VALEUR ALIMENTAIRE DE L'ENSILAGE DE MAIS-LUZERNE POUR L'ALIMENTATION DES BOUVILLONS

1982 ◽  
Vol 62 (3) ◽  
pp. 959-961
Author(s):  
PAUL FLIPOT ◽  
S. PAGE ◽  
G. LALANDE
Keyword(s):  
Key Words ◽  
Soybean Meal ◽  
Corn Silage ◽  
Protein Supplement ◽  
Alfalfa Silage

Sixty-six Hereford steers were fed rations of corn silage, or corn silage plus 400 g∙head−1∙day−1 of soybean meal, or a mixture of corn and alfalfa silage (ratio 1:1 on a wet basis at ensiling). Alfalfa, when mixed with forage corn at ensiling, can be used as a protein supplement to replace a part of the soybean meal but corn silage alone may not be recommended. Key words: Ensilage, maïs-luzerne, bouvillons

Effect of live-yeast culture and lasalocid supplementation on performance of growing–finishing steers fed alfalfa-silage, corn-silage and high-grain diets sequentially

1994 ◽  
Vol 74 (3) ◽  
pp. 563-566 ◽  
Author(s):  
P. S. Mir ◽  
Z. Mir
Keyword(s):  
Key Words ◽  
Carcass Characteristics ◽  
Corn Silage ◽  
Carcass Quality ◽  
Yeast Culture ◽  
Key Words Yeast ◽  
Finishing Steers ◽  
Alfalfa Silage ◽  
Live Yeast

Trials were conducted to determine the effect of supplementing feedlot diets with live-yeast culture (YC), lasalocid (LAS) or YC + LAS on intake, growth and carcass characteristics of steers. Dietary additives in either 96% corn-silage or 75% dry-rolled barley-based diets increased (P < 0.05) final weights and carcass weights of steers. Key words: Yeast, lasalocid, steers, carcass quality, growth

The effects of ruminal protozoa on selenium status in sheep

1991 ◽  
Vol 71 (4) ◽  
pp. 1265-1268 ◽  
Author(s):  
M. de S. Dayrell ◽  
M. Ivan ◽  
M. Hidiroglou
Keyword(s):  
Key Words ◽  
Soybean Meal ◽  
Selenium Concentration ◽  
Corn Silage ◽  
Kidney Cortex ◽  
Selenium Status ◽  
Plasma Selenium

Fauna-free and faunated Canadian Arcott rams (21 and 23, respectively) were fed a corn silage diet supplemented with soybean meal for 110 d. Ruminal protozoa had no effect (P > 0.05) on plasma selenium concentrations but decreased the selenium concentration in the kidney cortex (P < 0.01), liver (P < 0.05), and spleen (P < 0.01). Key words: Sheep, selenium, Protozoa

Evaluation of seal meal as a protein supplement for growing steers

1997 ◽  
Vol 77 (3) ◽  
pp. 529-531
Author(s):  
E. Charmley ◽  
E. O'Reilly
Keyword(s):  
Key Words ◽  
Soybean Meal ◽  
Degradation Rate ◽  
Growth Response ◽  
Protein Source ◽  
Quadratic Growth ◽  
Protein Supplement ◽  
Metabolizable Protein

This experiment evaluated the suitability of dried seal meal (SM) as a protein supplement for growing steers. Protein in the SM had an effective degradability of 65% and a slow degradation rate in the rumen. There was a positive quadratic growth response to replacing soybean meal (SBM) with SM (P < 0.05). We attribute this response to optimized concentrations of fat and metabolizable protein supplied by the SM/SBM mixtures. We conclude that SM is a beneficial protein source for growing steers when combined with SBM. Key words: Growing steer, seal, protein supplement, silage

FLOW AND SOLUBLE PROPORTIONS OF ZINC, MANGANESE, COPPER AND IRON IN THE GASTROINTESTINAL TRACT OF SHEEP FED CORN OR ALFALFA SILAGES

1983 ◽  
Vol 63 (1) ◽  
pp. 163-171 ◽  
Author(s):  
M. IVAN ◽  
D. M. VEIRA ◽  
M. IHNAT
Keyword(s):  
Trace Elements ◽  
Gastrointestinal Tract ◽  
Formic Acid ◽  
Key Words ◽  
Terminal Ileum ◽  
Rumen Fluid ◽  
Latin Square ◽  
Corn Silage ◽  
Apparent Absorption ◽  
Alfalfa Silage

