Effects of dietary starch types on rumen fermentation and blood profile in goats

Wang, S. P.; Wang, W. J.; Tan, Zhiliang

doi:10.17221/8666-cjas

Cited by 23 publications

(15 citation statements)

References 25 publications

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“…Leptin was not affected by the two diets in both species, as previously observed by Cannas et al [5] in mid-lactating sheep and by Wang et al [29] in dairy goats fed a normal or high-amylose starch at equal dietary starch concentrations. The lack of effect of diet could be related to the fact that leptin depends more on the overall energy balance than on the dietary source, as already observed by Cannas et al [5].…”

Section: Effect Of the Utilization Of High-starch And Low-starch Diet In Mid-lactation On The Evolution Of Metabolites And Hormonessupporting

confidence: 83%

“…In previous studies on sheep, GH was higher with a low-starch diet than a high-starch diet (1.43 vs. 1.23 ng/mL; p < 0.02) [ 5 ], probably because the energy intake and balance were either higher in the high-starch diet or did not vary between high-starch and low-starch diets (3.28 vs. 3.83 ng/mL, respectively; p > 0.2) [ 6 ], and the dietary energy intake was similar between treatments. Growth hormone concentration in mid-lactating goats was higher for high-amylose starch (the least degradable starch at rumen level) than for normal starch diets (2.55 vs. 1.65 ng/mL; p = 0.06) at equal dietary starch concentrations [ 29 ], suggesting that GH is increased by diets that provide more rumen escape starch and, thus, higher intestinal glucose absorption. The higher GH concentrations observed in goats than in ewes are probably associated with the higher milk yield and lower energy balance, as suggested by the lower BCS accumulation, of goats in our experiment, confirming the important galactopoietic activity of this hormone.…”

Section: Discussionmentioning

confidence: 99%

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Dietary Starch Concentration Affects Dairy Sheep and Goat Performances Differently during Mid-Lactation

Lunesu

Decandia

Molle

et al. 2021

Animals

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Evolution of milk production, body reserves and blood metabolites and their relationships with dietary carbohydrates were compared in 30 Sarda dairy ewes and 26 Saanen dairy goats in mid-lactation. From 92 to 152 ± 11 days in milk (DIM), each species was allocated to two dietary treatments: high-starch (HS: 20.0% starch, on DM basis) and low-starch (LS: 7.8% starch, on DM basis) diets. In mid-lactating goats, the HS diet increased fat-corrected milk yield (FCM (3.5%); 2.65 vs. 2.53 kg/d; p = 0.019) and daily milk net energy (NEL; p = 0.025), compared to the LS diet. The body condition score (BCS) was not affected. In mid-lactating ewes, the LS diet increased FCM (6.5%) (1.47 vs. 1.36 kg/d; p = 0.008), and NEL (p = 0.008), compared to the HS diet. In addition, BCS was greater in HS than in LS ewes (3.53 vs. 3.38; p = 0.008). Goats had a higher growth hormone (GH) and lower insulin concentration than ewes (GH: 2.62 vs. 1.37 ng/mL; p = 0.04; insulin: 0.14 vs. 0.38 µg/L; p < 0.001 in goats and ewes, respectively). In conclusion, in mid-lactation, the two species responded differently to dietary carbohydrates, probably due to differences in the concentration of GH and insulin. The HS diet favored milk yield in goats and body reserve accumulation in ewes. In ewes, the partial replacement of starch with highly digestible fiber increased energy partitioning in favor of milk production.

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Section: Effect Of the Utilization Of High-starch And Low-starch Diet In Mid-lactation On The Evolution Of Metabolites And Hormonessupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Dietary Starch Concentration Affects Dairy Sheep and Goat Performances Differently during Mid-Lactation

Lunesu

Decandia

Molle

et al. 2021

Animals

View full text Add to dashboard Cite

show abstract

“…Weak acidity provides the best conditions for rumen microorganisms to survive, which is conducive to the digestion and degradation of fibre and production of volatile fatty acids (Kingamkono et al 1994). Degradation of starch and cellulose by rumen microorganisms to produce volatile fatty acids will reduce the rumen pH, while the pH value of rumen would be increased by degrading protein and producing ammonia (Wang et al 2016;Asizua et al 2018). The BP has higher crude protein content than silage, but lower starch content.…”

Section: Meat Qualitymentioning

confidence: 99%

Productive and metabolic increments of the inclusion of Broussonetia papyrifera to replace maize silage in growing goats

Jin¹,

Xu²,

Shen³

et al. 2020

Czech J. Anim. Sci.

