Rumen fermentation pattern of dairy heifers fed restricted amounts of low, medium, and high concentrate diets without and with yeast culture

Lascano, G.J.; Heinrichs, A.J.

doi:10.1016/j.livsci.2008.12.007

Cited by 62 publications

(75 citation statements)

References 45 publications

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“…Optimal ammonia concentration of rumen for rumen microbial activity is more than 4.86 mM (McMurphy et al, 2011). Ammonia concentration found by Lascano & Heinrichs (2009) were lower than 2 mg/dl (5 mg/dL= 3.6 mM), which was the minimal NH 3 -N concentration for microbial growth in rumen. Levels of ammonia produced in this study were 3.9-4.6 mM.…”

Section: Quality Of Diets Based On In Vitro Methodsmentioning

confidence: 81%

“…The low ammonia concentration in this study could be related to the low degradability of protein source contained in each ration by microbes to produce ammonia. Protein sources in the rumen, partially can be degraded and cannot be degraded (Lascano & Heinrichs, 2009). The protein can be degraded into amino acids and ammonia, so that the concentration of ammonia is strongly influenced by the protein content in the diet (Lascano & Heinrichs, 2009).…”

Section: Quality Of Diets Based On In Vitro Methodsmentioning

confidence: 99%

“…Protein sources in the rumen, partially can be degraded and cannot be degraded (Lascano & Heinrichs, 2009). The protein can be degraded into amino acids and ammonia, so that the concentration of ammonia is strongly influenced by the protein content in the diet (Lascano & Heinrichs, 2009). The ammonia concentrations in this study were directly proportional to the crude protein content in each test feed; it's supported by Despal et al (2011).…”

Section: Quality Of Diets Based On In Vitro Methodsmentioning

confidence: 99%

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Comparative Study of Milk Production and Feed Efficiency Based on Farmers Best Practices and National Research Council

Lestari

Abdullah

Despal

2015

Med Pet

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This study aimed to compare local dairy farmer ration formula with national research council in producing higher feed efficiency and milk production. This study had two stages. The first stage was in vitro study of dairy farmer rations which have different raw materials (R3, R4, and R5) with NRC based ration (R2) and Demo Farm ration (R1). The variables measured in this stage were proximate composition, volatile fatty acid, ammonia, dry matter and organic matter digestibility. The first stage used a randomized block design with five treatments, three groups of ruminal fluid, and three replications. The second stage used nine lactating cows with three periods of lactation (one, three, and other) and used a randomized block design with three treatments, three groups, and one replication. Parameters measured were dry matter intake, manure score, milk production, body weight gain, body condition score, and technical and economical efficiencies. The first stage result showed that R1, R2, and R3 were three best rations in nutrient composition and fermentability (ammonia and volatile fatty acid concentrations were optimum for microbial growth and high digestibility), so in conclusion those three rations were the best rations and should be compared by in vivo method. The result of the second stage showed that all tested rations were not significantly different in milk production, performance and efficiency, so in conclusion those three rations have the same quality.Key words: dairy cattle, milk production, profitability, rations test ABSTRAK Tujuan penelitian adalah membandingkan ransum peternak dengan ransum yang disusun berdasarkan National Research Council (NRC) dalam meningkatkan efisiensi pakan, produksi susu, serta profitabilitas usaha. Penelitian terdiri atas dua tahap. Tahap pertama merupakan uji kualitas ransum peternak berbeda formula (based practise) (R3, R4, dan R5) dari ransum berdasarkan NRC (R2) dan Demo Farm (R1) secara in vitro. Variabel yang diamati adalah komposisi proksimat, volatile fatty acid (VFA), amonia, dan kecernaan bahan kering dan organik. Rancangan percobaan yang digunakan pada tahap satu ialah rancangan acak kelompok dengan lima perlakuan, tiga kelompok cairan rumen dan tiga ulangan. Penelitian tahap dua menggunakan sembilan sapi FH yang terbagi ke dalam tiga kelompok periode laktasi (dua, tiga, dan lainnya) dan menggunakan rancangan acak kelompok, yaitu tiga perlakuan, tiga kelompok laktasi, dan satu ulangan. Peubah yang diamati adalah konsumsi, produksi susu, manure score, pertambahan bobot badan, body condition score (BCS), efisiensi, dan harga ransum. Percobaan tahap satu menunjukkan bahwa R1, R2, dan R3 memiliki kandungan nutrien dan fermentabilitas yang lebih baik (VFA dan amonia optimum untuk pertumbuhan mikrob rumen, serta kecernaan bahan kering dan organik lebih tinggi) sehingga disimpulkan bahwa ketiga ransum tersebut merupakan ransum terbaik dan perlu diujibandingkan secara in vivo. Hasil penelitian tahap dua menunjukkan bahwa ketiga ransum tidak menghasilkan perbedaan y...