A set of four sheep, each fitted with a rumen cannula and a re-entrant cannula in the ascending duodenum and terminal ileum, were used for collection of rumen, duodenal and ileal digesta. A second set of four normal sheep was used for collection of feces and urine. The sheep were fed corn silage, urea-added corn silage, formic acid-treated alfalfa silage or wilted alfalfa silage in latin square design. Soluble proportions of manganese in rumen fluid, ileal digesta and feces were much lower on alfalfa silages than on corn silages although the soluble proportions in the duodenal digesta were not different. The soluble proportions of zinc, copper and iron were not as consistent as those of manganese. The apparent absorption of zinc was negative on alfalfa silages, and was associated with the lower soluble proportion of zinc in duodenal digesta and higher in the ileal digesta, as compared to corn silages. The apparent absorption of iron was much higher on corn silages than on alfalfa silages. Addition of urea to corn at ensiling resulted in an improvement of apparent absorption of copper. Key words: Trace elements, solubility, absorption, corn silage, alfalfa silage, sheep

EVALUATION OF AN ALFALFA SILAGE-CORN SILAGE FEEDING PROGRAM FOR DAIRY HEIFERS FROM 200 TO 300 KG BODY WEIGHT

1987 ◽  
Vol 67 (3) ◽  
pp. 873-876
Author(s):  
A. S. ATWAL ◽  
T. R. BATRA
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Chemical Composition ◽  
Key Words ◽  
Corn Silage ◽  
Dairy Heifers ◽  
Feeding Program ◽  
Alfalfa Silage

An alfalfa silage-corn silage diet (15% concentrate) was similar in chemical composition to a hay-haylage-alfalfa silage-corn silage diet (25% concentrate). When fed to dairy heifers (238–350 d of age), the two diets resulted in very similar rates of gain (969 vs. 950 g d−1), heart girth and withers height. Heifers of both of these groups experienced considerable breeding problems. In a silage diet, grain content and its cost may be further reduced to obtain the desired rate of gain of about 700 g d−1 for dairy heifers growing from 200 to 300 kg body weight. Key words: Silage diet, growth rate, dairy heifers

Duodenal flow of nitrogen following protozoal inoculation of fauna-free sheep fed a diet supplemented with casein or soybean meal

1991 ◽  
Vol 71 (3) ◽  
pp. 793-801 ◽  
Author(s):  
M. Ivan ◽  
M. Hidiroglou ◽  
H. V. Petit
Keyword(s):  
Amino Acids ◽  
Soybean Meal ◽  
Rumen Fluid ◽  
Mixed Population ◽  
Corn Silage ◽  
Protein Supplement ◽  
Insoluble Protein ◽  
Acid Detergent Fibre ◽  
Supplemental Protein ◽  
Ciliate Protozoa

Fauna-free sheep, equipped with a rumen cannula and a duodenal re-entrant cannula, were fed a corn silage diet supplemented with casein (CA diet) or soybean meal (SBM diet). Eighteen days later the sheep were inoculated via the rumen cannula with a mixed population of ciliate protozoa. Rumen fluid and duodenal digesta were sampled for 4 d before the inoculation and for 13 d following the inoculation. A stable protozoal population was established within 8 d. Protozoa increased (P < 0.05) the digestion of organic matter in the stomach of sheep fed both the CA and the SBM diet, but the effects of supplemental protein and protein × protozoa interaction were not significant (P > 0.05). The stomach digestion of acid detergent fibre was not affected (P > 0.05) by protozoa or by the source of supplementary protein, but the protein × protozoa interaction was significant (P < 0.05). The disappearance of nitrogen from the stomach was lower (P < 0.01) for the SBM diet than for the CA diet and was increased (P < 0.05) for both diets in the presence of protozoa, but the effect of protein × protozoa interaction was not significant (P > 0.05). The ruminal presence of protozoa decreased the flow from the stomach of individual amino acids (from P < 0.05 to P < 0.001) and of nonammonia nitrogen (P < 0.05). However, the decreases were greater (from P < 0.05 to P < 0.001) for the CA diet than for the SBM diet, but the effects of protein × protozoa interaction were not significant (P > 0.05). The ruminal presence of protozoa increased (P < 0.05) the flow from the stomach of ammonia-N for SBM diet but not for CA diet. The effects of protein and of protein × protozoa interaction were not significant (P > 0.05). It was concluded that although ruminal protozoa do not metabolize casein, their effect of decreasing amino acid flow from the stomach can be greater for diets containing casein (soluble protein) as protein supplement than for those containing soybean meal (insoluble protein). Key words: Duodenal flow, nitrogen, protozoa, casein, soybean meal, sheep

