Fat- and protein-corrected milk formulation to be used in the life-cycle assessment of Mediterranean dairy goat systems

Mancilla-Leytón, Juan Manuel; Morales‐Jerrett, Eduardo; Pertíñez, Manuel Delgado; Guerrero, Yolanda Mena

doi:10.1016/j.livsci.2021.104697

Cited by 8 publications

(11 citation statements)

References 12 publications

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“…Gutierrez-Peña et al [6] also found a 41% difference in CF values for different dairy goat systems, depending on the equation used. These values are similar to those obtained by Mancilla-Leytón et al [7], who, using FPCM calculations for sheep, found an overestimation of 35% due to the higher fat content of sheep milk compared to goat milk. In the case of Equation ( 1), proposed by Mancilla-Leytón et al [7], the obtained kg of FPCM values obtained decreased between 2 and 7% with respect to the real values of milk production (Figure 1).…”

Section: Relevance Of the Standardization Equations Used To Calculate...supporting

confidence: 91%

A Comparative Analysis of Carbon Footprint in the Andalusian Autochthonous Dairy Goat Production Systems

Mancilla-Leytón,

Morales-Jerrett,

Muñoz-Vallés

et al. 2023

Animals

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The small ruminant livestock sector faces the challenge of reducing greenhouse gas (GHG) emissions. Carbon footprint (CF) studies on dairy goats, the most widely used indicator to quantify the impact of livestock farming on global warming, are still few. The aim of this study was to calculate the CF of the different production systems of autochthonous dairy goat breeds presently occurring in Andalusia (S Spain) and identify systems and practices that can minimize their environmental impact in these terms. Twenty-one farms were monitored during a year, obtaining valuable information that allowed the CF calculation on a “cradle-to-gate” approach, taking into account both GHG emissions at the farm level and carbon sink by vegetation associated with land-based systems. Results showed similar CF values for the analyzed systems (1.42, 1.04, 1.15, and 1.17 kg CO2-eq kg−1 fat–protein corrected milk for indoor systems without associated crops, indoor systems with associated crops, grazing systems with high feed supply, and pastoral systems, respectively). To minimize their environmental impact, specific actions must be developed for each system, particularly regarding genetic improvement, reproductive and feeding management, including pasture management, and the integration of livestock activity into the bio-circular economy with the help of professional advice.

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Section: Relevance Of the Standardization Equations Used To Calculate...supporting

confidence: 91%

A Comparative Analysis of Carbon Footprint in the Andalusian Autochthonous Dairy Goat Production Systems

Mancilla-Leytón,

Morales-Jerrett,

Muñoz-Vallés

et al. 2023

Animals

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“…SEM, standard error of means. 2 FPCM; fat and protein corrected milk = M (0.12×FC+0.10×PC+0.23; Mancilla‐Leyton et al., 2021 ). a,b Different letters indicate significant differences between experimental groups ( p < 0.05).…”

Section: Resultsmentioning

confidence: 99%

“…Milk samples were collected each week, and their pH, lactose, fat, protein, solids and solids‐not‐fat (SNF) were determined using a MilkoScan (milkoScan TM FT6000, FossElectric, Denmark). The fat and protein corrected milk (FPCM) for the Saanen breed with a milk fat content below 4% is calculated as follows: FPCM = M (0.12× FC+ 0.10× PC+0.23), where M = milk production (Kg), FC = milk fat content (%) and PC = milk protein content (%) (Mancilla‐Leyton et al., 2021 ).…”

Section: Methodsmentioning

confidence: 99%

Changes in the gene expression profile of the mammary gland lipogenic enzymes in Saanen goats in response to dietary fats

Barfourooshi

Sadeghipanah

Asadzadeh

et al. 2023

Veterinary Medicine & Sci

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Background The second half of the first pregnancy is a critical period in the growth and development of the mammary gland. The use of functional compounds during this period may positively impact livestock performance. Objectives In this study, changes in lipogenic enzyme gene expression in the mammary gland of Saanen goats in response to different dietary fat sources were analysed. Methods Goats from four groups (10 each) received these diets from the last two months of pregnancy through four months of lactation: C−, no added fat (negative control group), C+, with saturated palm oil (positive control group), SB, with roasted soybeans (omega‐6 group) and FS, with extruded flaxseed (omega‐3 group). The fat content was about 4% of dry matter. Milk yield, milk fatty acid profile, milk health index (HI) and gene expression of four lipogenic enzymes in mammary tissue were measured. Results The FS group had significantly higher milk production with lower omega‐6 to omega‐3, monounsaturated to polyunsaturated, and total saturated fatty acids compared to other groups. The shorter and longer than16‐carbon chain of total milk fatty acid indicates significantly higher values for the C− and C+ groups, respectively. The milk HI for the SB group was significantly higher. The gene expression profile for acetyl‐coenzyme A carboxylase was higher in the C− group than other experimental groups. Conclusions The results show that manipulation of the diet with unsaturated fat supplements improved milk production, synthesis of milk fat and molecular expression of lipogenic enzymes in mammary tissue in primiparous Saanen goats.

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“…To calculate the energy content of milk from fat and protein content, the method reported by Mancilla‐Leytón et al. (2021) Also, Kleiber ratios (KR) were determined as KR = ADG/WW 0.75 (Kleiber 1947).…”

Section: Methodsmentioning

confidence: 99%

“…2018; Mancilla‐Leytón et al. 2021). These differences are directly influenced by the production system, genotype, stage of lactation, birth weight, sex, type of birth, prenatal and postnatal period, maternal diet, and weight, and whether the milk is foremilk or hindmilk (Van Sadelhoff et al.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical quality characteristics of foremilk and hindmilk from native and crossbred dairy goats in a semi‐intensive production system

Erduran

2023

Int J of Dairy Tech

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The focus of this study was to investigate how the relative levels of physicochemical compositions in foremilk and hindmilk change during lactation and how they differed in relation to environmental factors and the offspring and maternal factors (including genotype, parity, offspring sex, birth type, flock, and year) that might influence these changes. The effects of these compositional changes on functional and health during lactation were then assessed. In conclusion, the effects of environmental factors on the physicochemical components of foremilk and hindmilk varied throughout lactation, and it is highly likely that these changes reflect the changing requirements of the mother and the growing offspring.

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Fat- and protein-corrected milk formulation to be used in the life-cycle assessment of Mediterranean dairy goat systems

Cited by 8 publications

References 12 publications

A Comparative Analysis of Carbon Footprint in the Andalusian Autochthonous Dairy Goat Production Systems

A Comparative Analysis of Carbon Footprint in the Andalusian Autochthonous Dairy Goat Production Systems

Changes in the gene expression profile of the mammary gland lipogenic enzymes in Saanen goats in response to dietary fats

Physicochemical quality characteristics of foremilk and hindmilk from native and crossbred dairy goats in a semi‐intensive production system

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