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Section: Quality Of Diets Based On In Vitro Methodsmentioning

confidence: 81%

Section: Quality Of Diets Based On In Vitro Methodsmentioning

confidence: 99%

Section: Quality Of Diets Based On In Vitro Methodsmentioning

confidence: 99%

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Comparative Study of Milk Production and Feed Efficiency Based on Farmers Best Practices and National Research Council

Lestari

Abdullah

Despal

2015

Med Pet

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“…The same trend was recorded for digestible crude protein (DCP). Addition of Sc to the ration of large animals improved in-vitro DM and OM disappearance and increased in-vivo digestibility of DM, CP and CF [15].…”

Section: Effect Of Yeast On Digestibility and Nutritive Valuesmentioning

confidence: 98%

Importance of Yeast in Ruminants Feeding on Production and Reproduction

Habeeb¹

2017

EEB

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Abstract:Benefits of yeast supplements for ruminants are shifts in microbial population numbers and species, favorable changes in volatile fatty acids contents of rumen, positive effects on rumen ammonia disappearance, positive effects on rumen pH, promotes metabolism digestion, increase in fiber digestibility and changes in microbial protein and amino acids in large intestine. In addition, benefits of Yeast supplements for ruminants are improving the overall intestinal bacteria balance, reducing digestive problems, lower risk of acidosis and reduction in the humidity of bedding resulting in lower stress levels. Feeding on feed mixture contained Active dry yeast (ADY) improved the appetite of animals which lead to increase the feed intake and consequently increased the daily weight gain of the treated animals. From the physiological point of view, adding ADY caused significant increase the levels of both T 4 and T 3 hormones which lead to increase the protein and fat biosyntheses. Moreover, benefits of yeast supplements for ruminants are increased milk production and improvements in milk quality, improves milk selenium content, reduced mastitis and somatic cell count, less stillbirths, weak neonates, improves fertility, reduced incidence of retained placenta, improved immune response, increases immune resistance, high content in B-vitamins and trace elements, enhances weight gain and feed utilization.

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“…However, some studies found decrease 18 or increase 20 . The response could be associated with the characteristics of the diet.…”

Section: 517mentioning

confidence: 96%

Canlı Maya Kültürünün (Saccharomyces cerevisiae) Toklularda Rumen Fermentasyonu ve Besin Madde Yıkılabilirliği Üzerine Etkileri

İnal¹,

Gürbüz²,

Çoşkun³

et al. 2009

Kafkas Univ Vet Fak Derg

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SummaryThis study was carried out in two experiments. Experiment 1 was conducted with six ruminally-cannulated one-year old Kangal Akkaraman male lambs, using a crossover design with 2 periods to determine the effects of live yeast culture supplementation on rumen fermentation. Yearlings were either supplemented with 4 g/d of Saccharomyces cerevisiae (BeneSacc, 4x10 9 CFU/g) or not supplemented (control). Animals were penned individually, and were fed a diet composed of 25% forage and 75% concentrate for sixteen days. Rumen fluid was sampled on day 16, 0 h (before feeding), 3 h and 6 h after feeding. Rumen pH, the numbers of protozoa, ammonia-N and volatile fatty acids (VFA) were determined in samples. Molar proportions of acetate were decreased, and propionate was increased with supplementation of live yeast culture. No differences were observed for ruminal pH, protozoa population, total VFA and ammonia-N concentrations, between treatments. In Experiment 2, in situ nutrient degradability of barley grain, corn dried distillers grains with solubles (DDGS) and wheat straw were determined. Live yeast culture supplementation did not affect dry matter (DM) degradability of barley, DDGS or straw, crude protein (CP) degradability of DDGS, nor neutral detergent fiber (NDF) degradability of straw. But, it reduced the potential degradability of DDGS in rumen.. Keywords: Yeast, Yearling Lamb, Rumen fermentation, Degradability Canlı Maya Kültürünün (Saccharomyces cerevisiae) Toklularda Rumen Fermentasyonu ve Besin Madde Yıkılabilirliği Üzerine Etkileri ÖzetBu çalışma 2 deneme şeklinde yürütüldü. Deneme 1, canlı maya kültürü ilavesinin rumen fermentasyonu üzerine etkilerini tespit etmek için, rumen kanülü yerleştirilmiş 6 baş bir yaşlı Kangal Akkaraman erkek toklu ile çapraz deney düzenine göre iki dönem halinde yürütüldü. Grubun biri kontrol olarak tutulurken, diğerinin yemlerine günlük 4 g Saccharomyces cerevisiae içeren canlı maya (BeneSacc, KOB=4x10 9 ) kültürü ilave edildi. Hayvanlar bireysel bölmelerde tutuldu ve %25'i yonca, %75'i kesif yemden oluşan rasyonlarla 16 gün süreyle beslendi. 16. günde hayvanlardan yemleme öncesi, yemlemeden 3 ve 6 saat sonra rumen sıvısı örnekleri alındı. Örneklerde pH, protozoon sayısı, amonyak N'u ve uçucu yağ asitleri (UYA) belirlendi. Canlı maya kültürünün ilavesi ile asetik asit oranı azaldı, propiyonik asit oranı arttı. Ruminal pH, protozoon konsantrasyonu, toplam UYA'leri ve amonyak N'u, bakımından muameleler arasında farklılık gözlenmedi. İkinci denemede; arpa, kurutulmuş mısır damıtma ürünü (KMDÜ) ve samanın in situ besin madde yıkılabilirlikleri tespit edildi. Canlı maya kültürü ilavesi arpa, KMDÜ, samanın KM yıkılabilirliğini, KMDÜ'nün ham protein, samanın NDF yıkılabilirliğini etkilemedi. Fakat KMDÜ'nün rumende potansiyel yıkılabilirliğini düşürdü.

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Rumen fermentation pattern of dairy heifers fed restricted amounts of low, medium, and high concentrate diets without and with yeast culture

Cited by 62 publications

References 45 publications

Comparative Study of Milk Production and Feed Efficiency Based on Farmers Best Practices and National Research Council

Comparative Study of Milk Production and Feed Efficiency Based on Farmers Best Practices and National Research Council

Importance of Yeast in Ruminants Feeding on Production and Reproduction

Canlı Maya Kültürünün (Saccharomyces cerevisiae) Toklularda Rumen Fermentasyonu ve Besin Madde Yıkılabilirliği Üzerine Etkileri

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