The Effect of Live Yeast Supplementation on Beef Cattle Performance: A Systematic Review and Meta-Analysis

This meta-analysis evaluates the effects of yeast supplementation (Saccharomyces cerevisiae) on dry matter intake (DMI) and average daily gain (ADG) in beef cattle. The inclusion criteria were complete and randomized trials and supplementation with yeast S. cerevisiae versus no supplementation to measure DMI or ADG. Data were extracted from relevant papers via pre-defined protocols. A meta-analysis of random effects was conducted for each indicator separately including the mean of the control and treated groups. The results were presented with the pooled mean difference (MD), 95% of confidence interval, and I² (percentage of total variation between studies that is due to heterogeneity rather than chance). A total of 12 publications reporting 22 trials conducted in 1,161 cattle were analysed. The heterogeneity between studies was high and ranged from 92 to 99%. No effects were observed in ADG with the inclusion of yeast in the diet (MD = -2.849 g/day, p = 0.492). However, there was a reduction in the DMI (MD = -0.885 kg/day; p = 0.023) despite the high heterogeneity among studies (I2 = 92.4%; p < 0.001). The ADG increased when the forage level in the diet was between 30 and 50% (MD = 641.08 g/day; p = 0.001) and decreased when the level range from 51 to 75% (MD = -2.90 g/day; p < 0.001). In over 60% of the Neutral Detergent Fibre, the use of yeast in the diet decreased the ADG by 406.94 g/day (p = 0.034). Feedlot animals showed a reduction in the DMI (MD = -0.97 kg/day; p = 0.019) if supplemented with yeast. Supplementation with S. cerevisiae in the diet of beef cattle had no effect on ADG; however, it does improve the feed conversion due to the reduction in DMI.

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PROGENY TEST OF FINNISH AND CANADIAN AYRSHIRE BULLS FOR VEAL AND BEEF PRODUCTION

Canadian Journal of Animal Science ◽

10.4141/cjas78-017 ◽

1978 ◽

Vol 58 (2) ◽

pp. 115-122

Author(s):

B. W. KENNEDY ◽

G. M. JONES ◽

R. L. CHICOINE ◽

C. G. HICKMAN ◽

E. B. BURNSIDE

Keyword(s):

Dry Matter ◽

Average Daily Gain ◽

Progeny Test ◽

Dry Matter Intake ◽

Beef Production ◽

Feed Conversion ◽

Veal Calf ◽

Unbiased Estimates ◽

Best Linear Unbiased ◽

Daily Gain

An experiment was conducted to obtain progeny test comparisons of Finnish and Canadian Ayrshire bulls for veal and beef production. A total of 83 male calves from four Canadian and four Finnish sires was tested. Best linear unbiased estimates of differences between veal calf progeny of Finnish and Canadian bulls for time on test, average daily gain and feed conversion were 4.00 ± 5.63 days, −.044 ±.038 kg/day and.062 ±.067 kg dry matter intake/kg gain, respectively. For veal carcass traits, progeny differences between Finnish and Canadian bulls for dressing percent and carcass grade, quality, finish and color scores (scores ranged from 1 to 3, except for color score which ranged from 1 to 2, with high score desirable) were.25 ± 1.13%, −.085 ±.232,.146 ±.303,.122 ±.302 and.104 ±.192, respectively. When raised for beef, differences between Finnish and Canadian sired steers were.015 ±.019 kg/day for feedlot average daily gain and.21 ±.66% for dressing percent. None of these differences were significant (P >.05). Based on these results, the importation of Finnish semen would not be expected to materially change the veal and beef performance of Ayrshires in Canada.

