scholarly journals Effects of Three Feeding Systems on Production Performance, Rumen Fermentation and Rumen Digesta Particle Structure of Beef Cattle

2015 ◽  
Vol 29 (5) ◽  
pp. 659-665 ◽  
Author(s):  
Y. F. Liu ◽  
F. F. Sun ◽  
F. C. Wan ◽  
H. B. Zhao ◽  
X. M. Liu ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Rumen Fermentation ◽  
Production Performance ◽  
Particle Structure ◽  
Feeding Systems

67 Current Status and Future Prospective of the Use of Plant Bioactive Compounds in Dairy and Beef Cattle

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 132-132
Author(s):  
Sergio Calsamiglia ◽  
Maria Rodriguez-Prado ◽  
Gonzalo Fernandez-Turren ◽  
Lorena Castillejos
Keyword(s):  
Beef Cattle ◽  
Essential Oils ◽  
Average Daily Gain ◽  
Rumen Fermentation ◽  
Production Performance ◽  
In Vivo Studies ◽  
Current Status ◽  
The Impact

Abstract In the last 20 years there has been extensive in vitro research on the effects of plant extracts and essential oils on rumen microbial fermentation. The main objectives have been to improve energy metabolism through a reduction in methane emissions and an increase in propionate production; and to improve protein metabolism by reducing proteolysis and deamination. While the positive results from in vitro studies has stimulated the release of commercial products based on blends of essential oils, there is limited in vivo evidence on the rumen fermentation and production performance effects. A literature search was conducted to select in vivo studies where information on rumen fermentation and animal performance was reported. For dairy cattle, we identified 37 studies of which 21 were adequate to test production performance. Ten studies reported increases and 3 decreases in milk yield. For beef cattle, we identified 20 studies with rumen fermentation profile and 22 with performance data. Average daily gain improved in 7 and decreased in 1 study. Only 1 out of 16 studies reported an improvement in feed efficiency. Data indicate that out of more than 500 products tested in vitro, only around 20 have been tested in vivo in different mixtures and doses. The use of statistical approaches will allow to describe the conditions, doses and responses in dairy and beef cattle performance. The search for postruminal effects offers another alternative use. Evidence for effects on the intestinal and systemic effects on the immune system and antioxidant status (i.e., capsicum, garlic, eugenol, cinnamaldehyde curcuma, catechins, anethol or pinene), and in the modulation of metabolic regulation (capsicum, cinnamaldehyde, curcuma or garlic) may open the opportunity for future applications. However, stability of the product in the GI tract, description of the mechanisms of action and the impact of these changes on performance needs to be further demonstrated.

scholarly journals Does Feeding System Influence Parasitism in Black Bengal Goats in Bangladesh?

2013 ◽  
Vol 22 (1-2) ◽  
pp. 85-95 ◽  
Author(s):  
AKMA Rabbi ◽  
A Islam ◽  
M Anisuzzaman ◽  
S Majumder ◽  
MH Rahman
Keyword(s):  
Fecal Sample ◽  
Helminth Infection ◽  
Boophilus Microplus ◽  
Production Performance ◽  
Feeding System ◽  
Extensive System ◽  
Parasitic Burden ◽  
Demodex Sp ◽  
Feeding Systems ◽  
Intensive System

To study the parasitism in goats in relation to different feeding systems, 1110 goats from different areas of Jaypurhat, Tangail, Netrakona and Mymensingh districts were examined. By fecal sample examination, 76.5% goats were found to be infected with one or more species of endoparasites. In this study, 9 types of helminths’ ova were identified such as Fasciola gigantica (14.8%), Paramphistomum sp. (28.5%), Schistosoma indicum (3.2%), strongyles (35%), Strongyloides sp. (17.4%), Toxocara spp. (1.5%), Trichuris sp. (4.6%), Capillaria sp. (1.2%) and Moniezia sp. (3.7%). Two types of protozoa were also detected, namely, Eimeria sp. (7.1%) and Balantidium coli (5.5%). Along with these, five species of ectoparasites were found: two species were lice such as Damilinia caprae (13.9 %) and Linognathus vitulli (4.2%), and two species were ticks namely, Haemophysalis bispinosa (21.2%), Rhipicaphalus (Boophilus) microplus (3.6%) and one species was mite, namely, Demodex sp. (2.9%). Mean parasitic burden of Paramphistomum sp. (259.81 ± 3.35) was the highest followed by Eimeria sp. (224.1 ± 16.9) and Moniezia sp. (204.9 ± 19.7). Prevalence of helminths and protozoa was significantly (P<0.01) highest in extensive system (86.1%) followed by semi-intensive (76.3%) and intensive system (57.5%). Ova of Schistosoma indicum was absent in the fecal sample of goats of intensive system. Goats of extensive and semi-intensive systems were 4.6 and 2.4 times more susceptible to helminth infection than those of intensive system. Ectoparasitic infestation was the highest in semi-intensive system (59.7%) followed by extensive system (33.5%) and intensive system (8.2%). In conclusion, the present study suggests that feeding system has a great impact on the prevalence of parasites in Black Bengal goats. Further study can be carried out to determine the effect of parasitism in the production performance of Black Bengal goats.DOI: http://dx.doi.org/10.3329/pa.v22i1-2.16470 Progress. Agric. 22(1 & 2): 85-95, 2011

Effects of adding urea on fermentation quality of pruned persimmon branch silage and its digestibility, preference, nitrogen balance and rumen fermentation in beef cattle

2013 ◽  
Vol 85 (3) ◽  
pp. 219-226 ◽  
Author(s):  
Yang Cao ◽  
Yanqing Zang ◽  
Renlong Lv ◽  
Toshiyoshi Takahashi ◽  
Norio Yoshida ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Nitrogen Balance ◽  
Rumen Fermentation ◽  
Fermentation Quality

Effect of Forage:Concentrate Ratios in the diet and Intake Restriction on the Rumen Fermentation and Hormone Profiles of Finishing Beef Steers.

1994 ◽  
Vol 1994 ◽  
pp. 69-69
Author(s):  
C.L. Thorp ◽  
R.W.J. Steen ◽  
A.R.G. Wylie ◽  
J.D. McEvoy ◽  
C. Shaw
Keyword(s):  
Growth Factor ◽  
Beef Cattle ◽  
Energy Intake ◽  
Dry Matter ◽  
Rumen Fermentation ◽  
Fat Content ◽  
Carcass Composition ◽  
Dry Matter Intake ◽  
Beef Steers ◽  
Reducing Energy

Studies have shown that reducing energy intake by restricting dry matter intake (DMI) at a constant forage: concentrate (F:C) ratio is more effective at increasing carcass lean and reducing carcass fat content than is reducing energy intake by increasing the F:C ratio (1). Research at this Institute has also shown that, per megajoule of digestible energy (DE), diets restricted in this manner are 45 % more efficient at producing carcass lean.The mechanism by which these methods of restriction result in these differences in carcass composition has previously been assumed to be that of rumen fermentation. More recently however, the significance of rumen fermentation in controlling the carcass composition of beef cattle has been questioned (2,3).The aim of this experiment was to examine the effect of decreasing the F:C ratio, at constant DE and DMI, on both rumen and endocrinological parameters, in particular the hormones insulin and insulin like growth factor-1 (IGF-1), in finishing beef steers.

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