Conjugated Linoleic Acid in Rumen Fluid and Milk Fat, and Methane Emission of Lactating Goats Fed a Soybean Oil-based Diet Supplemented with Sodium Bicarbonate and Monensin

Li, X.Z.; Yan, Chunri; Long, R. J.; Jin, G.L.; Khuu, J. Shine; Ji, Byung-Ju; Choi, Seong‐Ho; Lee, H.G.; Song, Mi Kyoung

doi:10.5713/ajas.2009.90073

Cited by 13 publications

(9 citation statements)

References 45 publications

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“…Monensin is the most studied ionophore and routinely used as an animal nutrition supplement [58]. Saanen goats supplemented with oils with sodium bicarbonate and monensin showed a shift in the production of molar concentrations of acetate to propionate, thereby reducing the production of CH 4 [59]. Furthermore, up to a 75% reduction in CH 4 production was observed on addition of 10% encapsulated fumarate to the diet without any negative effect on animal growth [58].…”

Section: Impact Of Heat Stress On Rumen Functionmentioning

confidence: 99%

Climate Change and Goat Production: Enteric Methane Emission and Its Mitigation

Pragna

Chauhan

Sejian

et al. 2018

Animals

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Simple SummaryGiven that goats are considered more climate resilient than other ruminant species, research efforts are therefore needed to understand goat productivity during exposure to high ambient temperatures. Heat stress can affect the digestion and rumen fermentation pattern of goats, which contributes to the reduction in production performance in goats. Diet composition, breed and environmental stresses are common factors which negatively influence rumen function and enteric methane (CH4) emission. There are three mechanisms by which enteric CH4 can be reduced: targeting end product of digestion to propionate, providing alternate hydrogen sink and selectively inactivating rumen methanogens. The various strategies that can be implemented to mitigate enteric CH4 include nutritional interventions, management strategies and application of advanced biotechnological tools.AbstractThe ability of an animal to cope and adapt itself to the changing climate virtually depends on the function of rumen and rumen inhabitants such as bacteria, protozoa, fungi, virus and archaea. Elevated ambient temperature during the summer months can have a significant influence on the basic physiology of the rumen, thereby affecting the nutritional status of the animals. Rumen volatile fatty acid (VFA) production decreases under conditions of extreme heat. Growing recent evidence suggests there are genetic variations among breeds of goats in the impact of heat stress on rumen fermentation pattern and VFA production. Most of the effects of heat stress on rumen fermentation and enteric methane (CH4) emission are attributed to differences in the rumen microbial population. Heat stress-induced rumen function impairment is mainly associated with an increase in Streptococcus genus bacteria and with a decrease in the bacteria of Fibrobactor genus. Apart from its major role in global warming and greenhouse effect, enteric CH4 is also considered as a dietary energy loss in goats. These effects warrant mitigating against CH4 production to ensure optimum economic return from goat farming as well as to reduce the impact on global warming as CH4 is one of the more potent greenhouse gases (GHG). The various strategies that can be implemented to mitigate enteric CH4 emission include nutritional interventions, different management strategies and applying advanced biotechnological tools to find solution to reduce CH4 production. Through these advanced technologies, it is possible to identify genetically superior animals with less CH4 production per unit feed intake. These efforts can help the farming community to sustain goat production in the changing climate scenario.

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Section: Impact Of Heat Stress On Rumen Functionmentioning

confidence: 99%

Climate Change and Goat Production: Enteric Methane Emission and Its Mitigation

Pragna

Chauhan

Sejian

et al. 2018

Animals

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“…La inclusión dietaria de elevada cantidad de AS provoca que incremente la concentración del ácido graso C18:2 trans-10 cis-12 a nivel de biohidrogenación ruminal, el cual inhibe la enzima desaturasa-∆9 en la glándula mamaria y estimula una reducción en la síntesis de ácidos grasos de cadena corta y mediana, reflejándose en una caída en el contenido de grasa láctea (13) . Cabe mencionar que estos compuestos intermedios de la biohidrogenación del AS solamente influyen en el contenido de grasa, pero no en otros componentes del calostro, acorde a lo indicado por otros autores (27) .…”

Section: Producción Y Composición Del Calostrounclassified

Síntesis de calostro y desarrollo de las crías por efecto de la inclusión de aceite de soya en la dieta preparto de ovejas de pelo

Vazquez

Vicente-Pérez

Osorio

et al. 2017

Rev. Mex. Cienc. Pecu.

