MATHEMATICAL MODELLING OF GRASS GROWTH, BEEF CATTLE FEEDING FOR GRAZING AND WEIGHT MANAGEMENT

2002 ◽  
Author(s):  
DR. J. O. OSARENREN
Keyword(s):  
Beef Cattle ◽  
Mathematical Modelling ◽  
Weight Management ◽  
Cattle Feeding ◽  
Grass Growth

Beef cattle feeding costs as impacted by hay yield and quality

2021 ◽  
Author(s):  
J. Brett Rushing ◽  
Rocky W. Lemus ◽  
Joshua G. Maples ◽  
J. Daniel Rivera ◽  
Johnson C. Lyles
Keyword(s):  
Beef Cattle ◽  
Yield And Quality ◽  
Cattle Feeding ◽  
Feeding Costs

scholarly journals BOARD-INVITED REVIEW: Use of distillers by-products in the beef cattle feeding industry1

2008 ◽  
Vol 86 (5) ◽  
pp. 1223-1231 ◽  
Author(s):  
T. J. Klopfenstein ◽  
G. E. Erickson ◽  
V. R. Bremer
Keyword(s):  
Beef Cattle ◽  
Cattle Feeding ◽  
By Products

scholarly journals Metabolic Benefit of Bulls Being Fed Moringa Leaves Twigs and Branches as a Major Concentrate Ingredient

2021 ◽  
Vol 2 ◽  
Author(s):  
Nasrin Sultana ◽  
Nani Gopal Das ◽  
Md Ahsanul Kabir ◽  
Gautam Kumar Deb ◽  
Md Tarequl Islam
Keyword(s):  
Beef Cattle ◽  
Semen Quality ◽  
Nitrogen Loss ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Nutrient Metabolism ◽  
Cattle Feeding ◽  
Metabolizable Energy Intake ◽  
Motility Of Sperm ◽  
Urinary Nitrogen

The study was conducted to investigate nutrient metabolism and semen quality of bulls fed with moringa (Moringa oleifera) leaves, twigs, and branches as a major concentrate ingredient. Twenty-one Red Chittagong bulls of about 204 (±50) kg initial live weight (LW) were randomly divided into three equal LW groups. They were fed maize silage as a basal feedstuff for 65 days with the supplementation of concentrate mixtures at 1% of LW, consisting of either 0, 25, or 50% moringa mash on a fresh basis. Moringa mash was a sun-dried ground preparation of leaves, twigs, and branches of moringa. The results indicated that different levels of moringa in concentrate mixtures (0, 25, and 50%) did not change daily DM intake, digestibility, and LW gain of bulls (p > 0.05). However, increasing dietary moringa (up to 203 g/kg DM) significantly decreased production cost of methane (CH4) (methane emission [kg/kg gain] = 1.6422—[0.0059 × moringa intake, g/kg DM], n = 12, R2 = 0.384, P = 0.032) in a similar metabolizable energy intake level (0.21 ± 0.01 MJ/kg LW). Also, higher dietary moringa significantly reduced urinary nitrogen loss (urinary nitrogen [% digested nitrogen] = 43.0 – 0.069 × moringa intake [g/kg DM]; R2 = 0.3712, P = 0.034). Thus, increasing moringa by 1 g/kg DM decreased CH4 emission by 6 g/kg gain and absorbed nitrogen loss by 0.069 %. Also, progressive motility of sperm increased significantly (33.0, 51.0, and 60.1%, respectively; p = 0.03) in bulls fed with concentrate mixtures containing moringa at 0, 25, or 50%. It may be concluded that feeding moringa mash at 203 g/kg DM may decrease energy loss as methane and urinary nitrogen loss without impacting the production of beef cattle. Feeding moringa mash to beef cattle may abate dietary energy and nitrogen loss and consequently decrease the environmental pollution.

Effects of forage:Concentrate ratio in the diet and restricted dry matter intake on the performance and carcass composition of steers

1994 ◽  
Vol 1994 ◽  
pp. 68-68
Author(s):  
R.W.J. Steen
Keyword(s):  
Beef Cattle ◽  
Energy Intake ◽  
Dry Matter ◽  
Carcass Composition ◽  
Dry Matter Intake ◽  
Meat Production ◽  
Efficient Production ◽  
Cattle Feeding ◽  
Ad Libitum ◽  
Forage:Concentrate Ratio

The efficient production of lean beef suitable for current consumer demand necessitates effective rationing of beef cattle. Feeding standards for beef cattle given by ARC (1980) predict that a reduction in energy intake produces a large reduction in performance with little effect on the energy or fat contents of the gain. However previous studies have shown that diets containing a high proportion of grass silage may sustain lower levels of performance and result in a greater proportion of fat in the gain in both calves and finishing cattle, than when similar quantities of energy and protein are given in the form of high-concentrate diets. The effects of a change in energy intake on performance and carcass composition of beef cattle are therefore likely to depend on whether this change is achieved by restricting the quantity of food given or changing the forage: concentrate ratio of a diet given ad libitum.The present experiment was carried out to examine the effects of forage:concentrate ratio in the diet and ad libitum versus restricted dry matter intake on the performance, carcass composition and efficiency of lean meat production by steers.

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