GB4143-2022

Frozen bovine semen

牛冷冻精液

GB 4143-2022 é uma norma nacional chinesa obrigatória vigente: Frozen bovine semen. Setor: Alimentos. Foco: Segurança de produtos. Entrada em vigor: 1 de jan. de 2024.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies specifically to the production, quality evaluation, and distribution of frozen bovine semen. It covers various cattle types, including ordinary cattle (dairy, beef, dual-purpose, and yellow cattle), zebu, buffalo, yak, and gayal. It is mandatory for all manufacturers and suppliers involved in the production and distribution of bovine genetic materials within the Chinese market.

Requisitos técnicos

GB 4143-2022 specifies comprehensive technical requirements for frozen bovine semen to ensure genetic quality and biological safety. The standard defines strict thresholds for dose volume, categorized by mini and medium tube types. It sets minimum limits for sperm motility, evaluated at 37°C, and establishes required counts for progressively motile sperm per dose, which vary depending on the specific bovine species (e.g., ordinary cattle vs. buffalo). Furthermore, the standard imposes maximum allowable limits for sperm abnormalities and aerobic plate count to guarantee microbiological safety. Compliance with these technical parameters is mandatory for market access. The standard also details requirements for sampling procedures, emphasizing random selection and strict cold-chain safety using liquid nitrogen biological containers compliant with GB/T 5458 and GB/T 14174.

Métodos de ensaio

The standard outlines specific laboratory testing methods, detailed in a normative appendix, to evaluate the required technical parameters. Key evaluations include the microscopic assessment of sperm motility and abnormal sperm percentage using staining techniques like Giemsa. The progressively motile sperm count is determined using a hemocytometer (Thoma counting chamber) with a specified dilution method. Additionally, the aerobic plate count is conducted using standard microbiological cultivation methods in accordance with GB 4789.2-2016. Strict adherence to these specified testing procedures is essential for valid compliance verification.

Perguntas frequentes

What products are regulated under GB 4143-2022?

The standard applies to frozen bovine semen across various species, including ordinary cattle (dairy, beef, dual-purpose, and yellow cattle), zebu, buffalo, yak, and gayal. It is mandatory for all manufacturers and suppliers producing or exporting these genetic materials to China.

Are there any updates from the previous version of GB 4143-2022?

The 2022 revision removes requirements for fresh semen and breeding bulls. It transitions the frozen semen appearance requirement into a packaging specification. Furthermore, it updates the technical limits for dose volume, sperm motility, progressively motile sperm count, abnormal sperm percentage, and aerobic plate count, while introducing new requirements for type testing, accompanying documents, storage, and transportation.

How does GB 4143-2022 differ from international standards?

While GB 4143-2022 establishes national mandatory technical indicators, it uniquely incorporates a normative appendix detailing specific laboratory evaluation procedures. It also includes a dedicated informative appendix providing a standardized Pinyin-based coding system for 136 specific Chinese and international cattle breeds, ensuring precise traceability in the domestic market.

The summary above provides a high-level overview of GB 4143-2022. To ensure complete compliance for your bovine genetic products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 4143-2022 today to access all detailed parameters, calculation formulas, breed code tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Produto
CCS: B43
ICS: 65.020.30
Órgão competente: Ministry of Agriculture and Rural Affairs
Comitê técnico: Ministry of Agriculture and Rural Affairs

Relações

Substitui:GB 4143-2008