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El objetivo fue evaluar el efecto del nivel de inclusión de aceite de soya (AS) en la dieta pre-parto de ovejas de pelo sobre la producción y composición del calostro, desarrollo de las crías en los primeros 10 días postparto y la productividad de la oveja al parto. Un grupo de ovejas multíparas preñadas Katahdin x Pelibuey se asignaron a tres tratamientos (n=10), los cuales consistieron en dietas isoenergéticas e isoprotéicas que contenían: 0, 3 y 6 % de AS/kg de materia seca. Las dietas se ofrecieron del día 100 de gestación al parto. El peso y volumen del calostro aumentaron linealmente (P <0.05) conforme el nivel de AS en la dieta incrementó. El resto de las variables no presentaron efectos lineales ni cuadráticos (P >0.05) por nivel de AS. Entre ovejas alimentadas con y sin AS, o entre ovejas alimentadas con 3 y 6 % de AS, no se observaron diferencias (P>0.05) en peso vivo y condición corporal de las ovejas, así como en la composición del calostro, peso al nacimiento de las crías y el peso de camada al parto. Se concluye que la adición de 3 o 6 % de AS en la dieta preparto de ovejas de pelo no afectó la composición del calostro, el desarrollo de las crías ni la productividad de la oveja, pero sí afectó la producción de calostro, la cual fue mayor al nivel de 6 % de AS en la dieta. PALABRAS CLAVE: Ovejas preñadas, Nutrición materna, Aceite de soya, Producción de calostro. ABSTRACTThe objective was to evaluate the effect of the inclusion level of soybean oil (SBO) in the prepartum diet of hair ewes on the colostrum production and composition, development of lambs at d 10 post-lambing and ewe productivity at lambing. A group of pregnant multiparous ewes from Katahdin x Pelibuey genotype were assigned to three treatments (n=10), which consisted of isoenergetic and isoproteic diets containing: 0, 3 and 6 % of SBO/kg dry matter. Diets were offered from d 100 of gestation to lambing. The colostrum weight and volume increased linearly (P<0.05) as the SBO level in diet increased. The rest of variables did not show any linear or quadratic effect (P >0.05) as the SBO level changed from 0 to 6 %. Between ewes fed with or without SBO, or between ewes fed 3 and 6 % of SBO, no difference was detected (P >0.05) on live weight and body condition score of ewes, as well as on colostrum composition, lamb birth weight and litter weight at lambing. In conclusion, the addition of 3 or 6 % of SBO to prepartum diets of hair ewes did not affect the colostrum composition, the development of lambs or the ewe productivity, but affected the colostrum production, being greater when 6 % of SBO was used in the diet.

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“…[4][5][6] However, the occurrence of milk FA changes induced by dietary lipids would not be defined only by the activity of rumen bacteria, but should also take into account the time required by the FAs to leave the rumen, their absorption in the intestine, transportation to the mammary glands and subsequent incorporation to milk triglycerides. In this regard, studies with cannulated animals have demonstrated that the BH process is extremely quick, as well as that FAs absorbed in the duodenum can be observed in milk fat after 6 h. 7,8 Changes of milk FA contents after the inclusion of plant oils in the diet have been studied in cows, 9 ewes 10 and goats. 11,12 However, in most of those studies the milk sampling began 24 h after dietary supplementation.…”

Section: Introductionmentioning

confidence: 99%