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Effect of including canola meal in diets of slaughter ostriches (Struthio camelus var. domesticus)

South African Journal of Animal Science ◽

10.4314/sajas.v50i4.6 ◽

2020 ◽

Vol 50 (4) ◽

pp. 537-551

Author(s):

T.S. Brand ◽

J. Van der Merwe ◽

L.C. Hoffman

Keyword(s):

Dry Matter ◽

Average Daily Gain ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Dry Matter Intake ◽

Canola Meal ◽

Production Traits ◽

Feed Conversion ◽

Daily Gain

Canola meal (CM) is a locally produced protein source that may be less expensive than soybean meal (SBM). This study evaluated the effects of replacing 0%, 25%, 50%, 75%, and 100% SBM with CM in diets for slaughter ostriches. The CM was added at the expense of SBM and other concentrates, with minor changes in other ingredients. Birds (n = 15 per treatment) were reared from 77 to 337 days old on the trial diets, which were supplied ad libitum for starter, grower, and finisher phases. Bodyweights and feed intake were measured during these phases. No differences (P >0.05) were found between treatments for live weight at the end of each phase, dry matter intake (DMI), average daily gain (ADG) and feed conversion ratio (FCR) over all the growth phases. Although no differences were observed in live weight at the end of each phase, the birds reared on the diet with 50% CM were heaviest at slaughter, and birds reared with 100% CM were lightest (P <0.05). Differences (P <0.05) between diets were observed for the weight at slaughter, weights of the liver and thyroid glands and the pH of the cold carcass. However, no differences (P >0.05) were observed between diets for fat pad weight, dressing percentage, and weights of thighs and Muscularis gastrocnemius. The results indicate that CM could replace SBM in the diets of slaughter ostriches without affecting production traits and slaughter yields.Keywords: alternative protein, average daily gain, canola, dry matter intake, feed conversion ratio, growth, ostrich nutrition, production

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Evaluation of Dry Matter Intake and Average Daily Gain of Beef Cattle in Samarinda City

Journal of Southwest Jiaotong University ◽

10.35741/issn.0258-2724.56.1.15 ◽

2021 ◽

Vol 56 (1) ◽

Author(s):

Hamdi Mayulu ◽

Endra Ari Topan ◽

Muh. Ichsan Haris ◽

Taufan Purwokusumaning Daru

Keyword(s):

Beef Cattle ◽

Rice Straw ◽

Dry Matter ◽

Linear Regression Analysis ◽

Average Daily Gain ◽

Dry Matter Intake ◽

Feed Resources ◽

Intake Level ◽

Rice Area ◽

Daily Gain

The objective of this research was to determine the potential uses of dry matter in the average daily gain of beef cattle and rice straw carrying capacity as a feed alternative. The research used an analytical survey approach, and the location was chosen via purposive sampling. Data collection consisted of conducting interviews and observations based on a questionnaire; then, the collected data were tabulated and analyzed using descriptive statistics. Spearman’s correlation coefficient was used to determine the relationship between dry matter intake level and average daily gain; simple linear regression analysis was used to measure the effect of dry matter intake level on average daily gain. The results revealed that the average daily gain of beef cattle in North Samarinda, Palaran, Sambutan, and Samarinda Ulu (Indonesia) was 0.44 kg, 0.45 kg, 0.45 kg, and 0.45 kg, respectively. The analysis results of dry matter intake level on average daily gain obtained via the regression equation (Y) were as follows: Ỷ = 0.013 + 0.945X. This indicates that every intake of 0.945 kg of dry matter would yield an average daily gain increase of 0.013 kg. Effective utilization of available abundant feed resources (rice straw) is the key to economic maintenance of cattle; however, it tends to have low nutrition and low digestibility, so it is not given as a single feed because it cannot meet beef cattle’s dietary needs. This research found that rice straw production (each hectare of rice area) was able to supply alternative feed for beef cattle of 2.7 animal units per year.

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Performance, carcass traits, and non-carcass components of feedlot finished lambs from different residual feed intake classes

Semina Ciências Agrárias ◽

10.5433/1679-0359.2018v39n6p2645 ◽

2018 ◽

Vol 39 (6) ◽

pp. 2645 ◽

Cited By ~ 1

Author(s):

Raizza Fátima Abadia Tulux Rocha ◽

Andréa Roberto Duarte Lopes Souza ◽

Maria Da Graça Morais ◽

Mayara Mitiko Yoshihara Carneiro ◽

Henrique Jorge Fernandes ◽

...

