control Group ◽

Feed Conversion ◽

Inclusion Level ◽

Santa Inês

ABSTRACT The objective of this work was to evaluate the effect of increasing levels of guava agro-industrial waste (GAW) on the ingestive behavior of Santa Inês lambs. Forty non-castrated sheep of the Santa Inês breed were used, at an initial weight of 21.33 ± 2.62 kg, and at the age of 120 days, distributed in a completely randomized design, with five treatments and fed with increasing GAW levels (0.0, 7.5, 15.0, 22.5 and 30.0%). The average daily gain (ADG) showed orthogonal contrast (P <0.05), in which the animals that ingested the control diet had lower performances. The animals with GAW added to the diet obtained more significant weight gains reflected by a better feed conversion. Among the variables, idleness, feeding, and total chewing time had a significant effect (P<0.05); animals spent more time idle at the 30.0% inclusion level and less time in the control group. However, the means of the 7.5, 15.0, and 22.5% GAW inclusion levels were statistically similar to the control group and the 30.0% level. There was a significant effect (P<0.05) on feed efficiency, with the lowest values being presented for the control group and the highest values at the 30% inclusion level of GAW. The 30.0% GAW feed for lambs in confinement reduces feed time, and total chewing prolongs idleness and increases feed efficiency without compromising dry matter intake, neutral detergent fiber intake, and ADG.

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The use of phytobiotics in growth stimulation of weaned pigs

Veterinarski glasnik ◽

10.2298/vetgl1502063r ◽

2015 ◽

Vol 69 (1-2) ◽

pp. 63-74

Author(s):

Stamen Radulovic ◽

Radmila Markovic ◽

Dobrila Jakic-Dimic ◽

Dragan Sefer

Keyword(s):

Body Weight ◽

Average Daily Gain ◽

Growth Stimulation ◽

Animal Nutrition ◽

Control Group ◽

Feed Conversion ◽

Growth Promoters ◽

Weaned Pigs ◽

Daily Gain ◽

Stimulation Of

Phytogene feed additives (phytobiotics) are plant origin compounds used in animal nutrition in order to improve their productivity by improving the production performance of animals, feed properties and the quality of food of animal origin. These additives stimulate animal growth by using their natural and physiological potentials and mechanisms providing conditions for the realization of the genetically projected production volumes. Data on the use of phytobiotics as growth stimulators are incomplete and often very contradictory, especially those related to their impact on the health and performance of weaned pigs. Given the relevance and importance of these issues the feeding trial was organized by the group-control system. The experiment lasted for 40 days and it was divided into two phases of 20 days each. Trial was conducted on 24 piglets, F1 generation of Swedish Landrace and Pietrain, weaned from sows at the age of 35 days. Tests were carried out on piglets, with an average body weight of 8.61?1.59 kg, which were subjected to one of the two feeding treatments immediately after weaning. The control group was fed with a mixture without growth promoters, while the experimental group received a diet containing preparation of phytobiotic (Enviva EO 101, Danisco Animal Nutrition) in the amount recommended by the manufacturer (0.1 kg/t). The mixtures for piglets nutrition were formulated in accordance with the recommendations of the NRC (1998), and AEC (1993) and they met the nutritional requirements completely. During the experiment, there was no disturbance of health and/or the manifestation of clinical signs of disease. The control group, fed with the diet without added growth stimulators, achieved body weight (25.32?6.31 kg), average daily gain (0.42?0.12 kg), consumption (0.89 kg) and feed conversion (2.119 ) normal for a given race, age and housing conditions. The use of preparation of phytobiotics as growth promoters, led to better production results in regard to the control group, which was based on higher body weight (27.19?4.77 kg), higher average daily gain (0.46?0.09 kg) and better feed conversion (2.043). The use of phytobiotic, as an alternative option in growth stimulation of weaned pigs, has its nutritive, medical and economic justification.

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