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The study was conducted to investigate the effects of Broussonetia papyrifera (BP) on growth performance, rumen fermentation, digestion and meat quality in Huanghuai white goats. Diets were developed with increasing doses of BP to replace maize silage [0% (control), 15% (BP15), 30% (BP30) and 45% (BP45)]. The design was completely randomized with 4 groups of 10 animals each, totalizing 40 animals (aged 150 ± 10 days and body weight of 25.32 ± 0.52 kg). Final body weight, average daily gain and average daily feed intake increased (linear and quadratic, P < 0.05) as BP increased in the diet. The highest body weight and average daily gain were seen in the BP30 group. Feed conversion ratio also improved significantly (linear and quadratic, P < 0.05) with the increasing level of BP. Although the concentration of microbial protein (MCP) in a linear (P = 0.0028) and quadratic (P = 0.0035) fashion with increasing level of BP, however, NH<sub>3</sub>-N in a quadratic (P = 0.0841) fashion with increasing level of BP. Crude protein was increased with increasing BP in the diets (linear and quadratic, P < 0.05). Nitrogen intake, urinary excretion nitrogen and nitrogen retention were significantly improved (linear and quadratic, P < 0.05) with dietary BP addition in goats. Dietary BP supplementation increased pH (linear and quadratic, P < 0.05) and tended to reduce L* (lightness) (linear and quadratic, P < 0.05). Additionally, the redness value of meat was significantly improved by BP addition (linear and quadratic, P < 0.05). The inclusion of BP in the goat diet promotes growth and increases the digestibility of crude protein in addition to improving the meat colour and rumen fermentation.

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“…Other researchers reported hypoglycemia at the onset of lactation, especially in high-producing dairy goats, which are related to increasing milk lactose synthesis [ 32 , 33 ]. However, in diets containing high levels of fermentable starch, Wang et al [ 34 ] indicated high glucose concentration and a positive relationship between energy supplementation and serum glucose concentration. However, in our experiment, this relationship was not detected, possibly impaired by physiological variations, breed, or environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

Effect of prepartum dietary energy source on goat maternal metabolic profile, neonatal performance, and economic profitability

Abou‐Elkhair¹,

Mahboub²,

Sadek³

et al. 2020

J Adv Vet Anim Res

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Objective: This work aimed at studying dietary energy supplementation effects during late pregnancy upon the metabolic status of does, as well as on the birth weight (BW), body temperature, and metabolic profile for their kids and the net economic profit. Materials and Methods: Eighty pregnant does (Egyptian Nubian) were equally split into four dietary treatments; the control (CON) receiving basal diet, the basal diet with 200 gm corn starch and 100 gm of molasses /h/d added (MS), the basal diet with 300 gm/h/d of corn grains added (CG), and the basal diet with 300 gm/h/d of barley grains added (BG). Results: Body weight and temperature of kids were significantly higher in MS and BG groups, respectively. The serum concentration of albumin (Alb), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) levels are significantly decreased. At the same time, urea and vitamin A increased dramatically in the BG group before giving birth. After birth, conversely, the serum concentration of albumin, AST, ALT, cholesterol, and vitamin A significantly increased with energy supplementation. Kids in the BG group show the most high level of albumin. Furthermore, all supplemented groups increased dramatically in vitamin A. The economic efficiency of the MS group, followed by the BG group, was significantly higher compared to the other treatments. Conclusion: It is beneficial for Egyptian farmers to feed extra concentrate (especially barley) to the does during late gestation stages to produce healthy kids with optimal BW and body temperature, as well as to avoid metabolic disorders that may affect the does at this critical stage. Finally, it can be said that this dietary supplementation may also increases the profit margins of the farmers.

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Effects of dietary starch types on rumen fermentation and blood profile in goats

Cited by 23 publications

References 25 publications

Dietary Starch Concentration Affects Dairy Sheep and Goat Performances Differently during Mid-Lactation

Dietary Starch Concentration Affects Dairy Sheep and Goat Performances Differently during Mid-Lactation

Productive and metabolic increments of the inclusion of Broussonetia papyrifera to replace maize silage in growing goats

Effect of prepartum dietary energy source on goat maternal metabolic profile, neonatal performance, and economic profitability

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