Factors affecting standardized milk and fat yields in Alpine goats
References (23)
- et al.
Genetic trend for milk yield from doe evaluation in the Northeast United States
J. Dairy Sci.
(1984) - et al.
Relation between hormones and mammary gland function
J. Dairy Sci.
(1980) - et al.
Effect of number of young born (litter size) on milk yield of goats: Role for placental lactogen
J. Dairy Sci.
(1979) - et al.
Genetics of dairy goats: A review
J. Dairy Sci.
(1978) - et al.
Genetic and phenotypic parameters of milk yield and milk composition in two Indian goat breeds
Small Rumin. Res.
(1990) - et al.
Joint effects of parity, age, and season of kidding on milk and fat yield in dairy goats
J. Dairy Sci.
(1981) - et al.
Performance of dairy goats fed soybean meal or meat and bone meal with or without urea during early lactation
J. Dairy Sci.
(1990) Effects of month of kidding, parity and litter size on milk yield of Alpine goats in Egypt
Small Rumin. Res.
(1992)- et al.
Genetic and non-genetic sources of variation in yield and composition of milk in Verata goats
Small Rumin. Res.
(1993) Studies on the placenta of the sheep (Ovis aries L.): Placental size
J. Reprod. Fertil.
(1964)
The relationship between breed and litter size in sheep and maternal serum concentrations of placental lactogen, estradiol and progesterone
J. Anim. Sci.
Cited by (20)
Effects of month of kidding, parity number, and litter size on milk yield of commercial dairy goats in Australia
2020, Journal of Dairy ScienceCitation Excerpt :As a result, goats delivering multiple kids had greater CMY (+35 L) than goats delivering single kids (Table 3). Our findings agree with those of several authors who found a higher milk production in multiple deliveries in commercially milked goats (Browning et al., 1995; Crepaldi et al., 1999; Brito et al., 2011). Litter size is positively associated with antepartum levels of mammogenic hormones such as placental lactogen, progesterone, and prolactin (Lérias et al., 2014).
The effects of nutrition and parity on the development and productivity of Angora goats: 3. Effects of six combinations of mid pregnancy and postnatal nutrition on udder development, lactation, milk composition and net energy of milk production
2018, Small Ruminant ResearchCitation Excerpt :As Wang (1989) reported heritabilities for full and empty udder volume in Toggenburg goats of 0.51 and 0.70 respectively, it could be expected that Angora goats may respond to selection for udder volume in a relatively short time period. It appears that physiological differences in mammary gland development during gestation have a great impact on milk production (Browning et al., 1995; Goetsch et al., 2011). Angora goat farmers could use udder size as an indicator of milk production potential, but they need to be aware that parity significantly affects udder size and that the udder grows rapidly as parturition approaches.
Inbreeding depression and environmental effect on milk traits of the Murciano-Granadina goat breed
2016, Small Ruminant ResearchCitation Excerpt :According to Knight and Peaker (1982), this is because the proportion of mammary alveoli that develop in previous lactations do not regress completely, but they are added to those that are developed in subsequent lactations, increasing the secretory parenchyma. In general, there is a decrease in milk production and its components from the sixth parity order and in animals with an age at kidding exceeding six years (Mavrogenis et al., 1984; Browning et al., 1995; Goetsch et al., 2011; Krajinović et al., 2011. Panetto et al. (2010) also verified the significant inbreeding effect on total milk production (TMP), fat (TFP) and dry extract (TDEP), and lack of significant effect on total protein production (TPP).
Genetic analysis of milk production traits in Jonica goats
2015, Small Ruminant ResearchCitation Excerpt :It is important to underline that, in many reports, litter size affected milk yield in suckled does and only before weaning (Hadjipanayiotou and Louca, 1976; Mourad, 1992; Rabasco et al., 1993). However, in the present investigation a positive relationship was found between type of birth and milk yield in accordance with the results obtained in many goat breeds such as: Alpine, Jamunapari, Black Bengal and Zaraibi (Browning et al., 1995; Valencia et al., 2002; Hamed et al., 2009 Mia et al., 2013; Singh et al., 2000, 2014). This result may be explained considering that litter size modifies the endocrines profiles in prepartum does: progesterone, estrogen, and placental lactogen produced by feto-placental unit influence mammogenesis and lactogenesis (De Louis et al., 1980).
Factors affecting goat milk production and quality
2011, Small Ruminant ResearchCitation Excerpt :Therefore, use of a mixed herd of different breeds for balanced volume, fat and protein concentrations, and SCC to meet regulatory requirements and for cheese and yogurt manufacturing is a consideration. Milk yield by goats, both dairy (Browning et al., 1995; Carnicella et al., 2008; Delgado-Pertínẽz et al., 2009a) and other breeds (Zahraddeen et al., 2009), can be affected by prolificacy. Delgado-Pertínẽz et al. (2009a) noted greater yield by Payoya autochthonous dairy goats of southern Spain in weeks 1–5 of lactation with two kids vs. one regardless of natural suckling compared with machine-milking.
The mammary gland in small ruminants: Major morphological and functional events underlying milk production - A review
2014, Journal of Dairy Research
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Present address: Cooperative Agricultural Research Program, Tennessee State University, 3500 John A. Merritt Blvd., Nashville, TN 37209-1561, USA.
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Present address: Neuroscience Program, Department of Physiology, Meharry Medical College, Nashville, TN 37208, USA.