Author: Marilyn BrownPublisher:
ISBN:
Category : Cattle
Languages : en
Pages : 1
Book Description
Protein Supplementation Increases Gains by Calves Grazing Growing Pastures
Author: Marilyn BrownEffects of Management and Nutrition of Beef Calves on Immunity and Performance
Author: Paul Arthur BeckPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 298
Book Description
Protein Supplementation Is Vital for Beef Cattle Fed with Tropical Pasture
Author: Leilson R. BezerraPublisher:
ISBN:
Category : Technology
Languages : en
Pages :
Book Description
The production of beef on pasture is one of the potentials of Brazilian agriculture, mainly due to the territorial extension and climatic conditions. Therefore, the production of beef on tropical pastures mainly consists of the use of tropical forages; when correctly handled, forage plants show good productivity and improvement in the nutritive value. Among main factors that affect the performance of beef cattle fed on pastures, the availability and quality of the pasture stand first. In tropical regions, during the dry period of the year, the production of forage as well as its nutritive value is diminished. Hence, it is necessary to use protein supplements as a feed strategy to promote increased intake and improved nutrient utilization efficiency by animals. In view of this, by-products of biodiesel from oilseeds, such as peanuts, cottonseed and sunflower seeds, with high nutritional values can be used as an animal feed alternative to the protein sources commonly used for the formulation of supplements. Protein supplementation contributes to an increase in live weight gain as well as improvement in ruminal microbiota activity and, consequently, potentiates nutrient utilization efficiency in beef cattle fed with tropical pasture.
Growing Cattle on Grass
Author: Edgar Fitzhugh SmithPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 24
Book Description
Descriptors: calves, cattle, grazing, pastures.
Evaluation of Protein Utilization in Low and High Protein Forage Sources and the Economic Value of Supplementing Field Peas (pisum Sativum) to Growing Cattle Grazing Crested Wheatgrass Pastures
Author: Braden C. TroyerPublisher:
ISBN:
Category : Forage plants
Languages : en
Pages : 86
Book Description
Field peas are widely grown in the panhandle of Nebraska; however, markets quickly become saturated. A two year experiment was conducted comparing field peas to dry distillers grains with solubles (DDGS) as a protein supplement. The objective was to establish a price producers could pay for field peas relative to DDGS. There was a significant difference in ADG due to type of supplement (P = 0.02). Field pea supplemented heifers had 10% lower ADG compared to DDGS supplemented heifers. Economically, this means if DDGS is priced at or $124.58/ 909 kg DM a producer could pay $2.89/ 27 kg, for field peas. Variable sources of grazed forages are used in cattle backgrounding systems, but in most systems metabolizable protein (MP) is limiting and rumen undegradable protein (RUP) supplement can meet this deficiency. The first objective was to determine if RUP is limiting and the second objective was to determine if highly digestible forages with rapid passage rate allow some rumen degradable protein (RDP) to bypass the rumen. A pooled analysis of growing cattle grazing forages demonstrated that average daily gain (ADG) increased with increased RUP supplement received, with the exception of animals grazing forages that were 17% crude protein (CP) or greater. A metabolism study evaluating high and low quality forages showed lower intakes and digestibility values for the lower quality forages. Rapid liquid passage rates suggest some degradable protein could be leaving the rumen before degradation. Numerous digestibility markers were used to evaluate markers in forage based diets.
Responses to Escape Protein Supplementation by Cattle Grazing Bromegrass/red Clover Pastures
Author: Marco Aurelio G. CostaPublisher:
ISBN:
Category :
Languages : en
Pages : 194
Book Description
Evaluation of Crude Protein Supplementation to Beef Cattle Grazing Late Growing Season Native Range
Author: Landon Garrett CanterburyPublisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 144
Book Description
Two experiments evaluated the effects of altering dietary protein on beef cattle performance and nutrient excretion. In the first study, concurrent experiments were conducted to evaluate the effect of protein supplementation to beef cattle grazing warm-season shortgrass forage during the late growing season. For all Exp., treatments consisted of a supplemented group (1.32 kg of a 39% CP fed 3 times a week) and a non-supplemented control group. In Exp. 1, cow final BW (P = 0.24) and ADG (P = 0.38) were not affected by treatment. There was no difference (P = 0.97) in cow final BCS regardless of treatment. Calf ADG (P = 0.54) and weaning weight (P = 0.45) were not affected by treatment. In Exp. 2, cow final BW (P = 0.39) and final BCS (P = 0.81) did not differ between treatments. Cow ADG (P = 0.07) tended to be greater when supplemented with 0.22 kg CP per day. Calf ADG (P = 0.50) and weaning weight (P = 0.11) did not differ between treatments. In Exp. 3, heifer final BW (P = 0.17) was not different between treatments. Heifer ADG (P = 0.02) was greater for supplemented heifers. Supplementing protein to cattle grazing late season medium quality forage is advantageous for increasing ADG in replacement heifers and potentially beneficial to improve condition in lactating primiparous cows. In a separate study, a commercially available condensed tannin (CT) extract (ByPro; Silva Team, Ontario, CA) was included in a cereal grain-based diet at 3 levels (0, 1, or 2% of diet, DM basis). No group by treatment interactions was detected (P ≥ 0.18) among the response variables. Provision of CT did not affect (P ≥ 0.64) DM intake or apparent total-tract DM digestion. Nitrogen intake was not affected (P = 0.58) by inclusion of CT in the diet, but fecal N output increased (P = 0.04) at 2% CT inclusion compared with control. However, there was no difference (P = 0.36) in urine N output among treatments. Nitrogen retention was less than (P = 0.03) with 2% CT than 0 or 1% CT. Proportion of total N excreted in urine decreased (P = 0.03) with CT supplementation at 1 or 2% in the diet. Similarly the proportion of total N excreted in feces increased (P = 0.03) with 1 or 2% CT inclusion. Site of N excretion was shifted away from urine and toward feces when CT was included in a complete diet fed to beef cattle.
The Effect of Protein Supplementation on Performance of Growing Ruminants Grazing Wheat Pasture
Author: Mary Elizabeth SmithPublisher:
ISBN:
Category :
Languages : en
Pages : 128
Book Description
Evaluation of Liquid Protein Supplementation for Growing Dairy Heifers Grazing Temporary Winter Pasture
Author: Randall Robert ConnPublisher:
ISBN:
Category : Dairy cattle
Languages : en
Pages : 204
Book Description
Pasture and Supplements for Grazing Animals
Author: Publisher:
ISBN:
Category : Animal feeding
Languages : en
Pages : 320
Book Description
"An up-to-date review of the pasture and supplementary feed resources available to the New Zealand pastoral livestock industry, and the energy and protein requirements of these livestock. The interactions between animals and their feed resources ultimately determine both the quantity and quality of the feed consumed and thus the level of animal production. An understanding of this area is key to the successful allocation of feed resources. Although the principles discussed in the early chapters are common to all grazing animals, certain aspects of their application are species or system specific, and chapters address these issues. The environmental impact of grazing pastures and supplementing grazing animals is also addressed."--NZSAP Web site.