Keyword(s):

Body Weight ◽

Feed Intake ◽

Dry Matter ◽

Average Daily Gain ◽

Carcass Traits ◽

Residual Feed Intake ◽

Dry Matter Intake ◽

Mineral Mixture ◽

The Mean ◽

Daily Gain

This study aimed to assess the performance, carcass traits, and non-carcass components of feedlot finished Texel crossbred lambs from different residual feed intake classes (RFI). Forty-seven uncastrated male Texel crossbred lambs (¾ Texel + ¼ Pantaneira) tested here were 4-month-old with an initial weight of 29.9 ± 5.5 kg. The lambs were confined for 70 days for individual dry matter intake (DMI) and average daily gain (ADG) assessment. The diet containing corn silage was provided as roughage, while the concentrate consisted of corn grain, soybean meal, urea, and mineral mixture with a 40:60 roughage to concentrate ratio and 76.34% total digestible nutrients (TDN). After confinement for 70 days, the lambs were slaughtered to assess carcass traits and non-carcass components. Based on the RFI, lambs were divided into three classes according to the standard deviation (sd): Positive RFI (inefficient, 0.5 above the mean), Negative RFI (efficient, 0.5 below the mean), and Medium RFI (intermediate). Classes with Negative (efficient) and Positive RFI (inefficient) showed no differences in ADG (0.321 vs 0.306 kg; P > 0.05). Dry matter intake (g d-1), and percentage of body weight (BW) differed significantly between the RFI classes (P < 0.05). Compared to lambs in the inefficient class, those in the efficient class (Negative RFI) showed a 9% reduction in DMI and had the same ADG. The lambs in either Positive or Negative RFI classes showed no weight differences between non-carcass components (P > 0.05). The RFI classes showed no differences in shrunk body weight, hot carcass weight, hot dressing, and weight of commercial cuts (P > 0.05). They showed no differences in neck, shoulder + shank, loin, rack, flank steak, rack cap off, and leg weights (P > 0.05). Our results indicate that improvement in feed efficiency, as a function of the RFI index, does not compromise performance and carcass traits of Texel crossbred lambs.

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Can potential for dark cutting be predicted by phenotype? Relationship between sex, carcass characteristics, and the incidence of dark cutting beef

Canadian Journal of Animal Science ◽

10.1139/cjas-2015-0099 ◽

2016 ◽

Vol 96 (1) ◽

pp. 19-31 ◽

Cited By ~ 9

Author(s):

Shahid Mahmood ◽

John A. Basarab ◽

Walter T. Dixon ◽

Heather L. Bruce

Keyword(s):

Dry Matter ◽

Mixed Model ◽

Average Daily Gain ◽

Carcass Characteristics ◽

Dry Matter Intake ◽

Beef Quality ◽

Live Animal ◽

Mixed Model Analysis ◽

The Mean ◽

Daily Gain

Recent research indicated that reduced carcass muscling and weight are associated with beef dark cutting. Existing data from a single farm (44 heifers, 136 steers) from three normal beef quality grades (Canada AAA, AA, A) and the dark cutting grade (Canada B4) (n = 35, 106, 28, and 11, respectively) were used to identify relationships between sex, live animal, and carcass characteristics and the incidence of dark cutting. Categorical modelling showed a trend (P = 0.106) for heifer carcasses to have a greater probability [11.36 ± 4.78% standard error of the mean (SEM)] of dark cutting than carcasses from steers (4.4 ± 1.76% SEM). Mixed model analysis of variance indicated dark cutting heifers weighed less than cattle from normal grades at weaning (P = 0.0229) and slaughter (P = 0.0295). Logistic regression revealed that the probability of each carcass grade occurring was influenced by dry matter intake (DMI) (P = 0.0034), and the probability of dark cutting was lowest (P = 0.0286) in cattle with carcasses greater than 300 kg. Results suggested that cattle at risk of dark cutting may be identified by weight, average daily gain (ADG), and feed intake.

