Performance of feedlot cattle with inclusion of live yeast in the diet

The objective of this study was to evaluate the productive performance, ingestive behavior, apparent digestibility of the diet, rectal temperature, superficial thermography of skin and hull, and the carcass traits of heifers finished in confinement under the effect of inclusion of live yeasts (Saccharomyces cerevisiae as probiotic) in the diet. The treatments were: Control: diet without the inclusion of live yeasts, and Yeast: diet with the inclusion of live yeasts (7 g animal day-1, at the concentration of 107 CFU g-1. The diets were composed of corn silage at a constant forage: concentrate ratio of 50: 50, on a dry matter basis. The experimental design was completely randomized, composed of two treatments and nine replicates, wherein each replicate was represented by a stall with two animals. Thirty-six heifers, ½ blood Angus, from the same herd, with an average age of 11.9 months and an initial average body weight of 317 kg, were used in the experiment. Supplementation of live yeasts in the diet for finishing heifers proved to be efficient in the feedlot finishing phase because it provided improvement in the apparent digestibility of DM. In relation to the productive performance, ingestive behavior, rectal temperature, superficial thermography of skin and hull and carcass traits, no statistical difference was found between the treatments. The animals have already come from the property adapted to the feedlot system, defining small challenge against the presence of live yeasts included in the experimental diet, justifying the lack of expression on some results obtained.

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Yeast culture in the diet of feedlot steers: performance, carcass traits and feeding behavior

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/1678-4162-11148 ◽

2020 ◽

Vol 72 (2) ◽

pp. 535-544

Author(s):

M. Neumann ◽

A.M. Souza ◽

E.H. Horst ◽

R.C. Araujo ◽

B.J. Venancio ◽

...

Keyword(s):

Feeding Behavior ◽

Control Diet ◽

Carcass Traits ◽

Ingestive Behavior ◽

Daily Weight Gain ◽

Yeast Culture ◽

Apparent Digestibility ◽

Forage Maize ◽

Feedlot Steers ◽

Peripheral Temperature

ABSTRACT This study aimed to evaluate the performance, apparent digestibility of diet, ingestive behavior which occurred in two moments, carcass traits, being evaluated constituent and non-carcass components, and also the effect the yeast culture could promote in the peripheral temperature of rumen, hull and body temperature. The diets consisted of a constant ratio of 50% forage (maize silage) and 50% concentrate. Thirty-six steers, ½ Angus Nelore, with average age of 11 months and average initial body weight of 339.5±10kg were used in the experiment. The inclusion of yeast culture promoted a higher daily dry matter intake (8.83 vs 9.35kg day-1) and, consequently, a better daily weight gain (1,143 vs. 1,325kg day-1) in the initial feedlot phase, with no difference in other periods. The apparent digestibility of the diet containing yeast culture was higher than the control diet (69.69 versus 68.32%, respectively), and its use did not interfere with the feeding behavior of the animals. Based on our findings, supplementation with yeast culture may bring positive results in the initial feedlot phase.

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Effect of sealing on the feed out face of trench silos on the performance of confined calves

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/1678-4162-12248 ◽

2021 ◽

Vol 73 (3) ◽

pp. 711-720

Author(s):

M. Neumann ◽

F.B. Cristo ◽

G.B. Pontarolo ◽

A.M. Souza ◽

M.P. Machado ◽

...

Keyword(s):

Dry Matter ◽

Average Daily Gain ◽

Corn Silage ◽

Ingestive Behavior ◽

Apparent Digestibility ◽

Productive Performance ◽

Percentage Points ◽

Different Types ◽

Feedlot Calves ◽

Daily Gain

ABSTRACT This study aimed to evaluate the productive performance, dry matter intake, apparent digestibility and ingestive behavior of feedlot calves fed corn silage from the feed out face of trench silos with different types of sealing. The animals were divided into three treatments with four repetitions: Conventional seal - double-sided polyethylene of 110µm thickness; Double-sided seal - double-sided polyethylene of 200µm thickness; and Double seal - composed of double face polyethylene with a thickness of 80µm superimposed on a polyamide translucent vacuum film with a thickness of 20µm. The use of double face sealing provided 12.63% increase in average daily gain and improved food conversion by 0.62 percentage points. The apparent digestibility of the diet with double-face sealing system silage was 4.30% higher than the diet with double-face sealing silage and 11.00% higher than the diet with conventional sealing silage. It is recommended to use the double face sealing with 200µm polyethylene and double face sealing with 80µm thick polyethylene on top of a 20µm thick polyamide translucent vacuum film.

