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The Effects of Protein Supplementation on Performance of Beef Cattle Grazing Native Mixedgrass Range in Western Kansas

2015
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Release : 2015
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Book Synopsis The Effects of Protein Supplementation on Performance of Beef Cattle Grazing Native Mixedgrass Range in Western Kansas by : Carson McMullen

Download or read book The Effects of Protein Supplementation on Performance of Beef Cattle Grazing Native Mixedgrass Range in Western Kansas written by Carson McMullen. This book was released on 2015. Available in PDF, EPUB and Kindle. Book excerpt: Cattle consuming low-protein forage (7% CP) require additional supplemental protein to maintain BW and BCS. Daily delivery of protein supplements places undue financial burden on cattle producers. Supplementing cows as infrequently as once every 6 d) has resulted in similar changes cow BW and BCS when compared to daily supplementation. As calving season nears, producers may wish to increase supplementation frequency. The responses to a change in supplementation frequency during the third trimester of gestation have not been widely investigated. Therefore, our objective in Study 1 was to evaluate the effect of altering supplementation frequency during late gestation on performance of spring-calving cows grazing low-quality, dormant native range and supplemented with dried distillers grains with solubles (DDG). Angus x cows (n = 238; mean age = 6 ± 2.5 yr; average initial BW = 618 ± 56.2 kg; average initial BCS = 5.7 ± 0.03) were stratified by age, BW, BCS, and assigned randomly to 1 of 4 treatments: 1) DDG daily (D1); 2) DDG once every 6 d (D6); 3) DDG daily from d 1 to d 60 and then every 6 d (D1-D6); 4) DDG every 6 d from d 1 to d 60 and then daily (D6-D1). Treatments were initiated 100 d prior to expected onset of calving. Cow BW and BCS were measured every 28 d. Cows were sorted daily before supplementation at 0830 h. Supplement delivery was calculated to meet dietary CP requirements. Increasing supplementation frequency 28 d prepartum negatively affected final BW and BW change from d 61-88 for the D6-D1 supplementation group (P 0.05) compared to other supplementation groups. Cow BW change for the study (d 1-88) was also less (P

The Effects of Nutrition and Reproductive Strategies on Performance of Beef Cattle Grazing Native Shortgrass Range in Western Kansas

2013
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Release : 2013
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Book Synopsis The Effects of Nutrition and Reproductive Strategies on Performance of Beef Cattle Grazing Native Shortgrass Range in Western Kansas by : Bradley Wayne Bennett

Download or read book The Effects of Nutrition and Reproductive Strategies on Performance of Beef Cattle Grazing Native Shortgrass Range in Western Kansas written by Bradley Wayne Bennett. This book was released on 2013. Available in PDF, EPUB and Kindle. Book excerpt: Cattle grazing dormant native range (7% crude protein; CP) require supplementation of additional protein to sustain body weight (BW) and body condition score (BCS). Daily delivery of these supplements is an economic burden to cattle producers faced with challenging economic circumstances. Supplementing cows infrequently (as little as once/week) has produced equivalent BW and BCS changes compared to daily delivery. Dried distiller's grains with solubles (DDGS) provides more ruminally-undegradable protein (RUP; 50-60%) compared to traditional oilseed-meal supplements (i.e. soybean meal) that are50% ruminally-degradable protein (RDP). Therefore, our objective was to evaluate the effects of supplementation frequency on performance, reproductive success, eating behavior, and subsequent calf performance of spring-calving cows supplemented with DDGS. No differences in ending BW (P = 0.69) and BCS (P = 0.49), or changes in BW and BCS over the supplementation period (P = 0.82 and 0.70, respectively) were observed among cows supplemented every d, every 3 d, or every 6 d. Calf BW at birth, weaning weight (WW), and average daily gain (ADG) were similar among treatments (P = 0.19, 0.12, and 0.10, respectively). First-service conception rate (FSCR) and final pregnancy rate (PR) were also not affected by supplementation frequency (P = 0.62 and 0.76, respectively). The development of replacement heifers is a large expense for cow-calf producers. Improved breeding and heifer development strategies aimed at ensuring the success of replacement females have been developed but reproductive failure still remains a problem. The stress associated with breeding and handling procedures may decrease reproductive success. Therefore, the objective was to determine if intramuscular administration of flunixin meglumine (1.1 mg/kg BW) 14 days post-breeding would improve FSCR and PR in non-transported replacement heifers. Under the conditions of our study, flunixin meglumine did not improve (P = 0.87) first service conception rate above that of control heifers (41.2% and 42.3%, respectively). Final pregnancy rate also was not different between treatments and averaged 81.8% (P = 0.40).

Evaluation of Crude Protein Supplementation to Beef Cattle Grazing Late Growing Season Native Range

2016 Beef cattle
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Release : 2016
Genre : Beef cattle
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Book Synopsis Evaluation of Crude Protein Supplementation to Beef Cattle Grazing Late Growing Season Native Range by : Landon Garrett Canterbury

Download or read book Evaluation of Crude Protein Supplementation to Beef Cattle Grazing Late Growing Season Native Range written by Landon Garrett Canterbury. This book was released on 2016. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Influence of Low-level Fall Protein Supplementation on Performance and Forage Utilization by Beef Cattle Grazing Tallgrass Prairie

2003
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Release : 2003
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Book Synopsis Influence of Low-level Fall Protein Supplementation on Performance and Forage Utilization by Beef Cattle Grazing Tallgrass Prairie by : Donald Albert Llewellyn

Download or read book Influence of Low-level Fall Protein Supplementation on Performance and Forage Utilization by Beef Cattle Grazing Tallgrass Prairie written by Donald Albert Llewellyn. This book was released on 2003. Available in PDF, EPUB and Kindle. Book excerpt:

Effect of Protein Supplementation on Performance, Water Intake, and Travel of Beef Cattle Grazing Semidesert Rangeland in Southcentral New Mexico

1988 Beef cattle
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Release : 1988
Genre : Beef cattle
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Book Synopsis Effect of Protein Supplementation on Performance, Water Intake, and Travel of Beef Cattle Grazing Semidesert Rangeland in Southcentral New Mexico by : Robert Rabih Rouda

Download or read book Effect of Protein Supplementation on Performance, Water Intake, and Travel of Beef Cattle Grazing Semidesert Rangeland in Southcentral New Mexico written by Robert Rabih Rouda. This book was released on 1988. Available in PDF, EPUB and Kindle. Book excerpt:

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