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COMPARISON OF SILAGES FROM DENSELY SEEDED AND CONVENTIONALLY SEEDED CORN FOR BEEF STEERS

Canadian Journal of Animal Science ◽

10.4141/cjas86-045 ◽

1986 ◽

Vol 66 (2) ◽

pp. 431-439 ◽

Cited By ~ 3

Author(s):

J. W. G. NICHOLSON ◽

G. BELANGER ◽

P. L. BURGESS

Keyword(s):

Beef Cattle ◽

Dry Matter ◽

Average Daily Gain ◽

Productivity Loss ◽

Dry Matter Intake ◽

Beef Steers ◽

Vitamin Supplement ◽

Seeding Rate ◽

And Performance ◽

Daily Gain

Corn for silage was planted at two seeding rates (60 000 and 200 000 kernels ha−1) in three consecutive years and evaluated by determining yields, digestibility by sheep and performance of growing-fattening beef cattle fed the ensiled crops. Plant populations at harvest ranged over years from 53 000 to 63 000 plants ha−1 for conventional seeding and from 94 000 to 151 000 plants ha−1 for the dense seeding rate. Dense seeding increased whole-plant dry matter yield each year. Only in 1 year (1979) did dense seeding reduce the yield of dry matter in the whole ear or grain (P < 0.01). In the same crop year (1979) dense seeding reduced the dry matter and crude protein contents of the silage (P < 0.01) and the digestibilities by sheep of the dry matter and nitrogen were lower (P < 0.01) than for the conventionally seeded crop. In 2 years (1978 and 1979), when the silages were fed ad libitum with only a protein-mineral-vitamin supplement, the daily silage dry matter intake by beef cattle was lower (P < 0.01 or P < 0.05) and in 1979 the average daily gain (1.06 vs. 1.14 kg d−1) was lower (P < 0.01) with silage from the dense seeding. There were no significant differences in beef performance parameters (silage dry matter intake, daily gain, and efficiency of silage conversion to daily gain) in the third year when the silages were fed with ground barley. Dense seeding of corn for silage resulted in more beef production per hectare and provides a means of reducing productivity loss due to birds feeding on the ripening ears of corn. Key words: Corn, silage, beef, dense seeding, seeding rate

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Meta-analysis of spineless cactus feeding to meat lambs: performance and development of mathematical models to predict dry matter intake and average daily gain

animal ◽

10.1017/s1751731119000326 ◽

2019 ◽

Vol 13 (10) ◽

pp. 2260-2267

Author(s):

L.S. Knupp ◽

F.F.R. Carvalho ◽

A. Cannas ◽

M.I. Marcondes ◽

A.L. Silva ◽

...

Keyword(s):

Mathematical Models ◽

Dry Matter ◽

Meta Analysis ◽

Average Daily Gain ◽

Dry Matter Intake ◽

Daily Gain

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Flight Zone as an Alternative Temperament Assessment to Predict Animal Efficiency

Proceedings ◽

10.3390/proceedings2019036207 ◽

2020 ◽

Vol 36 (1) ◽

pp. 207

Author(s):

Mariano Parra ◽

Tia Breed ◽

Alana Connolly ◽

Emily Janz ◽

Sarah Kennedy ◽

...

Keyword(s):

Dry Matter ◽

Average Daily Gain ◽

Pilot Trial ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Dry Matter Intake ◽