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216 Autolysed yeast supplementation in finishing beef steers diets during feedlot

Journal of Animal Science ◽

10.1093/jas/skaa278.285 ◽

2020 ◽

Vol 98 (Supplement_4) ◽

pp. 156-156

Author(s):

Mikael Neumann ◽

Melina A Bonato ◽

Liliana L Borges

Keyword(s):

Control Diet ◽

Ingestive Behavior ◽

Control Group ◽

Beef Steers ◽

Apparent Digestibility ◽

Productive Performance ◽

Longissimus Dorsi Muscle ◽

Fat Thickness ◽

Digital Caliper ◽

Positive Results

Abstract The objective of this study was to evaluate the productive performance, the ingestive behavior, the apparent digestibility of the feed, and the carcass characteristics of finishing beef steers during feedlot under different inclusions of autolyzed yeast (AY). For this, 36 ½ Angus steers (average BW 330 kg and 11 months of age), were distributed in a completely randomized way, consisting of three treatments and six replications (of two animals each): T1 - Control; T2 – AY 4g (diet with 4 g/animal/day of AY Saccharomyces cerevisiae product RumenYeast®), and T3 – AY 7g (diet with 7 g/animal/day of RumenYeast®), for 105 days, being 14 days of adaptation, two periods of 28 days and 1 of 35 days. The performance was evaluated, as well as the apparent digestibility of the diet, at the end of the 1st and 3rd periods with the total collection of feces. The carcass gain in the period was also calculated, and the thickness of fat on the Longissimus dorsi muscle was measured, as well as on the front, side, and back, using a digital caliper. The data were submitted to analysis of variance and the means compared to 5% of significance. The supplementation of AY 4g promoted higher daily BWG and better FCR during the adaptation feedlot period (P < 0.05), and the AY 7g did not differ from the other treatments. The animals that received AY ended up with higher fat thickness in the carcass than the control group (P < 0.05). The apparent digestibility of diets containing AY was higher than the control diet (P < 0.05). Based on these results, the supplementation of AY 4g yielded positive results in the initial phase of the feedlot, improved the apparent digestibility of DM, and resulted in better carcass finishing.

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Effects of including autolyzed yeast in the finishing of feedlot steers

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n4p2471 ◽

2021 ◽

Vol 42 (4) ◽

pp. 2471-2488

Author(s):

Giovanna Bobato Pontarolo ◽

◽

Mikael Neumann ◽

Fernando Braga Cristo ◽

Edelmir Silvio Stadler Júnior ◽

...

Keyword(s):

Body Weight ◽

Production Efficiency ◽

Body Weight Gain ◽

Control Diet ◽

Animal Health ◽

Ingestive Behavior ◽

Control Group ◽

Apparent Digestibility ◽

Feed Conversion ◽

Feedlot Steers

Functional additives, such as autolyzed yeasts, have been used to achieve greater production efficiency and animal health. These compounds are also alternatives to the use of performance-enhancing antimicrobials. The objective was to evaluate the productive performance, ingestive behavior, apparent digestibility of feed DM and the carcass characteristics of beef steers finished in feedlot receiving autolyzed yeasts in the diet. The experimental design was randomized blocks, consisting of three treatments and six repetitions, where each repetition was represented by a stall with two animals. 36 bulls, ½ Angus × ½ Nelore blood, from the same herd, with an average age of 11 months and an average body weight of ± 330 kg were used.The treatments were as follows: CON - yeast-free diet; Y4 - yeast diet (4 g animal day-1) and Y7 - yeast diet (7 g animal day-1). The product used is a functional ingredient containing the yeast Saccharomyces cerevisiae. The inclusion of autolyzed yeasts resulted in greater daily body weight gain and better feed conversion in the initial feedlot phase. The apparent digestibility of DM of diets containing autolyzed yeast was superior to the control diet, and its use did not interfere with the animal ingestive behavior. Supplementation with autolyzed yeasts at the inclusion level of 4 g day-1 promoted better results in the finishing of feedlot steers, and that the supplemented groups (4 g animal day-1 and 7 g animal day-1) achieved the same degree of carcass finishing, higher than the control group.

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Carcass traits and relative organ weights of growing rabbits fed graded levels of processed kola nut (Cola nitida) pod husks

Nigerian Journal of Animal Production ◽

10.51791/njap.v46i5.248 ◽

2020 ◽

Vol 46 (5) ◽

pp. 112-119

Author(s):

S. A. Adeyeye ◽

J. O. Agbede ◽

V. A. Aletor ◽

O. D. Oloruntola ◽

S. O. Ayodele ◽

...

