Forage sources in diets for dairy goats

Ramos, João Paulo de Farias; Sousa, Wandrick Hauss de; Oliveira, Juliana; Filho, Edgard Cavalcanti Pimenta; Santos, Edson Mauro; Leite, Ricardo Miranda; Cavalcante, Iara Tamires Rodrigues; Oresca, Denizard

doi:10.4025/actascianimsci.v42i1.46084

Cited by 8 publications

(10 citation statements)

References 27 publications

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“…However, these authors claim that in diets with a higher roughage: concentrate ratio, such as 75:25, levels of 50% DM in the roughage from cactus pear can limit animal dry matter intake, causing satiety by filling the rumen due to the large volume that this material occupies in the rumen and consequently limit the energy demand necessary to meet the physiological state of the animal. According to Ramos et al (2020), the combination of pear cactus and hay can impact the gastrointestinal passage rate. The size of the cactus particles is a crucial factor that can affect the animals' intake, digestibility, and ingestive behavior.…”

Section: Discussionmentioning

confidence: 99%

Milk yield and composition in dairy goats fed pornunça hay or cactus pear levels

Nunes,

Queiroz,

Menezes

et al. 2023

Preprint

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The aim of this study was to assess the impact of diets containing pornunça hay (Manihot sp) and levels of cactus pear (Opuntia ficus-indica L. Mill) in their natural state on the intake, digestibility, ingestive behavior, milk production, and quality, as well as the economic feasibility for lactating goats. Eight multiparous goats with 30 days of lactation and an average weight of 40 ± 2.5 kg and an average production of 2 ± 1.8 kg/day were used, distributed in a double Latin square design (4x4). The treatments consisted of isoproteic diets which are composed of increasing levels of cactus pear (0, 10, 20, and 30% dry matter). Incorporating cactus pear into the diet of lactating goats resulted in a significant decrease (P<0.05) in water intake and the intake of most evaluated nutrients, which directly reflected in the diet effectively consumed by the animals. However, it did not affect (P>0.05) milk production or fat-corrected milk production. Incorporating cactus pear into the diet of lactating goats resulted in a significant decrease (P<0.05) in production costs, water intake, and the intake of most evaluated nutrients, which were directly reflected in the diet effectively consumed by the animals. However, it did not affect (P>0.05) milk production or fat-corrected milk production. The level of 30% cactus pear inclusion in the diet of lactating goats increased the economic efficiency of production without affecting milk production and maintaining a good composition of solids.

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Section: Discussionmentioning

confidence: 99%

Milk yield and composition in dairy goats fed pornunça hay or cactus pear levels

Nunes,

Queiroz,

Menezes

et al. 2023

Preprint

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“…The similar milk yield and composition, irrespective of the level of maize replaced with spineless cactus, may be associated with the high ability of the goat species to adapt to quantitative and qualitative variations of diets or forages, without changing their performance (Ramos et al ., 2020). This was confirmed by Vicente et al .…”

Section: Discussionmentioning

confidence: 99%

Replacement of grain maize with spineless cactus in the diet of dairy goats

Pereira

Neto

Gracindo

et al. 2021

Journal of Dairy Research

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Spineless cactus (Nopalea cochenillifera) is widely used in animal feed in semi-arid regions, due to the adaptive characteristics to such conditions and for having high levels of soluble carbohydrates. This research article describes the effect of replacing grain maize with spineless cactus in the diet of dairy goats on dry matter intake, water intake, milk yield, milk physicochemical characteristics and diet production costs. Eight multiparous Anglo Nubian goats were fed diets in which grain maize was replaced with spineless cactus at four levels (0, 33, 66, and 100%) in a double 4 × 4 Latin square design. Milk yield was measured and samples collected in the last three days of each period for physicochemical analysis and for determining nutrient intake. Diet production costs were also determined. Replacing maize with spineless cactus did not influence dry matter intake. Water intake via the drinker decreased linearly in response to the increasing levels of spineless cactus in the diet. The replacement of maize with spineless cactus did not change milk yield or physicochemical parameters. Total feed cost and the percentage of revenue losses from feed decreased with the replacement. Therefore, spineless cactus can fully replace grain maize in the diet of dairy goats, as it does not change dry matter intake or milk yield, but rather reduces feed costs and the drinking-water intake of goats.

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“…Dairy goats production represent one of the most important activities of the productive sector in the Brazilian semiarid region, being one of the main sources to ensure the food supply of rural families, generating jobs and income for the region. However, local climatic conditions promote an oscillation in the supply and nutritional value of forage, leading to a productive de cit in herds due to feed scarcity (Ramos et al, 2020;Silva et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Intake, digestibility, milk production, ingestive behavior and gas emissions of Saanen goats fed pornunça silage with levels of condensed tannin extracted from Schinopsis brasiliensis

Menezes

Carvalho

Lucena

et al. 2023

Preprint

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The objective of this study was to determine the greatest concentration of condensed tannin (CT) extracted from Schinopsis brasiliensis in pornunça silages based on intake, digestibility, milk production, ingestive behavior and estimated greenhouse gas (GHG) emissions in dairy goats. Eight multiparous Saanen goats at 30 days of lactation, with 38.0 kg of initial body weight, production of 2.0 ± 0.4 kg of milk/day, mean age of 2–3 years, were distributed in a double Latin square (4x4) with four experimental periods and four diets with different tannin levels at concentrations 0% (control), 2.4, 3.6 and 4.8% tannin of total diet. The CT levels in the silage of pornunça promoted a linear decrease for the intake of dry matter (DM, P < 0.001), organic matter (OM, P < 0.001), ash (P < 0.001), crude protein (CP, P < 0.001), neutral detergent fiber (NDF, P < 0.001), acid detergent fiber (ADF, P < 0.001) and water (P < 0.001). The inclusion of CT also promoted a linear decrease in apparent digestibility coefficients of DM (P < 0.001), OM (P < 0.001) and CP (P < 0.001), milk production (P < 0.001), NDF (P < 0.001), and GHG emission estimation (P < 0.001). The intake and rumination rates of DM and NDF showed a linear decrease (P < 0.001) with level of tannin in the diets. In the experimental conditions, the inclusion of condensed tannin extracted from Schinopsis brasiliensis in pornunça silages, at levels up to 2.4% DM basis, promotes a decrease in intake of DM (DMI) and OM (OMI) and milk production as decreases GHG emissions in Saanen goats.

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Forage sources in diets for dairy goats

Cited by 8 publications

References 27 publications

Milk yield and composition in dairy goats fed pornunça hay or cactus pear levels

Milk yield and composition in dairy goats fed pornunça hay or cactus pear levels

Replacement of grain maize with spineless cactus in the diet of dairy goats

Intake, digestibility, milk production, ingestive behavior and gas emissions of Saanen goats fed pornunça silage with levels of condensed tannin extracted from Schinopsis brasiliensis

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