EFFECT OF α-TOCOPHEROL SUPPLEMENTATION TO DAIRY COWS ON MILK AND PLASMA α-TOCOPHEROL CONCENTRATIONS AND ON SPONTANEOUS OXIDIZED FLAVOR IN MILK

1990 ◽  
Vol 70 (2) ◽  
pp. 561-570 ◽  
Author(s):  
ANNE-MARIE ST-LAURENT ◽  
J.W.G. NICHOLSON ◽  
M. HIDIROGLOU ◽  
M. SNODDON
Keyword(s):  
Vitamin E ◽  
Dairy Cows ◽  
Key Words ◽  
Soybean Meal ◽  
Dairy Cow ◽  
Basal Diet ◽  
Tocopheryl Acetate ◽  
Alfalfa Silage ◽  
Spontaneous Oxidation ◽  
Key Words Spontaneous

An α-tocopherol supplementation study was conducted with 12 Holstein cows, assigned to one of three dietary α-tocopherol levels, 0, 700, and 3000 IU cow−1 d−1, as dl-α-tocopheryl acetate. Cows were fed a basal diet of alfalfa silage and a barley-corn-soybean meal grain mix. The study consisted of a pretreatment (wk 0), a treatment (wk 1 to 5) and a posttreatment phase (wk 6 and 7). Peak milk α-tocopherol levels were observed at wk 1 for the 700 IU group and at wk 2 (P < 0.05) for the 3000 IU group. During wk 2 to 5 milk α-tocopherol concentrations were highest for the 3000 IU group and peaked at 22.0 μg g−1 lipid; plasma α-tocopherol levels increased by 0.7 and 1.3 μg mL−1 for the 700 and 3000 IU groups. By the end of the posttreatment phase, milk α-tocopherol concentrations had returned to wk 0 levels. A field study was conducted of four herds (142 cows) with a chronic spontaneous oxidized flavor (SOF) milk problem. The herds were fed α-tocopherol at 0, 700 and 3000 IU cow−1 d−1 in a changeover design of 2-wk periods followed by access to spring pasture for 4-wk. Milk flavor improved when higher levels of α-tocopherol were fed and SOF was minimal when pasture was grazed. The percentage of cows in the herds producing SOF milk was 68, 61, 56, and 8 for the 0, 700 and 3000 IU d−1 treatments and pasture, respectively. α-Tocopherol levels were highest (P < 0.05) in milk for the 700 IU d−1 level of feeding and in plasma (P < 0.05) when pasture was consumed. Milk and plasma α-tocopherol levels did not correlate well with improved flavor scores. Key words: Spontaneous oxidation, milk, α-tocopherol, dairy cow, flavor, vitamin E

EFFECTS OF PSYCHOLOGICAL STRESS, ACUTE COLD STRESS, AND DIET ON FORESTOMACH CONTRACTIONS IN CATTLE

1988 ◽  
Vol 68 (2) ◽  
pp. 399-407 ◽  
Author(s):  
A. LIRETTE ◽  
J. M. KELLY ◽  
L. P. MILLIGAN ◽  
R. J. CHRISTOPHERSON
Keyword(s):  
Heart Rate ◽  
Cold Stress ◽  
Key Words ◽  
Psychological Stress ◽  
Latin Square ◽  
Alfalfa Hay ◽  
Alfalfa Silage ◽  
Acute Psychological Stress ◽  
Key Words Cold

Studies were made on forestomach contraction frequencies as affected by diet (brome hay, alfalfa hay, alfalfa silage and barley concentrate diet), acute cold stress and acute psychological stress. Four 15-mo-old steers fitted with ruminal fistulae were used in a 4 × 4 Latin square design. Diets did not influence contractile frequencies of the forestomachs, and did not interact with the effects of the stresses. Acute cold stress and psychological stress both produced significant increases of forestomach contraction frequencies and of heart rate. Key words: Cold stress, psychological stress, forestomach contractions, heart rate

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