Keyword(s):

Body Weight ◽

Deleterious Effect ◽

Control Diet ◽

Carcass Traits ◽

Organ Weights ◽

Ad Libitum ◽

Dietary Treatments ◽

Average Body ◽

Cola Nitida ◽

Average Body Weight

Carcass traits and relative organ weights of growing rabbits fed graded levels of processed (ash treated and rumen liquor fermented) kola nut (Cola nitida) pod husks (PKPH) were investigated. One hundred and twenty (120) weaner rabbits of mixed breeds (New-Zealand white × Chinchilla) of equal sexes and average body weight 525.46g were randomly allotted to four (4) dietary treatments at 0 (0.00 % PKPH), 10 (10 % PKPH), 20 (20 % PKPH), and 30 % (30 % PKPH) inclusion levels and designated as diets 1, 2, 3, and 4, respectively. Each treatment group was replicated ten (10) times with three (3) rabbits per replicate and was fed ad-libitum for 56 days. The highest slaughter weight (1813.80 g/r), dressing weight (1068.70 g/r) and dressing percentage (58.54 %) recorded in rabbits fed diet 3 (20% PKPH) were similar to those fed the control diet (0 % PKPH) and diet 2 (10% PKPH) but was significantly (P<0.05) higher than those fed diet 4 (30 % PKPH). The lungs, liver, kidney, heart, and spleen of the rabbits fed dietary treatments were not significantly influenced. It was concluded that processed kolanut pod husk had no deleterious effect on carcass and relative organs weight of weaner rabbits.

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The Effect of Symbiotic Drenching Mixture on the Ingestive Behavior, Productive Performance, Blood Biochemical Parameters and Carcass Traits of Growing Rabbits

Alexandria Journal of Veterinary Sciences ◽

10.5455/ajvs.293575 ◽

2018 ◽

Vol 59 (1) ◽

pp. 52

Author(s):

Ahmed Hassan

Keyword(s):

Biochemical Parameters ◽

Carcass Traits ◽

Ingestive Behavior ◽

Productive Performance ◽

Blood Biochemical Parameters ◽

Blood Biochemical

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Effect of inoculants in corn silage on dry matter digestibility, ingestive behavior, performance and carcass of heifers

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n3p1271 ◽

2021 ◽

Vol 42 (3) ◽

pp. 1271-1286

Author(s):

Tânia Mara Becher Ribas ◽

◽

Mikael Neumann ◽

Egon Henrique Horst ◽

Fernando Braga Cristo ◽

...

Keyword(s):

Lactic Acid ◽

Lactobacillus Casei ◽

Dry Matter ◽

Corn Silage ◽

Ingestive Behavior ◽

Dry Matter Intake ◽

Apparent Digestibility ◽

Lactobacillus Buchneri ◽

Dry Matter Digestibility ◽

Different Strains

We aim to evaluate inoculants with different strains of lactic acid bacteria (LAB) in corn silage on ingestive behavior, apparent digestibility of diet, performance and carcass traits of heifers. The treatments were: corn silage without inoculant (control); with 11CFT inoculant (strains of Lactobacillus buchneri and Lactobacillus casei) and with 11C33 inoculant (Lactobacillus buchneri, Lactobacillus plantarum and Enterococcus faecium) with six repetitions each. Ingestive behavior, weight gain and daily dry matter intake was not affected by the use of inoculants in corn silage. The apparent digestibility of diet was higher to silage with 11C33 inoculant, not differing from the diet with silage with 11CFT (73.30% and 71.99%, respectively). The animals fed silage inoculated with 11CFT obtained greater values of carcass gain and average daily carcass gain (86.33 kg and 0.833 kg day-1, respectively). The use of these inoculants in corn silage shows promising results regarding the gain of animals in feedlot.

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Productive performance and quantitative carcass traits of lambs fed saccharine sorghum silage

Pesquisa Agropecuária Brasileira ◽

10.1590/s1678-3921.pab2019.v54.00577 ◽

2019 ◽

Vol 54 ◽

Cited By ~ 1

Author(s):

Débora Maurício Manarelli ◽

Marco Antonio Previdelli Orrico Junior ◽

Marciana Retore ◽

Fernando Miranda de Vargas Junior ◽

Mabio Silvan José da Silva ◽

...

Keyword(s):

Dry Matter ◽

Carcass Traits ◽

Corn Silage ◽

Dry Matter Intake ◽

Productive Performance ◽

Forage Sorghum ◽

Different Types ◽

Sorghum Silage ◽

Corn Hybrid

Abstract: The objective of this work was to evaluate the productive performance and carcass traits of lambs fed silages of different types of sorghum and corn. Thirty-two uncastrated male Suffolk lambs were used. The experimental design was completely randomized, with four treatments (silages) and eight replicates (animals). Silages of the GrandSilo forage sorghum, BRS 506 saccharine sorghum, BRS 511 saccharine sorghum, and the BRS 2223 double-grain corn hybrid were tested. The lambs fed sorghum silages had a lower daily dry matter intake than those fed corn silage. The diet containing corn silage led to 27% greater weight gain, when compared with the treatments with the other silages. In vivo digestibility did not differ among the different silages. Lambs fed corn silage showed the lowest hot and cold carcass yields of 44.71 and 42.62%, respectively, whereas those that consumed BRS 506 sorghum silage showed the highest hot and cold carcass yields of 46.90 and 44.78%. The greater intake by and the better performance of the animals fed corn silage was not enough to enhance production and carcass yield. Lambs fed BRS 506 saccharine sorghum silage have higher efficiency in the conversion of silage into carcass.

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