Feed Conversion ◽

Alternative Approach ◽

Brahman Steers ◽

Daily Gain

Animal temperament evaluation can be included in the cattle selection program also because of an existing correlation with performance. However, there are different assessment methods such as flight speed (time and speed that an animal takes to leave the crush) and exit score (indicating in which pace it does). Flight zone (FZ) refers to the distance that an animal allows human proximity without signs of fear (e.g., moving away and/or aggression) and it was used in this study as an alternative approach to measure temperament without putting cattle through the crush. Apparently, there is no study correlating FZ with performance. Therefore, a pilot trial was conducted to evaluate the correlation between average daily gain (ADG), dry matter intake (DMI) and feed conversion ratio (FCR) of ten Brahman steers. Steers were classified into temperament groups (Docile <2 m; Moderate between 2 to 2.9 m; and Lively ≥3 m). Even though no significant differences were found for ADG (P = 0.65), DMI (P = 0.36), and FCR (P = 0.46), the docile group gained 133 grams/day more than lively counterparts, most likely because of the extra 50 grams consumed. Furthermore, lively steers required an extra 1 kg of feed per kg of gain in comparison to docile animals, 8.24 vs. 7.28 kg FCR, respectively. These results are promising and indicate that FZ could be an efficient way to measure temperament in cattle. Thus, in order to confirm these findings, a new experiment with a more representative number of steers (n = 30) will be conducted.

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Effect of ionophores monensin and lasalocid on performance and carcass characteristics of fattening Arabi lambs

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200020421 ◽

2007 ◽

Vol 2007 ◽

pp. 139-139

Author(s):

Najafgholi Dabiri ◽

Khadigheh Heydari ◽

Jamal Fayazi

Keyword(s):

Dry Matter ◽

Average Daily Gain ◽

Carcass Characteristics ◽

Selective Inhibition ◽

Dry Matter Intake ◽

Limited Information ◽

Feed Conversion ◽

Ruminal Bacteria ◽

Daily Gain ◽

Stimulation Of

In some part of world for intensive production of fattening of lambs, they are fed with high amount of concentrate. However this pattern of feeding often affect negatively of rumen fermentation (Mould et al., 1983). Ionophores act by interrupting transmembrane movement and intracellular equilibrium of ions in certain classes of bacteria and protozoa that inhibit the gastrointestinal tract (McGuffey et al., 2001). In Ruminants, monensin has shown selective inhibition of ruminal bacteria, lactic and methane producers and stimulation of propionate production by 25% (Matabudul et al., 2001). In lambs, monensin improves weight gain and feed conversion ratio (FCR) and depressed the dry matter intake (DMI) (Martini et al., 1996), but lasalocid improve average daily gain (ADG) without depressed the DMI (Swanson et al., 2000). There is limited information about the effect of ionophores on performance of Iranian fattening lambs and particularly no works was done with Arabi lambs. Therefore, the present study was conducted to investigate the effects of feeding monensin and lasalocid on performance and carcass characteristics of fattening Arabi lambs.

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A Meta-Analysis of the Effects of Insects in Feed on Poultry Growth Performances

Animals ◽

10.3390/ani9050201 ◽

2019 ◽

Vol 9 (5) ◽

pp. 201

Author(s):

Nassim Moula ◽

Johann Detilleux

Keyword(s):

Feed Intake ◽

Meta Analysis ◽

Average Daily Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Inclusion Criteria ◽

Feed Conversion ◽

Growth Performances ◽

Analysis Models ◽

Daily Gain

We investigated and summarized results from studies evaluating the effects of feeding poultry with insects on their growth performances. After a systematic review of studies published since 2000, two independent reviewers assessed the eligibility of each one based on predefined inclusion criteria. We extracted information on the study design, insects, avian species, and growth performances, i.e., average daily gain, feed intake, and feed conversion ratio. Next, we estimated pooled differences between performances of poultry fed a diet with vs. without insects through random-effects meta-analysis models. Additionally, these models evaluated the effects of potential sources of heterogeneity across studies. Of the 75 studies reviewed, 41 met the inclusion criteria and included 174 trials. With respect to diets without insects, pooled differences in growth performances were statistically not different from the null, but heterogeneity was marked across studies. Average daily gain decreased with increasing inclusion rates of insects, going below the null for rates of 10% and more. Grasshoppers were negatively associated with the average daily gain and positively associated with feed intake. The country of publication was another source of heterogeneity across publications. Overall, our results show insects should substitute only partially conventional protein sources and not be grasshoppers to guarantee the appropriate growth of birds.

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